The quality of Pella® - The features you desire When you buy Pella® products, you’re not only receiving their coveted quality and durability, you’re gaining the benefits of a company dedicated to protecting the environment. All Pella products meet or exceed ENERGY STAR® certification in all 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, your home 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 our products are ENERGY STAR® certified in the U.S., and we continuously strive to create 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 drastically reduce the allergens in your home. This one-of-a-kind technology is available on many Pella windows and even some of our doors. View this page to find out the benefits of Pella’s allergen reduction technology. More about Allergen Reduction Schedule Now!