The quality of Pella® - The features you want When you buy Pella® products, you’re not only receiving their high quality and durability, you’re getting the benefits of a company with a commitment to protecting the environment. All Pella products meet or exceed ENERGY STAR® certification in every state, making your space both comfortable and efficient. Numerous Pella products also contain allergen reduction technology to protect you from dust, pet dander and other allergens. As a result, 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 are working to develop the most efficient glass options to help save energy and save you money on your energy bills. More about Energy Efficiency Cleaner air with Pella allergen reduction technology Cleaner air with Pella allergen reduction technology Our between-the-glass blinds and shades can greatly cut down the allergens in your home. Our one-of-a-kind technology is available on many Pella windows and even some of our doors. Explore this page to discover just how much cleaner your air could be with Pella. More about Allergen Reduction Schedule Now!