Today we have become more aware of our indoor air quality. Based on the United States Environmental Protection Agency (EPA) indoor air pollution levels can be up to five times higher than outdoor air. Most of your standard air filters can clean these smaller particles from the air. However, high-efficiency air filters greatly reduce the airborne particles. Some high-efficiency can greatly reduce tobacco smoke, airborne bacteria and allergens. A-TEMP specializes in high efficiency filtration systems and can help you decide what option is best for you and your house.