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Thank you to community members for sending materials to us to test!
Thank you to community members for sending materials to us to test!
Where we keep all the material samples to enable continual testing.
Emily Chang for sending these American made (Austin, TX) Armbrust surgical masks that tests 97% at 0.3um!
Anna Stern for Filti Sample B, coffee filter, Medline ultra soft dry wipes, vintage linen handkerchief, Soom lab mask, & the trendymaddie.etsy.com mask.
Amy Wong for the Sellar's Shop Towels.
Eli. K. Coughlin-Galbraith & EZ Wallace for the numerous DIY cloth material.
Mindy Hoepner Sanders for the Wypall L40.
Miranda Pak for the Zep Shop Towels.
Philip Sun & Chia-Ju Li for various surgical masks.
Paul Tang for the Costco high performing FLTR95 mask & Merv-13.
R.M for the Scott Shop Towels.
Stephanie Bartlett for the Halyards.
Sarah Holtgrewe for the electrostatic topline dry floor mop wipe, chiffon, polypropelene, and other material.
Sarah Richards for the Filti Sample A.
Stefan Welker for the vacuum bag, tempo napkin, & deer flannel.
Anonymous donors for KN95s, PM2.5s, Wypall x80, ...
Thank you to Jason Tongbai for testing 3 of the same material we had, getting similar results as us, thereby showing our particle counter was showing similar results as his counter.
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