<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":4714,"date":"2020-06-29T16:22:02","date_gmt":"2020-06-29T08:22:02","guid":{"rendered":"https:\/\/smartairfilters.com\/learn\/?post_type=pauple_helpie&#038;p=4714"},"modified":"2024-03-21T23:50:54","modified_gmt":"2024-03-21T15:50:54","slug":"do-outdoor-purifiers-work","status":"publish","type":"pauple_helpie","link":"https:\/\/smartairfilters.com\/learn\/smart-air-knowledge-base\/do-outdoor-purifiers-work\/","title":{"rendered":"Do Outdoor Purifiers Work?"},"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\/do-outdoor-purifiers-work\/'>Do Outdoor Purifiers Work?<\/a> <\/div><p><span>We have at least a little data on\u00a0<\/span><span class=\"q-inline\"><a class=\"q-box qu-cursor--pointer qu-hover--textDecoration--underline\" title=\"qz.com\" href=\"https:\/\/qz.com\/846093\/chinas-giant-smog-sucking-tower-was-simply-no-match-for-its-air-pollution\/\" target=\"_blank\" rel=\"noopener nofollow noreferrer\">this \u201csmog fighting tower\u201d<\/a><\/span><span>\u00a0designed by a Dutch designer and installed in Beijing and Tianjin.<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/qph.fs.quoracdn.net\/main-qimg-4d582261cad1e7f78e0951d242b649eb\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/qph.fs.quoracdn.net\/main-qimg-0dd6c9bc5dea72182134dd0836ea8412\" \/><\/p>\n<p class=\"q-text qu-display--block\"><span>Looking closer, the modeling has the following issues.<\/span><\/p>\n<ul class=\"q-box\">\n<li class=\"q-relative\"><span>First, these are estimates of PM10\u2014larger particles than the PM2.5 researchers are most worried about. (<\/span><a class=\"q-box qu-cursor--pointer qu-hover--textDecoration--underline\" title=\"www.quora.com\" href=\"https:\/\/www.quora.com\/What-is-the-difference-between-PM2-5-and-PM10-with-respect-to-the-atmospheric-pollutants\/answer\/Thomas-Talhelm\" target=\"_top\" rel=\"noopener noreferrer\">What\u2019s the difference between PM2.5 and PM10?<\/a><span>)<\/span><\/li>\n<li class=\"q-relative\"><span>Second, the estimate assumes \u201cnear-zero wind,\u201d making this the most optimistic estimate possible.<\/span><\/li>\n<li class=\"q-relative\"><span>Finally, you\u2019ll notice that the reductions\u2014even under these ideal conditions\u2014are about 20% at just 10 meters away from the tower. Here\u2019s why that matters. One of the towers is placed in the middle of a sports field in an outdoor track. At 10 meters away, this machine wouldn\u2019t even clean the air for people running on the track around it.<\/span><\/li>\n<\/ul>\n<p><span>The data and modeling on outdoor air purifiers is disappointing. Spending the money on reducing emissions is likely a much better investment. Some ways of doing that are making gasoline cleaner (<\/span><a class=\"q-box qu-cursor--pointer qu-hover--textDecoration--underline\" title=\"qr.ae\" href=\"http:\/\/qr.ae\/TUGta8\" target=\"_top\" rel=\"noopener noreferrer\">like China is doing<\/a><span>) and improving garbage collection so that people stop burning garbage (<\/span><a class=\"q-box qu-cursor--pointer qu-hover--textDecoration--underline\" title=\"qr.ae\" href=\"http:\/\/qr.ae\/TUGtaT\" target=\"_top\" rel=\"noopener noreferrer\">which is a problem in Delhi<\/a><span>).<\/span><\/p>\n<p>Click here to see the original answer on Quora: <a href=\"https:\/\/www.quora.com\/Is-it-possible-to-create-and-mass-produce-a-device-capable-of-filtering-and-cleaning-massive-amounts-of-outdoor-air-to-filter-pollution-and-smog\/answer\/Thomas-Talhelm\">https:\/\/www.quora.com\/outdoor-air-to-filter-pollution-and-smog<\/a><\/p>\n<div class='pauple-helpie-module article-voting'><span class='label'>Was this article useful?<\/span><span data-post-id='4714' 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>1<\/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>0<\/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;Do Outdoor Purifiers Work? We have at least a little data on\u00a0this \u201csmog fighting tower\u201d\u00a0designed by a Dutch designer and installed in Beijing and Tianjin. Looking closer, the modeling has the following issues. First, these are estimates of PM10\u2014larger particles than &#8230; <a title=\"Do Outdoor Purifiers Work?\" class=\"read-more\" href=\"https:\/\/smartairfilters.com\/learn\/smart-air-knowledge-base\/do-outdoor-purifiers-work\/\" aria-label=\"Read more about Do Outdoor Purifiers Work?\">Read more<\/a><\/p>\n","protected":false},"author":4824,"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":[266,1047,909,1221,1220,540,542,1238,537],"helpie_add_tag":[],"helpie_up_tag":[],"class_list":["post-4714","pauple_helpie","type-pauple_helpie","status-publish","format-standard","hentry","helpdesk_category-air-purifiers","helpdesk_category-protecting-yourself","helpie_tag-air-purifier","helpie_tag-big","helpie_tag-efficient","helpie_tag-how-well","helpie_tag-huge","helpie_tag-outdoor","helpie_tag-outside","helpie_tag-quora","helpie_tag-works"],"_links":{"self":[{"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/pauple_helpie\/4714","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\/4824"}],"replies":[{"embeddable":true,"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/comments?post=4714"}],"version-history":[{"count":6,"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/pauple_helpie\/4714\/revisions"}],"predecessor-version":[{"id":5945,"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/pauple_helpie\/4714\/revisions\/5945"}],"wp:attachment":[{"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/media?parent=4714"}],"wp:term":[{"taxonomy":"helpdesk_category","embeddable":true,"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/helpdesk_category?post=4714"},{"taxonomy":"helpie_tag","embeddable":true,"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/helpie_tag?post=4714"},{"taxonomy":"helpie_add_tag","embeddable":true,"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/helpie_add_tag?post=4714"},{"taxonomy":"helpie_up_tag","embeddable":true,"href":"https:\/\/smartairfilters.com\/learn\/wp-json\/wp\/v2\/helpie_up_tag?post=4714"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}