3 ms·

N95 masks in particular.

• dehrmann 6y ago
  But someone who regularly wears an N95 mask with a valve might be less likely to contract the virus (because N95), so discouraging use of N95 masks with valves could make the situation worse.
  • danans 6y ago
    N95s are good for protecting the wearer, not so good for protecting others from the wearer. In areas with high infection rates (a lot of the US), the likelihood that someone wearing a mask is infected goes up, thereby making N95s more problematic. Many stores around where I live are requiring N95 wearers to cover up the valves while inside. N95s are better than no mask at all of course, but that's a low bar for comparison.