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 50 states, making your home both comfortable and efficient. Various Pella products also contain allergen reduction technology to give you protection from dust, pet dander and other allergens. As a result, you will enjoy healthier air for your family to breath. Our commitment to energy efficiency Our commitment to 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 work to provide the most efficient glass options to help reduce your energy bills and consumption. More about Energy Efficiency Cleaner air with Pella allergen reduction technology Cleaner air with Pella allergen reduction technology Our between-the-glass technology can greatly cut down the allergens in your home. This one-of-a-kind technology is available on many Pella windows and even some of our doors. Explore this page to learn the benefits of Pella’s allergen reduction technology. More about Allergen Reduction Schedule Now!