Take the load off your air conditioner. Have you been in your attic in the summer? It’s HOT, Right? That’s why you need an attic ventilator. An attic ventilator exhausts the hot air from your attic and brings in cooler air from the outside, thus helping your air conditioner cool your home. This air circulation greatly reduces the heat load on your home and allows your air conditioner to work more efficiently and cool your home faster. The Bottom Line: Adding an attic ventilator to your home will save you money and make you more comfortable.