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Jeff Cliff (jeffcliff@shitposter.club)'s status on Wednesday, 25-Oct-2023 10:25:09 JST Jeff Cliff Do they work 100%? no. but yes especially n95+ masks do help. https://www.theguardian.com/world/2023/aug/24/lockdowns-face-masks-unequivocally-cut-spread-covid-study-finds