Submissions from smartairfilters.com

		What Time of Day Is Air Pollution (PM 2.5) Lowest? (smartairfilters.com)
		2 points by tenkabuto on Aug 29, 2020 \| past
		Best Materials for DIY Masks (smartairfilters.com)
		2 points by pama on April 2, 2020 \| past
		[flagged] Results: Two dishtowels can be as effective as an n95 mask (smartairfilters.com)
		18 points by dr_dshiv on March 28, 2020 \| past \| 10 comments
		What Are the Best Materials for Making DIY Masks? (smartairfilters.com)
		1 point by joe_the_user on March 21, 2020 \| past
		What Are the Best Materials for Making DIY Masks? (smartairfilters.com)
		2 points by mhb on March 19, 2020 \| past
		Can DIY homemade masks protect us from coronavirus (smartairfilters.com)
		4 points by akbarnama on March 13, 2020 \| past
		Smart Air Filters India – Affordable Air Purifiers in India (smartairfilters.com)
		2 points by SkyRocknRoll on Dec 29, 2015 \| past
		Smart Air DIY kits: Now with two fan options (smartairfilters.com)
		1 point by rahimnathwani on Jan 22, 2014 \| past \| 1 comment
		Smart Air (smartairfilters.com)
		231 points by lispython on Nov 2, 2013 \| past \| 91 comments