Learning More About Air Curtains Could Save & Earn You More Money Some new and innovative ways to use air curtains and other technologies are helping businesses gather more sales and store traffic. These large, yet not cumbersome devices can help keep comfortable air in. At the same time, they help block outside weather, insects, and vehicle fumes. The application here is to be able to keep your doors open all year round. Keeping your front doors literally open, help to create a more...