Great friggin show! I know he has asthma or dust allergies...but, on "Idaho State TB Hospital" episode, season 21 episode 6, about 30-35 minutes into the show there is a close up of him with a mask on...You can see the rubber flap in the mask being sucked in several times...he ought to test his masks before using them. That mask was allowing him to suck in unventilated air...probably not too good for him.