Eric Feigl-Ding
@DrEricDing
Epidemiologist & health economist. Fmr 16 yrs @Harvard. Faculty @NECSI & @TheWHN. Health alerts—https://t.co/eNp7gjyhC0 SUBSCRIBE: https://t.co/I6xZVmz79l
10-01-2009 11:01:33
70,1K Tweets
785,1K Followers
12,1K Following
12) While you can order premium masks like KN95 & KF94 online (Eg Amazon), I don’t know which are fakes / real. That said, KN95’s also sold in stores like Staples Stores. Hopefully they vetted their products for authenticity. That’s also why I double mask—in case one is fake.