when you say you avoid smoke, do you think people should wear masks even without covid?

Question: when you say you avoid smoke, do you think people should wear masks even without covid?
- Keywords:
  health,
  mask,
  smoke
Asked by annaoc to Konstantin on 3 Mar 2021.
- Konstantin Grygoryev answered on 3 Mar 2021: last edited 3 Mar 2021 10:25 am
  
  Haha, nope! This is to do with lasers! Generally, you cannot see a laser beam travelling through the air. Which means you have to be extra careful when using mirrors with the lasers. You can accidentally reflect a laser at something that burns easily such as paper or plastic and potentially start a fire, or just create some smoke in the lab!

annaoc commented on 3 Mar 2021:

how did you come up with the idea to use light to diagnose illnesses?

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Question: when you say you avoid smoke, do you think people should wear masks even without covid?