Phil says if he breathes in cold air at all he "can't breath". Just from cold air he get's "completely short of breath and have issues". He also claims that his 'weak lungs and throat problems' are genetics ("It's genetics dood") because his mother smoked while she was pregnant and his entire childhood. Despite this Phil says he tried cigarettes in high school. Phil says he 'hates the feeling of having smoke in my lungs', but Phil I thought you lived in the 'Party Dorm Room' and smoked weed and had passed out bitches in your room.
timestamp @ 40m57s
Edit: Phil says his problems get really bad after he turns on his heater for the season and that there's nothing he can do about it. I guarantee you Phil hasn't changed the air filter in his furnace ever. Also you can buy a higher rated filter. There are several things you can do about that.