3M™ Aura™ Particulate Respirator 9211+/37193(AAD), N95 120 EA/Case | 3M United States
Nafnlaus 🇮🇸🇺🇦 on Twitter: "Thread: Mask Fit Testing This evening, I decided to put all of my masks to a proper qualitative fit test using a nebulizer, bitrex solution, and improvised hood.
My top ffp2/ffp3 mask list : r/Masks4All
Possible Alternatives to Surgical Filtering Facepiece Respirators: Healthcare