Reduce your heat bills! When your air conditioner is idle in cold weather, it can rob your home of heat. The solution - seal your air conditioner to prevent heat loss, as well as keep out dirt. Indoor Air Conditioner Cover by Twin Draft Guard allows you to keep your air conditioner installed year round. Stop carting your air conditioners back and forth from storage to install them every year. Quilted cover eliminates dust, dirt, and drafts. Holds snug with safety clasps. Made of machine washable poly cotton.