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I wear my #N95 at the gym every day, 2 fans running on high, doors open, window open, & CO2 reading under 550. It's not hard. I do it because I don't know who was here before me, or if they were sick. 😷 Haters ask: "ArE yOu GoInG tO WeAr a MaSk FoReVerR?" Here is my answer: 
I still wear a seatbelt more than 3 yrs after it became law. Still don't smoke indoors more than 3 yrs after it became law. Still use condoms more than 3 yrs after the HIV/AIDS crisis began. Still only drink clean water, still wear sunscreen when out in the sun. So do you!
😷 "ArE yOu GoInG tO WeAr a MaSk FoReVerR?" haters ask. Nope! But I will wear a #respirator. And I'll keep doing it until we legislate #CleanAir indoors everywhere. I'll keep using HEPAs, and condoms, and SPF, and drinking clean water, and wearing a seatbelt. It's not hard.
And we will not be doing things like this ⬇️ any time soon (unless cases have dropped dramatically and rooms like this are outfitted with 20x HEPAs running on high):
https://twitter.com/ImmunologyAAI/status/1658114124218245120
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