The quality of Pella® - The features you need When you purchase Pella® products, you’re not solely receiving their superior quality and durability, you’re receiving the benefits of a company dedicated 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 include allergen reduction technology to provide protection from dust, pet dander and other allergens. As a result, you will enjoy 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 our products are ENERGY STAR® certified in the U.S., and we continuously strive to create 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 lead to a drastic allergen reduction in your home. Our one-of-a-kind technology is available on lots of Pella windows and even some of our doors. Click on this page to discover just how much cleaner your air could be with Pella. More about Allergen Reduction Schedule Now!