Duke University tested different types of masks against droplet protection User 7orly7, in the Novel Coronavirus (COVID-19) subreddit, 08 Jan 2021
Low-cost measurement of face mask efficacy for filtering expelled droplets during speech User antiacela, in the Free-thinkers resisting the New Normal subreddit, 11 Dec 2020
Low-cost measurement of face mask efficacy for filtering expelled droplets during speech User hotpot_ai, in the Reddit Science subreddit, 12 Oct 2020
Low-cost measurement of face mask efficacy for filtering expelled droplets during speech User Jason_Protell, in the Free Karma 4U subreddit, 07 Oct 2020
I found the title of this article shown on Googlen News to be strangely annoying because its just too much. User ravia, in the jukmifgguggh subreddit, 03 Sep 2020
Low-cost measurement of facemask efficacy for filtering expelled droplets during speech User oaf357, in the devopsish subreddit, 17 Aug 2020
Low-cost measurement of facemask efficacy for filtering expelled droplets during speech User objeteh, in the tfatk subreddit, 14 Aug 2020
2020-08-07: Low-cost Measurement of Facemask Efficacy for Filtering Expelled Droplets During Speech by Emma P. Fischer, Martin C. Fischer, David Grass, Isaac Henrion, Warren S. Warren, and Eric Westman (10.1126/sciadv.abd3083) User justanothercap, in the pdfs subreddit, 12 Aug 2020
Study showing bandanas "offer very little protection". There are a lot of uneducated people on this sub, please read this study to find the most effective mask. User Long_DuckDonger, in the Northern Ireland subreddit, 11 Aug 2020
Low-cost measurement of facemask efficacy for filtering expelled droplets during speech User richmondody, in the Novel Coronavirus (COVID-19) subreddit, 11 Aug 2020
I promise I am not being a troll, I read this article and immediately thought about Eagle McMahon. User MalexMcBlat, in the Disc Golf subreddit, 10 Aug 2020
Low-cost measurement of facemask efficacy for filtering expelled droplets during speech User cseamunchkin, in the covid19Oklahoma subreddit, 10 Aug 2020
All masks are not equal! A study on different types of masks and their effectiveness User lifeisagamble01, in the coronaHuntsville subreddit, 10 Aug 2020
All masks are not equal! A study on different types of masks and their effectiveness User frizzypdx, in the Novel Coronavirus (COVID-19) subreddit, 10 Aug 2020
Low-cost measurement of facemask efficacy for filtering expelled droplets during speech User richmondody, in the Masks4All subreddit, 10 Aug 2020
Neck fleece (buff/gators) offer no protection to others against COVID-19. User DrVonKarman, in the Stay up to date regarding COVID-19 within Colorado subreddit, 10 Aug 2020
Low-cost measurement of facemask efficacy for filtering expelled droplets during speech User AidanHockey5, in the Reddit Science subreddit, 09 Aug 2020
Effectiveness of droplet containment by different mask options User Appollon819, in the COVID-19 Discussion subreddit, 09 Aug 2020
Low-cost measurement of facemask efficacy for filtering expelled droplets User PatientModBot, in the patient_hackernews subreddit, 09 Aug 2020
Low-cost measurement of facemask efficacy for filtering expelled droplets User qznc_bot2, in the Hacker News subreddit, 09 Aug 2020
Low-cost measurement of facemask efficacy for filtering expelled droplets User bprogramming, in the Beginner Programming and Tech subreddit, 09 Aug 2020
Low-cost measurement of facemask efficacy for filtering expelled droplets during speech User BlankVerse, in the Reddit Science subreddit, 09 Aug 2020
Low-cost measurement of facemask efficacy for filtering expelled droplets during speech User BlankVerse, in the Everything Science subreddit, 09 Aug 2020
Finally some scientists admitting cloth masks are actually counter-productive and may increase spread. User freshhy88, in the Free-thinkers resisting the New Normal subreddit, 08 Aug 2020
Low-cost measurement of facemask efficacy for filtering expelled droplets during speech User mobo392, in the COVID-19 subreddit, 08 Aug 2020