The quality of Pella® - The features you desire When you purchase Pella® products, you’re not solely receiving their coveted quality and durability, you’re getting the benefits of a company dedicated to protecting the environment. All Pella products meet or exceed ENERGY STAR® certification in all states, making your space both comfortable and efficient. Many Pella products also feature allergen reduction technology to protect you from dust, pet dander and other allergens. Because of this, you will have 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 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 technology can greatly cut down the allergens in your home. This one-of-a-kind technology is available on numerous Pella windows and even some of our doors. Click on this page to learn how much Pella technology can affect your air quality. More about Allergen Reduction Schedule Now!