<div class='ui dimmer modals page' style='display: none;'><div id='helpie-password-modal' class='pauple_helpie ui modal small' style='display: none;'><div class='ui header'><i class='circular lock icon'></i> Password Protected</div><div class='item-content'><br /><label for='password_check'>Enter Password : </label><p><input type='password' id='password_check' name='password_check' class='password' value='' required></p></div><div class='actions'><div class='ui black deny button'>Nope</div><div class='ui positive right labeled icon button'>Yep, that's right!<i class='checkmark icon'></i></div></div><div class='clear'></div></div></div>{"id":5178,"date":"2020-09-17T12:22:38","date_gmt":"2020-09-17T04:22:38","guid":{"rendered":"https:\/\/smartairfilters.com\/learn\/?post_type=pauple_helpie&#038;p=5178"},"modified":"2020-09-17T12:22:38","modified_gmt":"2020-09-17T04:22:38","slug":"best-way-tell-check-hepa-filter-replace","status":"publish","type":"pauple_helpie","link":"https:\/\/smartairfilters.com\/learn\/smart-air-knowledge-base\/best-way-tell-check-hepa-filter-replace\/","title":{"rendered":"What&#8217;s the Best Way To Tell When a HEPA Filter Needs Replacing?"},"content":{"rendered":"<div class='breadcrumbs pauple_helpie_breadcrumbs'><a class='mainpage-link' href='https:\/\/smartairfilters.com\/learn\/'>Knowledge Base<\/a> <span class='helpiekb_separator'> &nbsp;&nbsp; <i class='fa fa-angle-right' aria-hidden='true'><\/i>&nbsp;&nbsp;<\/span><a class='mainpage-link' href='https:\/\/smartairfilters.com\/learn\/cat\/protecting-yourself\/'>Protecting Yourself<\/a> <span class='helpiekb_separator'> &nbsp;&nbsp; <i class='fa fa-angle-right' aria-hidden='true'><\/i>&nbsp;&nbsp;<\/span><a class='mainpage-link' href='https:\/\/smartairfilters.com\/learn\/cat\/air-purifiers\/'>Air Purifiers<\/a> <span class='helpiekb_separator'> &nbsp;&nbsp; <i class='fa fa-angle-right' aria-hidden='true'><\/i>&nbsp;&nbsp;<\/span><a class='mainpage-link' href='https:\/\/smartairfilters.com\/learn\/smart-air-knowledge-base\/best-way-tell-check-hepa-filter-replace\/'>What's the Best Way To Tell When a HEPA Filter Needs Replacing?<\/a> <\/div><p>Most air purifier companies give &#8216;standard&#8217; numbers for how long their HEPA filters last. Smart Air also provides it for our DIY, Sqair and Blast air purifiers.<\/p>\n<p>However, we hate giving \u201cstandard\u201d numbers on when to change your filter. That&#8217;s because the way people use the purifier, and the environments they&#8217;re used in varies greatly.<\/p>\n<p>The best way to tell when your HEPA filter needs replacing is with a separate <a href=\"https:\/\/smartairfilters.com\/learn\/cat\/air-quality-monitors\/\">air quality monitor<\/a>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/wordpress\/wp-content\/uploads\/sites\/9\/2020\/09\/Combination-of-air-quality-monitors-1024x659.jpg\" alt=\"Combination-of-air-quality-monitors\" width=\"648\" height=\"417\" class=\"aligncenter size-large wp-image-5179\" srcset=\"https:\/\/smartairfilters.com\/wordpress\/wp-content\/uploads\/sites\/9\/2020\/09\/Combination-of-air-quality-monitors-1024x659.jpg 1024w, https:\/\/smartairfilters.com\/wordpress\/wp-content\/uploads\/sites\/9\/2020\/09\/Combination-of-air-quality-monitors-300x193.jpg 300w, https:\/\/smartairfilters.com\/wordpress\/wp-content\/uploads\/sites\/9\/2020\/09\/Combination-of-air-quality-monitors-768x494.jpg 768w, https:\/\/smartairfilters.com\/wordpress\/wp-content\/uploads\/sites\/9\/2020\/09\/Combination-of-air-quality-monitors.jpg 1200w\" sizes=\"auto, (max-width: 648px) 100vw, 648px\" \/><\/p>\n<p>When you first install your air purifier, your air quality monitor should show that your purifier is doing a good job of cleaning your air.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/wordpress\/wp-content\/uploads\/sites\/9\/2020\/09\/air-quality-monitor-indicate-air-purifier-working-well-1024x601.jpg\" alt=\"air quality monitor indicate air purifier working well\" width=\"648\" height=\"380\" class=\"aligncenter size-large wp-image-5180\" srcset=\"https:\/\/smartairfilters.com\/wordpress\/wp-content\/uploads\/sites\/9\/2020\/09\/air-quality-monitor-indicate-air-purifier-working-well-1024x601.jpg 1024w, https:\/\/smartairfilters.com\/wordpress\/wp-content\/uploads\/sites\/9\/2020\/09\/air-quality-monitor-indicate-air-purifier-working-well-300x176.jpg 300w, https:\/\/smartairfilters.com\/wordpress\/wp-content\/uploads\/sites\/9\/2020\/09\/air-quality-monitor-indicate-air-purifier-working-well-768x451.jpg 768w, https:\/\/smartairfilters.com\/wordpress\/wp-content\/uploads\/sites\/9\/2020\/09\/air-quality-monitor-indicate-air-purifier-working-well-1536x902.jpg 1536w, https:\/\/smartairfilters.com\/wordpress\/wp-content\/uploads\/sites\/9\/2020\/09\/air-quality-monitor-indicate-air-purifier-working-well-2048x1203.jpg 2048w\" sizes=\"auto, (max-width: 648px) 100vw, 648px\" \/><\/p>\n<p>However, after some time, the filter will become clogged. This will mean your air purifier is unable to keep the air clean and the air quality monitor will start showing higher numbers. AT this point, it may be time to replace your filter.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/wordpress\/wp-content\/uploads\/sites\/9\/2020\/09\/air-quality-monitor-show-hepa-filter-needs-replacing-1024x644.jpg\" alt=\"air quality monitor show hepa filter needs replacing\" width=\"648\" height=\"408\" class=\"aligncenter size-large wp-image-5181\" srcset=\"https:\/\/smartairfilters.com\/wordpress\/wp-content\/uploads\/sites\/9\/2020\/09\/air-quality-monitor-show-hepa-filter-needs-replacing-1024x644.jpg 1024w, https:\/\/smartairfilters.com\/wordpress\/wp-content\/uploads\/sites\/9\/2020\/09\/air-quality-monitor-show-hepa-filter-needs-replacing-300x189.jpg 300w, https:\/\/smartairfilters.com\/wordpress\/wp-content\/uploads\/sites\/9\/2020\/09\/air-quality-monitor-show-hepa-filter-needs-replacing-768x483.jpg 768w, https:\/\/smartairfilters.com\/wordpress\/wp-content\/uploads\/sites\/9\/2020\/09\/air-quality-monitor-show-hepa-filter-needs-replacing.jpg 1500w\" sizes=\"auto, (max-width: 648px) 100vw, 648px\" \/><\/p>\n<div class='pauple-helpie-module article-voting'><span class='label'>Was this article useful?<\/span><span data-post-id='5178' data-user-id='0' class='icon-tray'><span  data-vote='thumbs up outline' class=' voting-icon thumbs up outline '><i data-content='thumbs up outline' class='thumbs up outline outline icon' aria-hidden='true'><\/i><count>4<\/count><\/span><span  data-vote='thumbs down outline' class=' voting-icon thumbs down outline '><i data-content='thumbs down outline' class='thumbs down outline outline icon' aria-hidden='true'><\/i><count>4<\/count><\/span><\/span><\/div><div style='clear:both;'><\/div>","protected":false},"excerpt":{"rendered":"<p>Knowledge Base &nbsp;&nbsp; &nbsp;&nbsp;Protecting Yourself &nbsp;&nbsp; &nbsp;&nbsp;Air Purifiers &nbsp;&nbsp; &nbsp;&nbsp;What&#8217;s the Best Way To Tell When a HEPA Filter Needs Replacing? Most air purifier companies give &#8216;standard&#8217; numbers for how long their HEPA filters last. Smart Air also provides it for our DIY, Sqair and Blast air purifiers. However, we &#8230; <a title=\"What&#8217;s the Best Way To Tell When a HEPA Filter Needs Replacing?\" class=\"read-more\" href=\"https:\/\/smartairfilters.com\/learn\/smart-air-knowledge-base\/best-way-tell-check-hepa-filter-replace\/\" aria-label=\"Read more about What&#8217;s the Best Way To Tell When a HEPA Filter Needs Replacing?\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","footnotes":""},"helpdesk_category":[673,613],"helpie_tag":[79,1272,76,1271,78,1270],"helpie_add_tag":[],"helpie_up_tag":[],"class_list":["post-5178","pauple_helpie","type-pauple_helpie","status-publish","format-standard","hentry","helpdesk_category-air-purifiers","helpdesk_category-protecting-yourself","helpie_tag-change","helpie_tag-change-filter","helpie_tag-hepa-filter","helpie_tag-new-filter","helpie_tag-replace","helpie_tag-replacement"],"_links":{"self":[{"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/pauple_helpie\/5178","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/pauple_helpie"}],"about":[{"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/types\/pauple_helpie"}],"author":[{"embeddable":true,"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/comments?post=5178"}],"version-history":[{"count":1,"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/pauple_helpie\/5178\/revisions"}],"predecessor-version":[{"id":5182,"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/pauple_helpie\/5178\/revisions\/5182"}],"wp:attachment":[{"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/media?parent=5178"}],"wp:term":[{"taxonomy":"helpdesk_category","embeddable":true,"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/helpdesk_category?post=5178"},{"taxonomy":"helpie_tag","embeddable":true,"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/helpie_tag?post=5178"},{"taxonomy":"helpie_add_tag","embeddable":true,"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/helpie_add_tag?post=5178"},{"taxonomy":"helpie_up_tag","embeddable":true,"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/helpie_up_tag?post=5178"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}