{"id":4477,"date":"2024-04-08T16:51:47","date_gmt":"2024-04-08T08:51:47","guid":{"rendered":"https:\/\/smartairfilters.com\/?p=4477"},"modified":"2024-04-08T16:51:49","modified_gmt":"2024-04-08T08:51:49","slug":"do-air-purifiers-work-window-open","status":"publish","type":"post","link":"https:\/\/smartairfilters.com\/en\/blog\/do-air-purifiers-work-window-open\/","title":{"rendered":"Do Air Purifiers Work With Window Open?"},"content":{"rendered":"

Will my air purifier still work with a window open? Recent test data from Smart Air, air purifiers can still significantly reduce PM2.5 in a room even when a window is slightly cracked. Here’s what you should know:<\/p>\n\n\n\n

<\/p>\n\n\n\n

The Obvious: Air Purifiers Most Effective With Windows Closed<\/h2>\n\n\n\n

No one doubts that purifiers are most effective with the windows closed. That’s obvious. Real-world tests<\/a> show that \u2013 even without an air purifier \u2013 simply keeping doors and windows closed keeps particulate pollution levels at\u00a050% of the level of outdoor air<\/a>.<\/p>\n\n\n\n

But the more practical question is, if I have to keep a window open for some other reason, will running a purifier still work? Will it have a meaningful effect? For some people, keeping windows open is a necessity. You might want to keep your windows open to reduce chemicals such as VOCs and formaldehyde in your home or office. Others might want to keep a window open to ventilate out CO2. In addition, new studies show COVID-19 spread is reduced drastically when both filtration and ventilation are used together<\/a>. <\/p>\n\n\n

\n
\"\"<\/figure><\/div>\n\n\n

The Test: Air Purifier vs. Open Window<\/h3>\n\n\n\n

Can we have it both ways \u2013 clean air AND open windows? CK from the Smart Air team put this question to the test by running the DIY Cannon<\/a> air purifier Smart Air’s 12m2<\/sup><\/span> Beijing test lab six times with the window open and closed.<\/p>\n\n\n

\n
\"DIY<\/figure><\/div>\n\n\n

The effect on indoor air pollution levels of having your window open will be more prominent when outdoor air is hazardous, so\u00a0CK chose two days when outdoor air pollution was bad (February 14th and 15th) for his tests. Beijing\u2019s AQI averaged 239 and 290 during these two days according to the US Embassy<\/a>.<\/p>\n\n\n

\n
\"Pollution<\/figure><\/div>\n\n
\n
\"Outdoor<\/figure><\/div>\n\n\n

To keep the baseline pollution level consistent across tests, CK opened the window to let in outdoor air (and outdoor air pollution) until the particulate pollution was the same as outdoors. Then,\u00a0CK turned the Cannon air purifier on high for 20 minutes. He ran three tests with the windows open and three with the windows closed.<\/p>\n\n\n\n

\"Air<\/figure>\n\n\n\n

Results: Can You Use an Air Purifier with the Window Open?<\/h3>\n\n\n\n

With the window closed, the Cannon air purifier reduced particulate by an average of 90% after 20 minutes (blue lines). With the window open, the Cannon air purifier managed a 60% reduction (red lines).<\/p>\n\n\n

\n
\"Window<\/figure><\/div>\n\n\n

The data shows that it\u2019s clearly better to close the windows while running your air purifier. No shocker there!<\/p>\n\n\n\n

But here\u2019s the more interesting part: even with the windows open<\/strong>, it\u2019s still possible to significantly reduce indoor particulate by turning on an air purifier.<\/p>\n\n\n

\n
\"Window<\/figure><\/div>\n\n\n

Turning on the air purifier with the window open still reduced pollution levels by 60% within 20 minutes.<\/strong><\/p>\n\n\n\n

How to Use Air Purifier with Window Open<\/h3>\n\n\n\n

The best way to use an air purifier with the window open is to use a purifier that’s rated for a larger area than your room size. We do this in the Smart Air office by using the super-charged Smart Air Blast<\/a>, which cleans up to 130m2<\/sup><\/span>. Here it is kicking butt in Beijing while the window is open.<\/p>\n\n\n

\n
\"Smart<\/figure><\/div>\n\n
\n
\"Blast<\/a>
Check out the powerful Blast and Blast Mini air purifiers<\/a><\/figcaption><\/figure><\/div>\n\n\n
\n\n\n
Bottom Line<\/div>
Bottom Line: Can I Turn on My Purifier and Open a Window? Will the Air Purifier Still Work?<\/div>
\nEven with a window open, air purifiers can work decently and still meaningfully reduce particulate air pollution in the home \u2013 by 60% in 20 minutes in our tests. Obviously closing the windows is the most effective, but if you have to balance outdoor pollution against VOCs<\/a> or CO2 indoors<\/a>, it is possible to get some ventilation AND significantly reduce pollution.\n<\/div>
Smart Air<\/div><\/div>","protected":false},"excerpt":{"rendered":"

Will my air purifier still work with a window open? Recent test data from Smart Air, air purifiers can still significantly reduce PM2.5 in a room even when a window is slightly cracked. Here’s what you should know: The Obvious: Air Purifiers Most Effective With Windows Closed No one doubts … <\/p>\n

Read more<\/a><\/p>\n","protected":false},"author":2295,"featured_media":30386,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_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":"20657,6631,22029,13492,11976,25621","_relevanssi_noindex_reason":"","footnotes":""},"categories":[17,190],"tags":[283,255,546,355,254,225,545,547,294,200],"class_list":["post-4477","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-air-pollution","category-air-purifiers","tag-air-purifier","tag-cannon","tag-closed","tag-co2","tag-data","tag-health","tag-open","tag-oxygen","tag-vocs","tag-windows","resize-featured-image"],"acf":[],"_links":{"self":[{"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/posts\/4477","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/users\/2295"}],"replies":[{"embeddable":true,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/comments?post=4477"}],"version-history":[{"count":39,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/posts\/4477\/revisions"}],"predecessor-version":[{"id":30388,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/posts\/4477\/revisions\/30388"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/media\/30386"}],"wp:attachment":[{"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/media?parent=4477"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/categories?post=4477"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/tags?post=4477"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}