Your joking right, it’s level 3 at best, fatality rate is 1%-3-4%. Mostly elderly. Ebola has a fatality rate of 25-80-90% kills all age groups, you need immediate and aggressive treatment to stand a chance. Ya corona isn’t even close it’s just over hyped. Is it highly contagious yes, but not really as fatal as the media likes to portray. Yes it’s killing but it’s killing mostly the elderly and already sick individuals, which makes sense especially when your old and your lungs aren’t working as they used to. Ebola will wipe out entire families, babies, old, and young adults.
It's their air supply line, upholds positive pressure and gives air supply, as for exhalation, there's a valve on the suit that allows waste air out without letting laboratory air in.