The quality of Pella® - The features you want When you buy Pella® products, you’re not only receiving their superior 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 all states, making your space both comfortable and efficient. Various Pella products also include allergen reduction technology to give you protection from dust, pet dander and other allergens. In turn, 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 you save on your energy bills. More about Energy Efficiency Reducing allergens in your home Reducing allergens in your home Our between-the-glass technology can lead to a drastic allergen reduction in your home. This one-of-a-kind technology is available on lots of Pella windows and even some of our doors. Click on this page to learn just how much cleaner your air could be with Pella. More about Allergen Reduction Schedule Now!