{"id":10208,"date":"2021-11-18T03:32:54","date_gmt":"2021-11-18T09:32:54","guid":{"rendered":"https:\/\/www.galmicheandsons.com\/hvac-blog\/?p=10208"},"modified":"2024-08-16T14:12:05","modified_gmt":"2024-08-16T19:12:05","slug":"can-you-run-your-furnace-without-a-filter","status":"publish","type":"post","link":"https:\/\/www.galmicheandsons.com\/hvac-blog\/can-you-run-your-furnace-without-a-filter\/","title":{"rendered":"Can You Run Your Furnace without a Filter? The Answer Should Not Surprise You"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title ez-toc-toggle\" style=\"cursor:pointer\">Table of 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:\/\/www.galmicheandsons.com\/hvac-blog\/can-you-run-your-furnace-without-a-filter\/#Why_Is_It_Dangerous_To_Run_Your_Furnace_Without_a_Filter\" >Why Is It Dangerous To Run Your Furnace Without a Filter?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/can-you-run-your-furnace-without-a-filter\/#It_Affects_Indoor_Air_Quality\" >It Affects Indoor Air Quality<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/can-you-run-your-furnace-without-a-filter\/#Running_Your_Furnace_without_a_Filter_Affects_Health_and_Well-Being\" >Running Your Furnace without a Filter Affects Health and Well-Being<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/can-you-run-your-furnace-without-a-filter\/#Removing_the_Air_Filter_Could_Damage_Your_Furnace\" >Removing the Air Filter Could Damage Your Furnace<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/can-you-run-your-furnace-without-a-filter\/#It_Could_Be_a_Fire_Hazard\" >It Could Be a Fire Hazard<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/can-you-run-your-furnace-without-a-filter\/#Hire_a_Reliable_HVAC_Contractor_for_Your_HVAC_Needs\" >Hire a Reliable HVAC Contractor for Your HVAC Needs<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<p>The air filter in your HVAC system is an annoying attention-seeker, and we all wish we could do without it. Life would be so much easier if you did not have to spend time and money on replacing the air filter every couple of months. But can you run your furnace without a filter? No matter how much we wish for it, the answer is a big NO. There are several reasons to convince you that running your furnace without a filter is a bad idea. We will go deeper into that in the sections that follow.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/wp-content\/uploads\/can-you-run-your-furnace-without-a-filter-1-300x200.jpg\" alt=\"Can You Run Your Furnace without a Filter\" width=\"300\" height=\"200\" class=\"alignleft size-medium wp-image-10260\" srcset=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/wp-content\/uploads\/can-you-run-your-furnace-without-a-filter-1-300x200.jpg 300w, https:\/\/www.galmicheandsons.com\/hvac-blog\/wp-content\/uploads\/can-you-run-your-furnace-without-a-filter-1.jpg 600w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>For all your HVAC maintenance and repair needs, including cleaning and replacing your air filters, you need a reliable <a href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/ask-an-hvac-technician\/\">HVAC technician<\/a>. In St. Louis and the surrounding areas, give the <a href=\"https:\/\/www.galmicheandsons.com\/contact-galmiche.php\">heating and air conditioning<\/a> experts at Galmiche &amp; Sons a call at <span class=\"mobile_tel\"><span class=\"mobile_tel\">314-993-1110<\/span><\/span> to learn how we can help.<\/p>\n<div class=\"clear\"><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Why_Is_It_Dangerous_To_Run_Your_Furnace_Without_a_Filter\"><\/span>Why Is It Dangerous To Run Your Furnace Without a Filter?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The air quality inside your home is important to your health. There is already a lot of pollution and contamination in the outside air. You want to ensure that your family at least has clean air to breathe inside your home. Contaminants can be present in indoor air too. Since the HVAC system will be circulating the same indoor air throughout your house, it is important that these contaminants are filtered out. There may be many allergens and impurities like pet hair, dust, bacteria, and fungi lurking around your house. When the HVAC system sucks in the air to warm up the furnace, these contaminants are sucked in through the vents as well.<\/p>\n<p>The air filter within the furnace prevents these impurities from entering the furnace. It also prevents these impurities from being circulated throughout the house along with the heated air.<\/p>\n<p>Here is why the answer to &ldquo;Can you run your furnace without a filter?&rdquo; is no.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"It_Affects_Indoor_Air_Quality\"><\/span>It Affects Indoor Air Quality<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Without an air filter, the warm air that you receive from the furnace may contain contaminates and allergens. The air filter can trap most of the particulate matter in the air and <a href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/improve-indoor-air-quality-with-furnace-repair\/\">improve indoor air quality<\/a>. Though you might think that the heat from the furnace would destroy most of the contaminants floating in the air, it is not possible. So an air filter with the furnace is indispensable.<\/p>\n<p>Especially if someone in your family has breathing issues like asthma, you should not take a risk removing the air filter.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Running_Your_Furnace_without_a_Filter_Affects_Health_and_Well-Being\"><\/span>Running Your Furnace without a Filter Affects Health and Well-Being<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/wp-content\/uploads\/can-you-run-your-furnace-without-a-filter-2-300x225.jpg\" alt=\"Should You Run a Furnace without a Filter\" width=\"300\" height=\"225\" class=\"alignright size-medium wp-image-10261\" srcset=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/wp-content\/uploads\/can-you-run-your-furnace-without-a-filter-2-300x225.jpg 300w, https:\/\/www.galmicheandsons.com\/hvac-blog\/wp-content\/uploads\/can-you-run-your-furnace-without-a-filter-2.jpg 600w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>For people with allergies and breathing problems, unfiltered air is dangerous any day. But even if no one in your family suffers from such health issues, breathing in contaminated air every day can lead to new illnesses. If pet dander or dust makes its way into your home and floats about in the air, you could develop health issues over time. Bacteria and viruses could also be circulated the same way without an air filter in your HVAC system, compromising your health.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Removing_the_Air_Filter_Could_Damage_Your_Furnace\"><\/span>Removing the Air Filter Could Damage Your Furnace<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Contaminants circulating through the HVAC system could also cause damage to the system. Dust and dirt can accumulate inside the equipment and result in a malfunction or breakdown. Running a furnace without a filter is harmful not just to your health but to the HVAC system&#8217;s health too.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"It_Could_Be_a_Fire_Hazard\"><\/span>It Could Be a Fire Hazard<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Contaminants making their way into the furnace could be flammable. Running your furnace without a filter means that these particles accumulate and may catch fire, posing a risk to safety.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Hire_a_Reliable_HVAC_Contractor_for_Your_HVAC_Needs\"><\/span>Hire a Reliable HVAC Contractor for Your HVAC Needs<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>If you need to get your HVAC system cleaned or the air filter replaced, contact a reliable HVAC contractor. In St. Louis, Galmiche &amp; Sons has been in the HVAC maintenance and repairs business since 1950. Get in touch with our <a href=\"https:\/\/www.galmicheandsons.com\/contact-galmiche.php\">heating and air conditioning<\/a> experts to learn more about how we can help keep your system running efficiently and effectively.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The air filter in your HVAC system is an annoying attention-seeker, and we all wish we could do without it. Life would be so much easier if you did not have to spend time and money on replacing the air filter every couple of months. But can you run your furnace without a filter? No matter how much we wish for it, the answer is a big NO. There are several reasons to convince you that running your furnace without &hellip; <a href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/can-you-run-your-furnace-without-a-filter\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Can You Run Your Furnace without a Filter? The Answer Should Not Surprise You<\/span><\/a><\/p>\n","protected":false},"author":6,"featured_media":10260,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_mbp_gutenberg_autopost":false,"footnotes":""},"categories":[21,27,37,11,10],"tags":[],"class_list":["post-10208","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-air-filter","category-furnace-tips","category-furnace-troubleshooting","category-furnaces","category-indoor-air-quality"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Can You Run Your Furnace without a Filter? | St. Louis HVAC Tips<\/title>\n<meta name=\"description\" content=\"The answer to can you run your furnace without a filter should not surprise you. 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But it is important to learn what the filter does and why it is important.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/can-you-run-your-furnace-without-a-filter\/\" \/>\n<meta property=\"og:site_name\" content=\"St. Louis HVAC Tips - Galmiche &amp; Sons\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/GalmicheAndSons\/\" \/>\n<meta property=\"article:published_time\" content=\"2021-11-18T09:32:54+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-08-16T19:12:05+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/wp-content\/uploads\/can-you-run-your-furnace-without-a-filter-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"600\" \/>\n\t<meta property=\"og:image:height\" content=\"400\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Steve Dulle\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@GalmicheAndSon\" \/>\n<meta name=\"twitter:site\" content=\"@GalmicheAndSon\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Steve Dulle\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.galmicheandsons.com\\\/hvac-blog\\\/can-you-run-your-furnace-without-a-filter\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.galmicheandsons.com\\\/hvac-blog\\\/can-you-run-your-furnace-without-a-filter\\\/\"},\"author\":{\"name\":\"Steve Dulle\",\"@id\":\"https:\\\/\\\/www.galmicheandsons.com\\\/hvac-blog\\\/#\\\/schema\\\/person\\\/b90d5d47a6f393d93d6459a9aa8b2fe1\"},\"headline\":\"Can You Run Your Furnace without a Filter? 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