{"id":11033,"date":"2026-09-20T14:02:41","date_gmt":"2026-09-20T06:02:41","guid":{"rendered":"https:\/\/oxy-boss.com\/?p=11033"},"modified":"2026-09-29T16:40:46","modified_gmt":"2026-09-29T08:40:46","slug":"comment-identifier-le-bon-filtre-pour-votre-caisson-hyperbare","status":"publish","type":"post","link":"https:\/\/oxy-boss.com\/fr\/how-to-identify-the-correct-filter-for-your-hyperbaric-chamber\/","title":{"rendered":"Comment choisir le bon filtre pour votre syst\u00e8me de chambre hyperbare"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"500\" src=\"https:\/\/oxy-boss.com\/wp-content\/uploads\/Inspecting-oxygen-source-filters-for-a-hyperbaric-chamber-system.webp\" alt=\"Inspecting oxygen source filters for a hyperbaric chamber system\" class=\"wp-image-11034\" srcset=\"https:\/\/oxy-boss.com\/wp-content\/uploads\/Inspecting-oxygen-source-filters-for-a-hyperbaric-chamber-system.webp 800w, https:\/\/oxy-boss.com\/wp-content\/uploads\/Inspecting-oxygen-source-filters-for-a-hyperbaric-chamber-system-300x188.webp 300w, https:\/\/oxy-boss.com\/wp-content\/uploads\/Inspecting-oxygen-source-filters-for-a-hyperbaric-chamber-system-768x480.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">If you have a hyperbaric chamber at home or in a studio, at some point you&#8217;ll need to swap a filter. Maybe your chamber is starting to take longer to pressurize. Maybe the air coming out of the concentrator smells a bit different. Maybe you just realized you&#8217;ve been running for a year and you have no idea what&#8217;s actually inside that little black box.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This guide walks you through how to figure out which filter goes in your system \u2014 without buying the wrong one, and without falling for the &#8220;universal&#8221; filter trick. We&#8217;ll cover the four real filter points in a typical chamber, what each one does, how to read the part number off the side of yours, and the few hard rules around oxygen service.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">The 30-second version<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If you only do five things after reading this article, do these:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Find the data plate on your chamber.<\/strong>\u00a0The model number and serial number are printed on a metal plate riveted to the chamber shell. That plate is the single source of truth for which filter you need.<\/li>\n\n\n\n<li><strong>Don&#8217;t buy &#8220;universal&#8221; filters.<\/strong>\u00a0A filter that&#8217;s rated for industrial compressed air is not the same thing as one that&#8217;s safe in an oxygen-enriched environment. Materials, seals, and ratings differ.<\/li>\n\n\n\n<li><strong>Match the airflow spec, not just the micron number.<\/strong>\u00a0A filter that captures finer particles than yours needs is a filter that chokes your compressor. Read your existing filter&#8217;s rated flow (L\/min or cfm) before you order a replacement.<\/li>\n\n\n\n<li><strong>Replace on schedule, not when it &#8220;looks dirty.&#8221;<\/strong>\u00a0By the time a chamber filter looks visibly clogged, your compressor has been working overtime for weeks. Schedule beats eyeballing.<\/li>\n\n\n\n<li><strong>If anything looks off \u2014 burning smell, unusual noise, slow pressurization \u2014 stop and call the manufacturer before swapping.<\/strong>\u00a0Filters live inside pressure systems. Treat them like brake pads, not water bottles.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Now let&#8217;s actually walk through how to identify the right one.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">First: where filters live in your system<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A soft or hard hyperbaric chamber is not one filter. It&#8217;s a small filtration chain. Get this picture in your head first, and the rest of the article will make sense.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/oxy-boss.com\/soft-portable-hyperbaric-chamber\/\">For soft-shell chambers running at 1.5 ATA<\/a>, the airflow path looks roughly like this:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Room air \u2192 intake pre-filter (washable foam) \u2192 compressor \u2192 oxygen concentrator (10 L, 90% \u00b1 3% O\u2082) \u2192 outlet HEPA \/ bacterial filter \u2192 tubing \u2192 mask.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/oxy-boss.com\/hard-shell-hyperbaric-chamber\/\">For hard-shell chambers running up to 2.0 ATA<\/a>, the chain is similar but the housing is harder to open, and the compressor side carries more heat and oil vapor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Four things to notice:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>The oxygen concentrator and the air filter are not the same thing.<\/strong>\u00a0The concentrator separates oxygen from nitrogen using a molecular sieve bed \u2014 that&#8217;s a sorbent, not a filter media. If someone tells you to &#8220;replace the sieve like a filter,&#8221; they&#8217;ve misunderstood the system. Sieves last 5,000\u20138,000 operating hours; filters last weeks to months.<\/li>\n\n\n\n<li><strong>The chamber itself is pressurized with compressed air, not pure oxygen.<\/strong>\u00a0You breathe high-concentration oxygen through a mask inside the chamber, but the chamber atmosphere stays close to normal air. This matters for filter selection \u2014 the filter sees air, not pure O\u2082, but the downstream oxygen line is a different story.<\/li>\n\n\n\n<li><strong>There is usually more than one filter.<\/strong>\u00a0A typical setup has a coarse intake pre-filter (often washable foam), a compressor intake filter, an oxygen-side outlet filter, and on some units an in-line bacterial \/ particulate filter on the mask line.<\/li>\n\n\n\n<li><strong>Filters live in different pressure zones.<\/strong>\u00a0The intake side is at suction (low pressure); the outlet side is at positive pressure. They are not interchangeable even if the micron ratings look similar on paper.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Once you see the chain, the next question is obvious: which one do I actually need to replace?<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"500\" src=\"https:\/\/oxy-boss.com\/wp-content\/uploads\/Airflow-path-inside-a-hyperbaric-chamber-filtration-system.webp\" alt=\"Airflow path inside a hyperbaric chamber filtration system\" class=\"wp-image-11038\" srcset=\"https:\/\/oxy-boss.com\/wp-content\/uploads\/Airflow-path-inside-a-hyperbaric-chamber-filtration-system.webp 800w, https:\/\/oxy-boss.com\/wp-content\/uploads\/Airflow-path-inside-a-hyperbaric-chamber-filtration-system-300x188.webp 300w, https:\/\/oxy-boss.com\/wp-content\/uploads\/Airflow-path-inside-a-hyperbaric-chamber-filtration-system-768x480.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">How to identify which filter you need<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">There are six ways to do this. We list them roughly in order from &#8220;do this first&#8221; to &#8220;do this only if nothing else worked.&#8221;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Read the data plate on the chamber<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The metal nameplate riveted to the outside of every hard-shell chamber, and the printed label on the inside seam of every soft-shell chamber, contains:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Model number<\/strong>\u00a0(for example, OT-H401 or <a href=\"https:\/\/oxy-boss.com\/ot-s15t-hyperbaric-oxygen-chamber\/\">OT-S15T<\/a>)<\/li>\n\n\n\n<li><strong>Serial number<\/strong><\/li>\n\n\n\n<li><strong>Maximum working pressure<\/strong>\u00a0in ATA<\/li>\n\n\n\n<li><strong>Year of manufacture<\/strong><\/li>\n\n\n\n<li><strong>Manufacturer information<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Take a phone photo of this plate before you do anything else. This is the part number you&#8217;ll quote when you contact us or any authorized distributor.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Read the label on the existing filter<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Most replacement filters for chamber systems have a printed or embossed label that includes:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A part number (sometimes prefixed with &#8220;P\/N&#8221; or &#8220;RP&#8221;)<\/li>\n\n\n\n<li>A micron rating (e.g., 0.01 \u00b5m, 5 \u00b5m)<\/li>\n\n\n\n<li>A flow rating in L\/min or cfm<\/li>\n\n\n\n<li>A maximum operating temperature<\/li>\n\n\n\n<li>A &#8220;do not use with&#8221; or &#8220;oxygen-clean&#8221; marking on oxygen-side filters<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">If the label is gone, faded, or painted over, move to step 3.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. Measure the filter<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Three measurements will get you 90% of the way there:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Outer diameter<\/strong>\u00a0(mm)<\/li>\n\n\n\n<li><strong>Length<\/strong>\u00a0(mm)<\/li>\n\n\n\n<li><strong>Connector type and thread<\/strong>\u00a0(e.g., 1\/4&#8243; NPT male, push-fit 6 mm)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">A photo of the filter next to a ruler is even better. Send that, plus the data plate, when you contact us.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. Look up the part number on the manufacturer&#8217;s spare parts list<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">For Oxyboss chambers, the Air Filter Kit part numbers, prices, and replacement intervals are listed on our consumables page. The price for the standard Air Filter Kit is around USD 50, and the recommended replacement interval is\u00a0<strong>every 500\u20131,000 operating hours, or every 3\u20136 months, whichever comes first<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. Send a photo to the manufacturer or authorized distributor<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">If you can&#8217;t read the data plate, or the filter label is gone, take three photos: the chamber data plate, the existing filter (with a ruler next to it), and the connector end. Email or WhatsApp them to the seller. Anyone selling replacement filters who is unwilling to look at a photo before quoting you a part is a red flag.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">6. Don&#8217;t guess<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">We list this as the sixth option because it&#8217;s the most important. A wrong filter on the intake side chokes the compressor and shortens its life. A wrong filter on the oxygen-outlet side can introduce hydrocarbons into an oxygen-enriched line. Neither is a &#8220;good enough&#8221; outcome.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">The four filter types you&#8217;ll actually meet<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Even though part numbers vary by model, almost every chamber filter falls into one of these four buckets. Learn to recognize them.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Filter type<\/th><th>Where it sits<\/th><th>What it catches<\/th><th>Reusable?<\/th><th>Typical interval<\/th><\/tr><\/thead><tbody><tr><td><strong>Pre-filter (foam \/ gross particulate)<\/strong><\/td><td>Chamber room air intake<\/td><td>Dust, lint, hair<\/td><td>Yes \u2014 wash with mild soap, dry fully<\/td><td>Weekly visual check; replace if torn<\/td><\/tr><tr><td><strong>Compressor intake filter<\/strong><\/td><td>On the air compressor housing<\/td><td>Fine dust that would damage compressor valves<\/td><td>No<\/td><td>500\u20131,000 hours<\/td><\/tr><tr><td><strong>Oxygen-side outlet filter<\/strong><\/td><td>Between concentrator and mask line<\/td><td>Particulates shed by sieve beds, any residual compressor carryover<\/td><td>No<\/td><td>500\u20131,000 hours<\/td><\/tr><tr><td><strong>Bacterial \/ HEPA in-line filter<\/strong><\/td><td>On the mask line (optional on some models)<\/td><td>Bacteria, fine particles down to 0.01 \u00b5m<\/td><td>No<\/td><td>Per manufacturer; often 6\u201312 months<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A few notes on this table:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Washable does not mean &#8220;rinse and reinstall.&#8221;<\/strong>\u00a0Washable foam pre-filters must be\u00a0<strong>fully dry<\/strong>\u00a0before you put them back. Putting a damp filter into the suction side of a compressor is a common way to grow mold inside the air path.<\/li>\n\n\n\n<li><strong>HEPA-grade filters (H13 \/ H14) are not washable.<\/strong>\u00a0Water destroys the media. If your HEPA filter looks dirty, the answer is replace, not rinse. We see people try to vacuum these out \u2014 that also damages the media.<\/li>\n\n\n\n<li><strong>The &#8220;oxygen-clean&#8221; marking is not a marketing line.<\/strong>\u00a0Filters that go downstream of the concentrator and see elevated oxygen partial pressure must be cleaned and packaged to an oxygen-service standard. Industrial compressed-air filters often are not. We&#8217;ll come back to this in the safety section.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"500\" src=\"https:\/\/oxy-boss.com\/wp-content\/uploads\/Different-filter-types-used-in-a-hyperbaric-chamber-system.webp\" alt=\"Different filter types used in a hyperbaric chamber system\" class=\"wp-image-11036\" srcset=\"https:\/\/oxy-boss.com\/wp-content\/uploads\/Different-filter-types-used-in-a-hyperbaric-chamber-system.webp 800w, https:\/\/oxy-boss.com\/wp-content\/uploads\/Different-filter-types-used-in-a-hyperbaric-chamber-system-300x188.webp 300w, https:\/\/oxy-boss.com\/wp-content\/uploads\/Different-filter-types-used-in-a-hyperbaric-chamber-system-768x480.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Micron ratings: smaller isn&#8217;t always better<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">You&#8217;ll see filter micron ratings all over the place \u2014 40 \u00b5m, 5 \u00b5m, 0.3 \u00b5m, 0.01 \u00b5m. Here&#8217;s how to think about them.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Micron rating<\/th><th>What it relates to in real life<\/th><\/tr><\/thead><tbody><tr><td><strong>40 \u00b5m<\/strong><\/td><td>Visible dust, lint, hair<\/td><\/tr><tr><td><strong>5 \u00b5m<\/strong><\/td><td>Pollen, red blood cells (for reference)<\/td><\/tr><tr><td><strong>1 \u00b5m<\/strong><\/td><td>Bacteria, large virus carriers<\/td><\/tr><tr><td><strong>0.3 \u00b5m<\/strong><\/td><td>The MPPS (most-penetrating particle size) used to rate HEPA filters<\/td><\/tr><tr><td><strong>0.01 \u00b5m<\/strong><\/td><td>True HEPA \/ sub-HEPA, used on oxygen outlet lines on some chamber systems<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The trap is to assume that&nbsp;<strong>finer is always better<\/strong>. It isn&#8217;t, for two reasons:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Pressure drop.<\/strong>\u00a0A finer filter media restricts airflow more. Your compressor has to work harder to push the same volume of air through. Over months, that extra load shortens compressor life. The manufacturer&#8217;s specified flow rating is the upper bound \u2014 go finer and you&#8217;re trading compressor longevity for filtration you may not need.<\/li>\n\n\n\n<li><strong>Efficiency claims depend on the test method.<\/strong>\u00a0You&#8217;ll see filter listings that say &#8220;99.97% efficiency&#8221; and others that say &#8220;99.999%.&#8221; Both can be true \u2014 they&#8217;re measured against different particle sizes, different test aerosols, and different flow rates. The 99.97% figure is the HEPA standard (tested at 0.3 \u00b5m MPPS, the worst-case particle size for mechanical filtration). The 99.999% figure is often measured at a larger particle size where filtration is easier.\u00a0<strong>Without a stated test method and particle size, the two numbers are not comparable.<\/strong>\u00a0This is one of the most common sources of confusion when buying replacement filters, and one of the most common ways people overspend.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">If you want to compare two filters fairly, ask for:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>The test standard<\/strong> (EN 1822, ISO 29463, or ASTM equivalent)<\/li>\n\n\n\n<li><strong>The MPPS or test particle size<\/strong><\/li>\n\n\n\n<li><strong>The rated flow at a stated pressure drop<\/strong> (typically 250 Pa for HEPA-grade filters)<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">If the seller can&#8217;t answer those three, treat the efficiency number as a marketing line, not a spec.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Replacement schedule: don&#8217;t trust a single number<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If you&#8217;ve looked around the internet, you&#8217;ve seen replacement intervals quoted as &#8220;every 3 months,&#8221; &#8220;every 6\u201312 months,&#8221; &#8220;every 18\u201324 months,&#8221; and &#8220;every 2 years.&#8221; All of these numbers appear on real product pages. None of them are wrong, exactly \u2014 they&#8217;re just measuring different things.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Here&#8217;s the breakdown:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Source of the number<\/th><th>What it&#8217;s actually measuring<\/th><\/tr><\/thead><tbody><tr><td><strong>3\u20136 months<\/strong><\/td><td>Continuous commercial use (spa, wellness center) with multiple sessions per day<\/td><\/tr><tr><td><strong>6\u201312 months<\/strong><\/td><td>Home use with regular daily sessions (1\u20132 per day)<\/td><\/tr><tr><td><strong>12\u201324 months<\/strong><\/td><td>Light home use (a few times per week) on the compressor-side filter,&nbsp;<strong>or<\/strong>&nbsp;oxygen-concentrator sieve beds (which are not filters)<\/td><\/tr><tr><td><strong>2 years \/ 20,000 hours<\/strong><\/td><td>Sieve beds in PSA oxygen concentrators, again not filters<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The pattern:&nbsp;<strong>the interval scales with use intensity and what kind of component you&#8217;re talking about<\/strong>. There is no single &#8220;correct&#8221; interval that applies to every filter in every chamber.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The honest answer is the one we give in our own maintenance guide:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Replace the Air Filter Kit every&nbsp;<strong>500\u20131,000 operating hours<\/strong>, or every&nbsp;<strong>3\u20136 months<\/strong>, whichever comes first. Track your hours, not the calendar.<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">That interval is calibrated for Oxyboss chamber systems under typical home and small-commercial use. If you run sessions 8 hours a day at a wellness center, you&#8217;ll be closer to the 500-hour end. If you do one session a week at home, you&#8217;ll likely hit the 3\u20136 month end first.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">OEM filters vs. third-party &#8220;compatible&#8221; filters<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">You&#8217;ll see filters on marketplaces like Amazon and eBay marketed as &#8220;compatible replacement for [your model].&#8221; Some of them are fine. Some of them are not. Here&#8217;s how to tell which is which.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The four questions that matter:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Is the filter rated for the same flow as your OEM filter?<\/strong>\u00a0If the listing only gives a micron rating and no flow rating, that&#8217;s a red flag.<\/li>\n\n\n\n<li><strong>Is the filter oxygen-clean if it&#8217;s on the oxygen-outlet side?<\/strong>\u00a0The &#8220;oxygen-clean&#8221; label means the filter was manufactured and packaged in a way that excludes hydrocarbons from the media. Industrial-grade filters usually are not oxygen-clean. Putting one on the oxygen side of your chamber is a fire risk in an oxygen-enriched line.<\/li>\n\n\n\n<li><strong>Does the connector match exactly?<\/strong>\u00a0NPT thread pitch, push-fit diameter, and seal type all matter. &#8220;Fits most models&#8221; usually means &#8220;fits loosely on most models.&#8221;<\/li>\n\n\n\n<li><strong>What happens if the filter fails?<\/strong>\u00a0A pre-filter that lets dust through is annoying. An oxygen-side filter that outgasses hydrocarbons is a different category of problem. The closer to the oxygen line, the less room for compromise.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Our recommendation:&nbsp;<strong>use OEM filters for the oxygen-side and compressor intake filters. Pre-filters (the washable foam ones) can usually be third-party as long as the dimensions match.<\/strong>&nbsp;This isn&#8217;t a sales line \u2014 the OEM filter on the oxygen side is one of the few components where the consequences of a bad replacement can be invisible until something goes wrong.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you do buy a third-party filter, send us the spec sheet before you install it. We&#8217;ll tell you honestly whether it matches.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Safety: the things that nobody puts in the product description<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A few things are worth knowing that won&#8217;t show up on a filter listing.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Oxygen service cleanliness<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Filters on the oxygen-outlet side of your system must be cleaned and packaged to a standard that excludes oils, grease, and hydrocarbons from the media. The industry-standard references for this are ASTM G88 (Standard Guide for Designing Systems for Oxygen Service) and CGA G-4.1 (Cleaning of Equipment for Oxygen Service). If your filter&#8217;s datasheet doesn&#8217;t reference oxygen-service cleaning, don&#8217;t use it on the oxygen side.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Static and grounding<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Hyperbaric chambers can build up static electricity, especially in dry indoor air in winter. This matters because static discharge near elevated oxygen partial pressure is an ignition source. The relevant references are NFPA 99 (Health Care Facilities Code) Chapter 14 for hyperbaric facilities, and the bonding and grounding requirements in your chamber&#8217;s installation manual. For <a href=\"https:\/\/oxy-boss.com\/\">Oxyboss chambers<\/a>, the chamber body and the 3-in-1 oxygen source both have factory-installed grounding points; verify the wall outlet you plug into is properly grounded before first use.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Monitoring during sessions<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Hyperbaric sessions should not be undertaken unattended, especially at higher pressures. The hard-shell Oxyboss chambers are designed for assisted or supervised use \u2014 keep an intercom or visual contact with the occupant throughout the session. This is true regardless of which filter is installed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">A note on safety communications<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The U.S. Food and Drug Administration (FDA) has published safety communications highlighting that incidents \u2014 including serious injuries and, in some cases, deaths \u2014 have been reported with hyperbaric oxygen devices, often tied to unapproved uses, poor maintenance, or modified equipment. We reference this here as a reminder that hyperbaric equipment, including the filtration and pressure systems inside it, deserves the same respect you would give any pressurized system. The original FDA safety communication is the authoritative source.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">When to stop and call, not tinker<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A few symptoms mean stop using the chamber and contact the manufacturer before you do anything else:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Burning smell or any electrical odor<\/strong>\u00a0from the oxygen source<\/li>\n\n\n\n<li><strong>Visible cracks or whitening on the acrylic viewing window<\/strong><\/li>\n\n\n\n<li><strong>Hissing sound that wasn&#8217;t there before<\/strong>, especially at the door seal<\/li>\n\n\n\n<li><strong>Chamber fails to reach set pressure within the usual time<\/strong>\u00a0(soft chamber about 10\u201312 minutes to 1.5 ATA; hard chamber about 20\u201325 minutes to 2.0 ATA, depending on model)<\/li>\n\n\n\n<li><strong>Pressure drops after reaching set point and won&#8217;t hold<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">These symptoms can come from filters, but they can also come from door seals, pressure sensors, valves, or the compressor itself. The right answer is diagnostic, not guess-and-replace.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Maintenance log: keep one<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">We provide a maintenance log template in the user manual. Use it. Write down:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The date of each session<\/li>\n\n\n\n<li>Any unusual observation (smell, sound, slow pressurization)<\/li>\n\n\n\n<li>Filter replacements: date, part number, hours at replacement<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">A simple spreadsheet or notebook is enough. When you contact us about a filter question, the first thing we&#8217;ll ask is your operating hours. If you have them, the answer takes five minutes. If you don&#8217;t, we&#8217;re guessing.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">FAQ<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>How do I know if my filter is clogged?<\/strong><br>Slow pressurization is the most common early sign. A clogged intake filter chokes airflow, so the compressor takes longer to push the chamber up to set pressure. By the time you can see dirt on the filter, it&#8217;s been overworked for weeks.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Can I clean and reuse a HEPA filter?<\/strong><br>No. HEPA media is not washable and not vacuum-cleanable. Replace it.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>My chamber came with a foam pre-filter. Can I substitute any foam of the same size?<\/strong><br>If it&#8217;s the room-air intake pre-filter, yes \u2014 same dimensions and density work. If it&#8217;s on the compressor intake or oxygen side, no \u2014 use the OEM part.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What&#8217;s the difference between &#8220;absolute&#8221; and &#8220;nominal&#8221; filtration?<\/strong><br>Nominal filtration means the filter captures a certain percentage of particles&nbsp;<em>at a given size<\/em>, with no formal efficiency class. Absolute filtration (rated to EN 1822 H13 or higher) means the filter has been tested against a defined particle size and certified to capture at least 99.95% at MPPS. For oxygen-outlet filters, absolute-rated filters are strongly preferred.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>My filter&#8217;s label is unreadable. Can I just bring the old one to a hardware store and match it?<\/strong><br>Not for the oxygen-side or compressor intake filter. The micron rating alone doesn&#8217;t tell you the flow rating, the oxygen-service cleaning, or the connector spec. Send a photo to us instead.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Do I need to replace filters after long storage?<\/strong><br>If the chamber has been sitting unused for months, replace the air-side intake filter and visually inspect (don&#8217;t necessarily replace) the oxygen-side filter before the next session. Filters have a shelf life, especially foam.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">References and further reading<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The following are the standards and authoritative sources we used while writing this article. We do not link to third-party filter sellers or competing chamber brands \u2014 for parts, contact us directly.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/store.astm.org\/g0088-21.html\" target=\"_blank\" rel=\"noopener\">ASTM G88 \u2014 Standard Guide for Designing Systems for Oxygen Service<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/legacy.cganet.com\/Publication\/Details.aspx?id=G-4.1\" target=\"_blank\" rel=\"noopener\">CGA G-4.1 \u2014 Cleaning of Equipment for Oxygen Service<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.accessdata.fda.gov\/scripts\/cdrh\/cfdocs\/cfStandards\/detail.cfm?standard__identification_no=45591\" target=\"_blank\" rel=\"noopener\">NFPA 99 \u2014 Health Care Facilities Code (Chapter 14, hyperbaric facilities)<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.asme.org\/codes-standards\/find-codes-standards\/pvho-1-safety-standard-for-pressure-vessels-for-human-occupancy\" target=\"_blank\" rel=\"noopener\">ASME PVHO-1 \u2014 Safety Standard for Pressure Vessels for Human Occupancy (the standard our hard chambers are designed to)<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.iso.org\/standard\/84367.html\" target=\"_blank\" rel=\"noopener\">EN 1822 \/ ISO 29463 \u2014 HEPA and ULPA filter testing standards<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.iso.org\/iso-9001-quality-management.html\" target=\"_blank\" rel=\"noopener\">ISO 9001:2015 \u2014 Quality management systems<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.iso.org\/standard\/59752.html\" target=\"_blank\" rel=\"noopener\">ISO 13485:2016 \u2014 Medical devices quality management (our manufacturing process is certified to this; our products are not medical devices)<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/single-market-economy.ec.europa.eu\/sectors\/pressure-equipment\/pressure-equipment-directive_en\" target=\"_blank\" rel=\"noopener\">EU Pressure Equipment Directive 2014\/68\/EU \u2014 applicable to our hard-shell chamber pressure vessels<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.fda.gov\/medical-devices\/letters-health-care-providers\/follow-instructions-safe-use-hyperbaric-oxygen-therapy-devices-letter-health-care-providers\" target=\"_blank\" rel=\"noopener\">U.S. FDA \u2014 Safety Communication on Hyperbaric Oxygen Devices (referenced above)<\/a><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Need help identifying your filter?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Send us:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>A photo of the chamber data plate<\/li>\n\n\n\n<li>A photo of the existing filter (with a ruler)<\/li>\n\n\n\n<li>Your operating hours since last replacement (if known)<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">We will reply within one working day with the exact OEM part number and a shipping quote to your address.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Disclaimer:<\/strong>\u00a0This article is provided for general informational purposes. Hyperbaric chambers sold under the Oxyboss name are personal wellness devices designed for general wellness and recovery use. They are not medical devices and are not intended to diagnose, treat, cure, or prevent any medical condition. Always follow the installation, operation, and maintenance instructions in your chamber&#8217;s user manual. If you have a medical condition, consult a licensed physician before using any hyperbaric equipment.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>If you have a hyperbaric chamber at home or in a studio, at some point you&#8217;ll need to swap a filter. Maybe your chamber is starting to take longer to pressurize. Maybe the air coming out of the concentrator smells a bit different. Maybe you just realized you&#8217;ve been running for a year and you [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":11034,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-11033","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/oxy-boss.com\/fr\/wp-json\/wp\/v2\/posts\/11033","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oxy-boss.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/oxy-boss.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/oxy-boss.com\/fr\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/oxy-boss.com\/fr\/wp-json\/wp\/v2\/comments?post=11033"}],"version-history":[{"count":3,"href":"https:\/\/oxy-boss.com\/fr\/wp-json\/wp\/v2\/posts\/11033\/revisions"}],"predecessor-version":[{"id":11120,"href":"https:\/\/oxy-boss.com\/fr\/wp-json\/wp\/v2\/posts\/11033\/revisions\/11120"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oxy-boss.com\/fr\/wp-json\/wp\/v2\/media\/11034"}],"wp:attachment":[{"href":"https:\/\/oxy-boss.com\/fr\/wp-json\/wp\/v2\/media?parent=11033"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/oxy-boss.com\/fr\/wp-json\/wp\/v2\/categories?post=11033"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/oxy-boss.com\/fr\/wp-json\/wp\/v2\/tags?post=11033"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}