4 ms·

would be about time we HEPA'd everything in health care

• blagie 3y ago
  Why? HEPA doesn't matter unless you have a sealed system. An open door or a cloth curtain means the 99.97% means nothing relative to 99%.
  • scottyah 3y ago
    Isn't the point to have a positive pressure system, so unfiltered air doesn't come in?
    • blagie 3y ago
      A hospital has many rooms, hallways, etc. Which is under positive pressure? If you have two patients, they should both be isolated from each other. Which one gets the higher pressure, and which the lower?
      • deleted 3y ago
        [deleted]