If you live in a region that gets a lot of heat, then AC is more than a luxury, it is part of staying healthy. On the other hand, an AC unit can only cycle through so much air at a time and can only cool the air temperature by 15-20˚ at a time. Moreover, if your home has been heating up all day, the residual heat in the structure of your home can still contribute to heat gain for hours after the sun goes down.
Long-haired pets usually end up shedding all over the place. Not only can that hair get caught in your clothes, your vacuum cleaner, and in your food, it can also cause problems when it comes to your HVAC system, too. In fact, your pet's hair can cause one big problem with your furnace or air conditioner.
Filters
There are a series of filters in your furnace and air conditioner, at the air return vent as well as by the outgoing air ducts.
