The reason why you pull off your mask is because it is extremely difficult to run with it on. It will move a lot and smack up and down on your face. It also falls off a lot and you are in danger of tripping over it.
The reason why you pull off your mask is because it is extremely difficult to run with it on. It will move a lot and smack up and down on your face. It also falls off a lot and you are in danger of tripping over it.