The quality of Pella® - The features you need When you buy Pella® products, you’re not solely receiving their superior quality and durability, you’re receiving the benefits of a company committed to protecting the environment. All Pella products meet or exceed ENERGY STAR® certification in all states, making your home both comfortable and efficient. Many Pella products also contain allergen reduction technology to provide protection from dust, pet dander and other allergens. Because of this, you will have healthier air for your family to breath. Pella products: superior energy efficiency Pella products: superior energy efficiency Our commitment to the environment has been around just about as long as our business. All Pella windows and doors are ENERGY STAR® certified in the U.S., and we continuously strive to create the most efficient glass options to help reduce your energy bills and consumption. More about Energy Efficiency Reducing allergens in your home Reducing allergens in your home Our between-the-glass window fashions can drastically reduce the allergens in your home. Pella’s one-of-a-kind technology is available on many Pella windows and even some of our doors. Click on this page to discover the benefits of Pella’s allergen reduction technology. More about Allergen Reduction Schedule Now!