{"id":15087,"date":"2025-01-08T12:49:16","date_gmt":"2025-01-08T04:49:16","guid":{"rendered":"http:\/\/scubatechphilippines.com\/scuba_blog\/?p=15087"},"modified":"2025-01-08T12:49:16","modified_gmt":"2025-01-08T04:49:16","slug":"how-deep-can-you-dive-using-air","status":"publish","type":"post","link":"https:\/\/scubatechphilippines.com\/scuba_blog\/how-deep-can-you-dive-using-air\/","title":{"rendered":"How Deep Can You Dive Using Air?"},"content":{"rendered":"\n<h1 class=\"wp-block-heading has-text-align-center\">How Deep Can You Dive Using Air?<\/h1>\n\n\n\n<p>Are you curious about how deep you can safely dive using air? While diving with air is a popular choice for recreational divers, there are three key factors that limit the depth you can reach. <\/p>\n\n\n\n<p>These factors are:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/nitrogen-narcosis-sedation-consciousness\/\">Nitrogen narcosis<\/a><\/li>\n\n\n\n<li>CNS <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/oxygen-toxicity-thalmann\/\">oxygen toxicity<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/gas-density-diving-research-risks-recommendations\/\">Gas density<\/a><\/li>\n<\/ol>\n\n\n\n<p>In this article, I will explore each of these factors in detail and explain why they&#8217;re important for divers to understand. From the impact of nitrogen narcosis to the role of gas density in CO2 retention, I will provide you with valuable insights to help you stay safe on your next deep dive. Keep reading to learn more!<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_80 ez-toc-wrap-center counter-hierarchy ez-toc-counter ez-toc-transparent ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title ez-toc-toggle\" style=\"cursor:pointer\">Article Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/how-deep-can-you-dive-using-air\/#The-depth-limitations-of-air-as-a-diving-gas\" >The depth limitations of air as a diving gas<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/how-deep-can-you-dive-using-air\/#Three-factors-controlling-how-deep-can-you-dive-using-air\" >Three factors controlling how deep can you dive using air<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/how-deep-can-you-dive-using-air\/#Nitrogen-Narcosis\" >Nitrogen Narcosis<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/how-deep-can-you-dive-using-air\/#CNS-Oxygen-Toxicity\" >CNS Oxygen Toxicity<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/how-deep-can-you-dive-using-air\/#Gas-Density\" >Gas Density<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/how-deep-can-you-dive-using-air\/#Video-lesson-on-gas-density\" >Video lesson on gas density<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/how-deep-can-you-dive-using-air\/#The-depth-limits-of-using-air-for-diving\" >The depth limits of using air for diving<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/how-deep-can-you-dive-using-air\/#About-The-Author\" >About The Author<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/how-deep-can-you-dive-using-air\/#Purchase-my-exclusive-diving-ebooks\" >Purchase my exclusive diving ebooks!<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The-depth-limitations-of-air-as-a-diving-gas\"><\/span>The depth limitations of air as a diving gas<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nitrogen narcosis using air becomes debilitating below 30m\/100ft due to the high lipid solubility of nitrogen.<\/li>\n\n\n\n<li>Divers must limit their oxygen exposure to avoid <strong>CNS toxicity<\/strong>, which equates to a 56.6m\/185ft maximum depth when breathing air (21% O2).<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/gas-density-diving-research-risks-recommendations\/\">Gas density<\/a><\/strong> reduces respiratory efficiency, leading to CO2 retention, and becomes an issue when it exceeds 6g per liter, which is reached at 36m\/120ft when breathing air.<\/li>\n\n\n\n<li>Most major recreational dive agencies do not teach gas density management.<\/li>\n\n\n\n<li>Some agencies do teach it and apply a 30m\/100ft limit to air\/nitrox diving and <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/why-do-deep-divers-use-helium\/\">use helium mixtures<\/a> beyond that.<\/li>\n<\/ul>\n\n\n\n<div class=\"scuba-b4-h2-2\" style=\"margin-top: 10px;margin-bottom: 10px;\" id=\"scuba-497267058\"><div class=\"scuba-adlabel\">Sponsored Link<\/div><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-9354033900485448\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block;\" data-ad-client=\"ca-pub-9354033900485448\" \ndata-ad-slot=\"2393012471\" \ndata-ad-format=\"auto\" data-full-width-responsive=\"false\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Three-factors-controlling-how-deep-can-you-dive-using-air\"><\/span>Three factors controlling how deep can you dive using air<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>There are three factors that determine how deep can you dive using air:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Inert-Gas narcosis<\/li>\n\n\n\n<li>CNS oxygen toxicity<\/li>\n\n\n\n<li>Gas density<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Nitrogen-Narcosis\"><\/span>Nitrogen Narcosis<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Nitrogen narcosis using air begins to become debilitating through an anaesthetic effect below 30m\/100ft.&nbsp;This is due to the high lipid solubility of the nitrogen component (79%) in the air.&nbsp; The correlation between the lipid solubility of a gas and its anaesthetic property is defined in the Meyer-Overton Law of Lipid Solubility.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-andy-davis-sidemount-technical-wreck-diving-blog wp-block-embed-andy-davis-sidemount-technical-wreck-diving-blog\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"JPUlntaGLr\"><a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/nitrogen-narcosis-susceptibility-factors\/\">Nitrogen Narcosis: Why It Is Hard to Know You Are Narked<\/a><\/blockquote><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;Nitrogen Narcosis: Why It Is Hard to Know You Are Narked&#8221; &#8212; Andy Davis Sidemount Technical Wreck Diving Blog\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/nitrogen-narcosis-susceptibility-factors\/embed\/#?secret=Ddi6ogGvGg#?secret=JPUlntaGLr\" data-secret=\"JPUlntaGLr\" width=\"600\" height=\"338\" 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\">\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-andy-davis-sidemount-technical-wreck-diving-blog wp-block-embed-andy-davis-sidemount-technical-wreck-diving-blog\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"YYdBGagL9F\"><a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/nitrogen-narcosis-sedation-consciousness\/\">Nitrogen Narcosis Sedation &#038; Consciousness<\/a><\/blockquote><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;Nitrogen Narcosis Sedation &#038; Consciousness&#8221; &#8212; Andy Davis Sidemount Technical Wreck Diving Blog\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/nitrogen-narcosis-sedation-consciousness\/embed\/#?secret=T9AI7WZzKz#?secret=YYdBGagL9F\" data-secret=\"YYdBGagL9F\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"CNS-Oxygen-Toxicity\"><\/span>CNS Oxygen Toxicity<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Divers have to limit their oxygen exposure to a maximum <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/scuba-gas-laws-for-diving-physics\/\">partial pressure<\/a> of 1.4 ppO2 in order to avoid Central Nervous System (CNS) toxicity. At high pressure, oxygen interferes with neural function and will cause convulsions. This 1.4 ppO2 limit equates to a 56.6m\/185ft maximum depth when breathing air (21% O2).<\/p>\n\n\n\n<p>Read more about Oxygen toxicity in this article: <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/oxygen-exposure-management-scuba-diving\/\">Oxygen Exposure Management For Divers<\/a><\/p>\n\n\n\n<div class=\"scuba-b4-h2-3\" style=\"margin-top: 10px;margin-bottom: 10px;\" id=\"scuba-3402776823\"><div class=\"scuba-adlabel\">Sponsored Link<\/div><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-9354033900485448\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block;\" data-ad-client=\"ca-pub-9354033900485448\" \ndata-ad-slot=\"6151212517\" \ndata-ad-format=\"auto\" data-full-width-responsive=\"false\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Gas-Density\"><\/span>Gas Density<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The issue of Gas Density and its role in CO2 retention (<em><a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/scuba-diving-co2-narcosis-and-hypercapnia\/\">hypercapnia<\/a><\/em>) is woefully under-educated by many scuba training agencies. Gas density has been well studied and it is proven that a greater density of breathing gas reduces respiratory efficiency that leads to CO2 retention.<\/p>\n\n\n\n<p>Studies by the US Navy Experimental Dive Unit (<a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/understanding-m-values-eric-baker\/\">NEDU<\/a>) have illustrated a huge uptake in CO2 retention when breathing gas density exceeds 6g per litre. When breathing air, that 6g\/L limit is reached at just 36m\/120ft.<\/p>\n\n\n\n<p>To date, most of the major recreational dive agencies have simply ignored those scientific findings. They don&#8217;t teach gas density at all, to either instructors or technical divers.<\/p>\n\n\n\n<p>If big agencies DID acknowledge that issue and applied appropriate safety measures, then it&#8217;d severely curtail recreational deep diving &#8211; and that&#8217;d impact industry profits.<\/p>\n\n\n\n<p>There are some (<em>more ethical<\/em>) agencies that actively teach gas density management &#8211; and they apply a 30m\/100ft limit to air\/nitrox diving. Beyond this, they use <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/why-do-deep-divers-use-helium\/\">helium<\/a> (<em>trimix<\/em>) mixtures to mitigate both gas density and inert-gas narcosis risks.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-andy-davis-sidemount-technical-wreck-diving-blog wp-block-embed-andy-davis-sidemount-technical-wreck-diving-blog\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"GWsF49aT8b\"><a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/scuba-diving-anxiety-and-co2-narcosis\/\">Scuba Diving Anxiety &#038; CO2 Narcosis<\/a><\/blockquote><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;Scuba Diving Anxiety &#038; CO2 Narcosis&#8221; &#8212; Andy Davis Sidemount Technical Wreck Diving Blog\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/scuba-diving-anxiety-and-co2-narcosis\/embed\/#?secret=7iHD4h2RXM#?secret=GWsF49aT8b\" data-secret=\"GWsF49aT8b\" width=\"600\" height=\"338\" 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\">\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-andy-davis-sidemount-technical-wreck-diving-blog wp-block-embed-andy-davis-sidemount-technical-wreck-diving-blog\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"wD7AYDJyf8\"><a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/scuba-diving-co2-narcosis-and-hypercapnia\/\">CO2 Narcosis and Hypercapnia When Scuba Diving<\/a><\/blockquote><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;CO2 Narcosis and Hypercapnia When Scuba Diving&#8221; &#8212; Andy Davis Sidemount Technical Wreck Diving Blog\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/scuba-diving-co2-narcosis-and-hypercapnia\/embed\/#?secret=Wa0ftzfChD#?secret=wD7AYDJyf8\" data-secret=\"wD7AYDJyf8\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Video-lesson-on-gas-density\"><\/span>Video lesson on gas density<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Simon Mitchell, a leading decompression and hyperbaric physics researcher, gives an excellent lecture on gas density in this YouTube video. Every dive instructor and deep diver should watch it&#8230;<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-4-3 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"RESPIRATORY FAILURE IN TECHNICAL DIVING\" width=\"1290\" height=\"968\" src=\"https:\/\/www.youtube.com\/embed\/QBajM3xmOtc?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The-depth-limits-of-using-air-for-diving\"><\/span>The depth limits of using air for diving<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>In conclusion, diving with air is a popular choice among recreational divers, but there are limits to how deep you can safely go. <\/p>\n\n\n\n<p>Understanding the three key factors that limit your depth &#8211; nitrogen narcosis, CNS oxygen toxicity, and gas density &#8211; is essential for staying safe on your next dive. <\/p>\n\n\n\n<p>While some dive agencies may not teach gas density, there are ethical agencies that actively promote gas density management and apply safety measures to mitigate risks. <\/p>\n\n\n\n<p>By being aware of these factors and taking the necessary precautions, you can enjoy the thrill of deep diving while minimizing the risks involved. Remember to always prioritize safety on your dives.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n\n\n\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-content-justification-center is-layout-constrained wp-block-column-is-layout-constrained\" style=\"flex-basis:25%\">\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-medium is-resized is-style-default\"><a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/andy-davis-technical-diving\/\"><img decoding=\"async\" width=\"300\" height=\"296\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2018\/03\/Cartoon-Andy-900x900-1-300x296.png\" alt=\"Andy Davis Technical Sidemount Wreck Diving Subic Bay Philippines RAID Courses Training\" class=\"wp-image-6812\" style=\"width:225px;height:222px\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2018\/03\/Cartoon-Andy-900x900-1-300x296.png 300w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2018\/03\/Cartoon-Andy-900x900-1-1024x1009.png 1024w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2018\/03\/Cartoon-Andy-900x900-1-768x757.png 768w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2018\/03\/Cartoon-Andy-900x900-1.png 1280w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-constrained wp-block-column-is-layout-constrained\" style=\"flex-basis:75%\">\n<h2 class=\"wp-block-heading has-text-align-center\"><span class=\"ez-toc-section\" id=\"About-The-Author\"><\/span>About The Author<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><a href=\"https:\/\/buymeacoffee.com\/andydavistech\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"274\" height=\"77\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/bmc-button-1-1.png\" alt=\"\" class=\"wp-image-27046\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/bmc-button-1-1.png 274w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/bmc-button-1-1-250x70.png 250w\" sizes=\"(max-width: 274px) 100vw, 274px\" \/><\/a><\/figure>\n\n\n\n<p><a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/andy-davis-technical-diving\/\">Andy Davis<\/a> is a <a href=\"https:\/\/scubatechphilippines.com\/raid-diving-courses-philippines\/raid\/\">RAID<\/a>, PADI TecRec, ANDI, BSAC, and SSI-qualified independent <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/what-is-technical-diving\/\">technical diving<\/a> instructor who specializes in teaching <a href=\"https:\/\/scubatechphilippines.com\/sidemount-courses\/\">sidemount<\/a>, <a href=\"https:\/\/scubatechphilippines.com\/technical-diving-courses\/\">trimix<\/a>, and <a href=\"https:\/\/scubatechphilippines.com\/technical-diving-courses\/\">advanced wreck<\/a> diving courses.<\/p>\n<\/div>\n<\/div>\n\n\n\n<p>Currently residing in <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/subic-bay-wreck-diving-sites\/\">Subic Bay, Philippines<\/a>; he has amassed more than 10,000 open-circuit and CCR dives over three decades of challenging diving across the globe.<\/p>\n\n\n\n<p>Andy has published numerous diving magazine articles and designed advanced certification courses for several dive training agencies, He regularly tests and reviews new dive gear for scuba equipment manufacturers. Andy is currently writing a series of <a href=\"https:\/\/www.buymeacoffee.com\/andydavistech\/extras\">advanced diving books <\/a>and creating a range of <a href=\"https:\/\/www.redbubble.com\/people\/andydavistech\/shop\">tech diving clothing and accessories<\/a>.<\/p>\n\n\n\n<p>Prior to becoming a professional technical diving educator in 2006, Andy was a commissioned officer in the Royal Air Force and has served in Iraq, Afghanistan, Belize, and Cyprus.<\/p>\n\n\n\n<p>In 2023, Andy was named in the &#8220;<a rel=\"noreferrer noopener\" href=\"https:\/\/gue.com\/blog\/sidemount-andy-davies\/\" target=\"_blank\">Who&#8217;s Who of Sidemount<\/a>&#8221; list by GUE InDepth Magazine.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center has-palette-color-7-color has-vivid-red-background-color has-text-color has-background has-link-color wp-elements-dd81a6de961563c5bf17302e4376cbd2\"><span class=\"ez-toc-section\" id=\"Purchase-my-exclusive-diving-ebooks\"><\/span>Purchase my exclusive diving ebooks!<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/buymeacoffee.com\/andydavistech\/e\/233191\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"652\" height=\"1024\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/03\/Gas-Management-Book-Cover-Image-652x1024.jpg\" alt=\"Gas Management For Scuba Divers Book\" class=\"wp-image-26264\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/03\/Gas-Management-Book-Cover-Image-652x1024.jpg 652w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/03\/Gas-Management-Book-Cover-Image-191x300.jpg 191w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/03\/Gas-Management-Book-Cover-Image-768x1206.jpg 768w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/03\/Gas-Management-Book-Cover-Image-96x150.jpg 96w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/03\/Gas-Management-Book-Cover-Image.jpg 794w\" sizes=\"(max-width: 652px) 100vw, 652px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/buymeacoffee.com\/andydavistech\/e\/233171\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"652\" height=\"1024\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/Shearwater-Gradient-Factors-ebook-652x1024.jpg\" alt=\"Become A Shearwater Power User Book\" class=\"wp-image-26382\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/Shearwater-Gradient-Factors-ebook-652x1024.jpg 652w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/Shearwater-Gradient-Factors-ebook-191x300.jpg 191w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/Shearwater-Gradient-Factors-ebook-768x1206.jpg 768w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/Shearwater-Gradient-Factors-ebook-978x1536.jpg 978w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/Shearwater-Gradient-Factors-ebook-95x150.jpg 95w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/Shearwater-Gradient-Factors-ebook.jpg 1200w\" sizes=\"(max-width: 652px) 100vw, 652px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/buymeacoffee.com\/andydavistech\/e\/111242\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"652\" height=\"1024\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/COVER-IMAGE-652x1024.jpg\" alt=\"\" class=\"wp-image-26656\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/COVER-IMAGE-652x1024.jpg 652w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/COVER-IMAGE-191x300.jpg 191w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/COVER-IMAGE-768x1206.jpg 768w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/COVER-IMAGE-96x150.jpg 96w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/COVER-IMAGE.jpg 794w\" sizes=\"(max-width: 652px) 100vw, 652px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/buymeacoffee.com\/andydavistech\/e\/262907\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"652\" height=\"1024\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/07\/BPW-Book-Cover-Image-652x1024.jpg\" alt=\"A Comprehensive Guide to Backplate &amp; Wing BCDs\" class=\"wp-image-26808\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/07\/BPW-Book-Cover-Image-652x1024.jpg 652w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/07\/BPW-Book-Cover-Image-191x300.jpg 191w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/07\/BPW-Book-Cover-Image-768x1206.jpg 768w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/07\/BPW-Book-Cover-Image-96x150.jpg 96w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/07\/BPW-Book-Cover-Image.jpg 794w\" sizes=\"(max-width: 652px) 100vw, 652px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/buymeacoffee.com\/andydavistech\/e\/260377\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"652\" height=\"1024\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/The-Path-To-Proficiency-Book-Cover-Image-652x1024.jpg\" alt=\"Diving Psychology The Path to Proficiency: Mental Strategies for Scuba Divers (eBook)\" class=\"wp-image-26633\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/The-Path-To-Proficiency-Book-Cover-Image-652x1024.jpg 652w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/The-Path-To-Proficiency-Book-Cover-Image-191x300.jpg 191w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/The-Path-To-Proficiency-Book-Cover-Image-768x1206.jpg 768w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/The-Path-To-Proficiency-Book-Cover-Image-96x150.jpg 96w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/The-Path-To-Proficiency-Book-Cover-Image.jpg 794w\" sizes=\"(max-width: 652px) 100vw, 652px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n<p id=\"rop\"><small>Originally posted 2019-02-22 12:12:32. <\/small><\/p>","protected":false},"excerpt":{"rendered":"<p>There are three governing factors which determine how deep can you dive using air. Understanding those factors promotes safe gas selection.<\/p>\n","protected":false},"author":2,"featured_media":15128,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1825],"tags":[181,788,306,332,67,62,194,331],"class_list":["post-15087","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-scuba-diving-safety","tag-deep-diving-techniques","tag-gas-density-recommendations-for-scuba-diving","tag-inert-gas-narcosis-diving","tag-oxygen-in-scuba-diving","tag-scuba-diving-depth","tag-scuba-diving-gasses","tag-scuba-diving-limits","tag-scuba-diving-oxygen-toxicity"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":6}},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How Deep Can You Dive Using Air?<\/title>\n<meta name=\"description\" content=\"There are three governing factors which determine how deep can you dive using air. 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