{"id":6644,"date":"2026-07-01T09:00:00","date_gmt":"2026-07-01T14:00:00","guid":{"rendered":"https:\/\/www.oxidationtech.com\/blog\/?p=6644"},"modified":"2026-06-15T09:17:06","modified_gmt":"2026-06-15T14:17:06","slug":"clean-dry-air-requirements-for-oxygen-concentrators","status":"publish","type":"post","link":"https:\/\/www.oxidationtech.com\/blog\/clean-dry-air-requirements-for-oxygen-concentrators\/","title":{"rendered":"Clean, Dry Air Requirements for Oxygen Concentrators"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\">Clean, Dry Air Requirements for Oxygen Concentrators<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">High concentration ozone generators rely on oxygen concentrators. For technicians and customers operating oxygen concentrators (oxygen generators), one of the most common causes of failure is improper supply air. Many users either don\u2019t realize they must provide <strong>clean, dry compressed air<\/strong>, or they are unsure what that actually means.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This guide defines the requirements and explains why they are critical to long-term performance.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h1 class=\"wp-block-heading\">Minimum Air Requirements<\/h1>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:70%\">\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\">Oxygen concentrators using external or plant compressed air should meet the following:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Air Quality:<\/strong> ISO8573.1 Class 1.4.1 <br><strong>Air Pressure:<\/strong> Minimum 90 PSI<br><strong>Air Temperature:<\/strong> Maximum 100\u00b0F (38\u00b0C)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">These specifications should be included in quotes, manuals, and installation documentation.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:30%\">\n<figure class=\"wp-block-image size-full is-resized\"><a href=\"https:\/\/www.oxidationtech.com\/blog\/wp-content\/uploads\/2026\/04\/Screenshot-2026-04-28-082615.png\"><img loading=\"lazy\" decoding=\"async\" width=\"853\" height=\"437\" src=\"https:\/\/www.oxidationtech.com\/blog\/wp-content\/uploads\/2026\/04\/Screenshot-2026-04-28-082615.png\" alt=\"\" class=\"wp-image-6646\" style=\"aspect-ratio:1.952008769003479;width:381px;height:auto\" srcset=\"https:\/\/www.oxidationtech.com\/blog\/wp-content\/uploads\/2026\/04\/Screenshot-2026-04-28-082615.png 853w, https:\/\/www.oxidationtech.com\/blog\/wp-content\/uploads\/2026\/04\/Screenshot-2026-04-28-082615-300x154.png 300w, https:\/\/www.oxidationtech.com\/blog\/wp-content\/uploads\/2026\/04\/Screenshot-2026-04-28-082615-768x393.png 768w\" sizes=\"auto, (max-width: 853px) 100vw, 853px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h1 class=\"wp-block-heading\">Why Clean, Dry Air is Critical<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>molecular sieve material<\/strong> is the core component inside oxygen concentrators. Under proper conditions, it can last <strong>3\u20137 years<\/strong> while producing high-purity oxygen.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">However, moisture and oil contamination quickly destroy the sieve material, and lead to more problems: <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Oxygen purity drops<\/li>\n\n\n\n<li>Production output decreases<\/li>\n\n\n\n<li>Ozone generator cells may be damaged<\/li>\n\n\n\n<li>Costly repairs and downtime occur<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Leading causes of sieve failure<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Moisture in supply air (most common)<\/li>\n\n\n\n<li>Oil contamination<\/li>\n\n\n\n<li>High temperature air<\/li>\n\n\n\n<li>Dust and particulate contamination<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Even moderate contamination can destroy sieve beds within days.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h1 class=\"wp-block-heading\">Plant Air\u2013Fed Units<\/h1>\n\n\n\n<h3 class=\"wp-block-heading\">Air quality requirements for filtered air:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Dry &#8211; dew point of 38 degrees F or lower<\/li>\n\n\n\n<li>Clean &#8211; particle size of .1 micron or less<\/li>\n\n\n\n<li>Oil-free &#8211; less than or equal to 0.01 mg\/m^3<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Hot, humid, dirty, or oily air rapidly degrades molecular sieve performance.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Pressure Requirement<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Incoming air pressure must be <strong>at least 90 PSI (6.2 bar)<\/strong>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ensures low dew point<\/li>\n\n\n\n<li>Ensures adequate air flow through suitable pressure regulator<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Temperature Requirement<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Compressed air must be <strong>100\u00b0F (38\u00b0C) or lower<\/strong>. Hot air holds significantly more water vapor than cool air and contributes to the following problems:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Reduce efficiency<\/li>\n\n\n\n<li>Increase moisture content<\/li>\n\n\n\n<li>Damage sieve material over time<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h1 class=\"wp-block-heading\">Recommended Air System Components<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Most installations require the following components:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Aftercooler<\/li>\n\n\n\n<li>Refrigerated air dryer<\/li>\n\n\n\n<li>Air storage\/surge tank<\/li>\n\n\n\n<li>Filtration system<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">These components remove moisture before the air reaches the oxygen generator.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h1 class=\"wp-block-heading\">Built-In Air Inlet Filter<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">All oxygen concentrators include a <strong>secondary filter<\/strong> at the Air-IN connection with a clear bowl.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This filter is:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>NOT the primary air treatment<\/li>\n\n\n\n<li>Only a backup safeguard<\/li>\n\n\n\n<li>Should remain clean and dry<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Check daily.<\/strong><br>If moisture or contamination appears, the upstream air system requires immediate attention.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h1 class=\"wp-block-heading\">Compressor Maintenance Requirements<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">To maintain proper air quality, perform these maintenance steps:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Drain condensation from air tanks regularly<\/li>\n\n\n\n<li>Blow out air distribution lines<\/li>\n\n\n\n<li>Replace internal filter element every 6 months<\/li>\n\n\n\n<li>Maintain compressor per manufacturer instructions<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Pipe scale, oil carryover, and water vapor must be minimized for long-term operation.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h1 class=\"wp-block-heading\">Units With Built-In Compressors<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">The location for the installation of oxygen concentrator equipment with built-in compressors is critical.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Air-conditioned space (recommended)<\/li>\n\n\n\n<li>Temperature range: 40\u00b0F \u2013 100\u00b0F (5\u00b0C \u2013 38\u00b0C)<\/li>\n\n\n\n<li>Clean air environment<\/li>\n\n\n\n<li>Low humidity area<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Environments containing the following contaminants must be avoided:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Oil vapor<\/li>\n\n\n\n<li>Ammonia<\/li>\n\n\n\n<li>Hydrocarbons<\/li>\n\n\n\n<li>Carbon monoxide<\/li>\n\n\n\n<li>High humidity<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ammonia exposure will cause <strong>immediate, irreversible sieve damage.<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h1 class=\"wp-block-heading\">Automatic Condensate Drain<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Units with onboard compressors include the following components:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Filter system<\/li>\n\n\n\n<li>Automatic condensate drain<\/li>\n\n\n\n<li>Timer (every 10\u201315 minutes)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">These should be checked daily to confirm proper operation and verify bowls remain dry.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h1 class=\"wp-block-heading\">Understanding Dew Point and Moisture<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Air drying works by <strong>cooling air until moisture condenses<\/strong> and drains away.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>dew point<\/strong> indicates how much water vapor is present.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Example moisture content:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Dew Point<\/th><th>Water per m\u00b3<\/th><\/tr><\/thead><tbody><tr><td>0\u00b0F<\/td><td>1.08 g<\/td><\/tr><tr><td>40\u00b0F<\/td><td>6.55 g<\/td><\/tr><tr><td>80\u00b0F<\/td><td>25.22 g<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Higher dew point = more moisture = faster sieve damage.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<p class=\"wp-block-paragraph\"><strong>Related article:<\/strong><br><a href=\"https:\/\/www.oxidationtech.com\/blog\/clean-dry-air\/\">https:\/\/www.oxidationtech.com\/blog\/clean-dry-air\/<\/a><\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-oxidation-technologies-news wp-block-embed-oxidation-technologies-news\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"EK8LqAnJ4Z\"><a href=\"https:\/\/www.oxidationtech.com\/blog\/clean-dry-air\/\">Clean Dry Air<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;Clean Dry Air&#8221; &#8212; Oxidation Technologies News\" src=\"https:\/\/www.oxidationtech.com\/blog\/clean-dry-air\/embed\/#?secret=Wie5ImfvnW#?secret=EK8LqAnJ4Z\" data-secret=\"EK8LqAnJ4Z\" width=\"500\" height=\"282\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\"><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h1 class=\"wp-block-heading\">How Much Water Enters a Concentrator?<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">A small <strong>10 LPM oxygen concentrator<\/strong> processes <strong>5,760 cubic feet of air per day<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At an <strong>80\u00b0F dew point<\/strong>, this equals <strong>approximately one gallon of water<\/strong> entering the sieve material every 24 hours.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Impact of this moisture:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Reduces oxygen output<\/li>\n\n\n\n<li>Degrades zeolite material<\/li>\n\n\n\n<li>Causes early failure<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h1 class=\"wp-block-heading\">Dew Point vs. Sieve Life<\/h1>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\">\n<p class=\"wp-block-paragraph\"><strong>30\u201350\u00b0F dew point<\/strong><br>Comfortable room air<br>Expected life: 15,000\u201320,000 hours (~2 years)<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\">\n<p class=\"wp-block-paragraph\"><strong>50\u201365\u00b0F dew point<\/strong><br>Humid\/sticky conditions<br>Expected life: 10,000\u201312,000 hours (~1 year)<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\">\n<p class=\"wp-block-paragraph\"><strong>Above 65\u00b0F dew point<\/strong><br>Tropical\/muggy conditions<br>Sieve failure within weeks<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\">\n<p class=\"wp-block-paragraph\"><strong>Recommended target:<\/strong><br><strong>\u2264 50\u00b0F dew point<\/strong><\/p>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h1 class=\"wp-block-heading\">Pressure Dew Point (PDP)<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">When air is compressed, water condenses at a higher temperature. This is called <strong>Pressure Dew Point (PDP).<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Example:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ambient air<br>80\u00b0F temperature<br>65\u00b0F dew point<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Compressed to ~40 PSI then cooled back to 80\u00b0F:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">New dew point \u2248 50\u00b0F<br>(Borderline acceptable)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Proper cooling inside the concentrator is critical to achieving this.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h1 class=\"wp-block-heading\">Best Installation Practices<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Best option: Install concentrator in air-conditioned room<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Next best option: Use refrigerated air dryer (20\u201340\u00b0F dew point)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This significantly extends sieve material life.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h1 class=\"wp-block-heading\">External Refrigerated Air Dryer Option<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Our TOX concentrators support external refrigerant air dryers for high dew-point environments: <a href=\"https:\/\/www.oxidationtech.com\/tox-20.html\">https:\/\/www.oxidationtech.com\/tox-20.html<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">These units can also accept <strong>clean, dry plant air<\/strong> from an existing compressed air system.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h1 class=\"wp-block-heading\">Additional Resources<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Industrial High-Pressure Molecular Sieve<br><a href=\"https:\/\/www.oxidationtech.com\/xp-molecular-sieve.html\">https:\/\/www.oxidationtech.com\/xp-molecular-sieve.html<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Low Pressure Sieve Beds<br><a href=\"https:\/\/www.oxidationtech.com\/oxo10-module.html\">https:\/\/www.oxidationtech.com\/oxo10-module.html<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dry Air Feed Gas for Ozone Generators<br><a href=\"https:\/\/www.oxidationtech.com\/ozone\/ozone-generation\/o3-feed-gas.html\">https:\/\/www.oxidationtech.com\/ozone\/ozone-generation\/o3-feed-gas.html<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Clean, Dry Air Requirements for Oxygen Concentrators High concentration ozone generators rely on oxygen concentrators. For technicians and customers operating oxygen concentrators (oxygen generators), one [&hellip;]<\/p>\n","protected":false},"author":19,"featured_media":1903,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1241,1353,1326,1274,211,19],"tags":[1848,940,1845,1846,1854,1849,1851,1853,893,1852,1847,1858,1850,1857,1263,784,1856,1855],"class_list":["post-6644","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-air-dryer","category-compressor","category-oxygen-concentrator-2","category-oxygen-concentrator-module","category-ozone-industry-news","category-ozone-services-2","tag-air","tag-air-quality","tag-air-requirements","tag-clean","tag-clean-dry-air","tag-compressed-air","tag-compressors","tag-condensate-drain","tag-dew-point","tag-drain","tag-dry","tag-extrenal-refrigerated-air-dryer","tag-inlet-filter","tag-installation","tag-moisture","tag-oxygen-concentrators","tag-pressure-dew-point","tag-sieve-life"],"_links":{"self":[{"href":"https:\/\/www.oxidationtech.com\/blog\/wp-json\/wp\/v2\/posts\/6644","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.oxidationtech.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.oxidationtech.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.oxidationtech.com\/blog\/wp-json\/wp\/v2\/users\/19"}],"replies":[{"embeddable":true,"href":"https:\/\/www.oxidationtech.com\/blog\/wp-json\/wp\/v2\/comments?post=6644"}],"version-history":[{"count":3,"href":"https:\/\/www.oxidationtech.com\/blog\/wp-json\/wp\/v2\/posts\/6644\/revisions"}],"predecessor-version":[{"id":6648,"href":"https:\/\/www.oxidationtech.com\/blog\/wp-json\/wp\/v2\/posts\/6644\/revisions\/6648"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.oxidationtech.com\/blog\/wp-json\/wp\/v2\/media\/1903"}],"wp:attachment":[{"href":"https:\/\/www.oxidationtech.com\/blog\/wp-json\/wp\/v2\/media?parent=6644"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.oxidationtech.com\/blog\/wp-json\/wp\/v2\/categories?post=6644"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.oxidationtech.com\/blog\/wp-json\/wp\/v2\/tags?post=6644"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}