Dr Satoshi Akima FRACP 『秋間聰』 on Twitter: "The 3M Aura (9322+ P2) N95 mask with expiration valve. Your best choice for outdoor exercise. Another mask review…🧵 https://t.co/6Uf963MkC7" / Twitter
Possible Alternatives to Surgical Filtering Facepiece Respirators: Healthcare
Exclusive: Investigation launched into retailer of 'coronavirus face masks' sold via Amazon
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.
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.