budleydoright
Member
If it has a single hose exhaust, then it draws air out of the enclosed space over the evaporator coil and out the hose. If it has 2 hoses, it draws air in one to cool the evaporator and exhausts it out the other. How well they are internally sealed has been questioned.
Single hose: totally unsealed
double hose: Supposed to be sealed.
Single hose: totally unsealed
double hose: Supposed to be sealed.