The quality of Pella® - The features you need When you buy Pella® products, you’re not just receiving their superior 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 50 states, making your home both comfortable and efficient. Various Pella products also contain allergen reduction technology to provide protection from dust, pet dander and other allergens. As a result, you will have healthier air for your family to breath. Pella’s dedication to energy efficiency Pella’s dedication 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 save energy and save you money on your energy bills. More about Energy Efficiency Innovation to reduce allergens in your home Innovation to reduce allergens in your home Our between-the-glass window fashions can lead to a drastic allergen reduction in your home. Pella’s one-of-a-kind technology is available on lots of Pella windows and even some of our doors. Explore this page to find out how much Pella technology can affect your air quality. More about Allergen Reduction Schedule Now!