First off: great work! It looks like you’re really serious about building an effective DIY air purifier. Pressure drop data for a HEPA filter can help you find a suitable fan and calculate a rough approximation of the airflow (albeit not CADR) of the purifier.<\/p>\n\n\n\n
Unfortunately, however, we do not have pressure drop values available for our HEPA filters for different airflows and\/or fan configurations. To provide these would require us to test each HEPA filter for different fan and airflow configurations.<\/p>\n\n\n\n
Having said this, a rough approximation is that in our testing, most Smart Air HEPA filters have a pressure drop of between 50-200Pa, depending on the airflow, air duct and how clogged the filter is. This can be used as a rough range to find and size a fan.<\/p>\n\n\n\n
<\/p>\n\n\n\n
Learn more: what’s the difference between the airflow and CADR of an air purifier?<\/a><\/p>\n\n\n\n <\/p>\n Knowledge Base Protecting Yourself Air Purifiers Do You Have Pressure Drop Data Available for your HEPA Filters? First off: great work! It looks like you’re really serious about building an effective DIY air purifier. Pressure drop data for a HEPA filter can help you find a suitable … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"menu_order":0,"comment_status":"closed","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],"helpie_tag":[266,239,145,75,515,1339],"helpie_add_tag":[],"helpie_up_tag":[],"class_list":["post-5636","pauple_helpie","type-pauple_helpie","status-publish","format-standard","hentry","helpdesk_category-air-purifiers","helpie_tag-air-purifier","helpie_tag-airflow","helpie_tag-cadr","helpie_tag-hepa","helpie_tag-pressure","helpie_tag-pressure-drop"],"_links":{"self":[{"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/pauple_helpie\/5636","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=5636"}],"version-history":[{"count":1,"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/pauple_helpie\/5636\/revisions"}],"predecessor-version":[{"id":5637,"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/pauple_helpie\/5636\/revisions\/5637"}],"wp:attachment":[{"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/media?parent=5636"}],"wp:term":[{"taxonomy":"helpdesk_category","embeddable":true,"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/helpdesk_category?post=5636"},{"taxonomy":"helpie_tag","embeddable":true,"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/helpie_tag?post=5636"},{"taxonomy":"helpie_add_tag","embeddable":true,"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/helpie_add_tag?post=5636"},{"taxonomy":"helpie_up_tag","embeddable":true,"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/helpie_up_tag?post=5636"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}