The quality of Pella® - The features you need When you install Pella® products, you’re not just receiving their superior quality and durability, you’re getting the benefits of a company committed to protecting the environment. All Pella products meet or exceed ENERGY STAR® certification in every state, making your home both comfortable and efficient. Numerous Pella products also contain allergen reduction technology to protect you from dust, pet dander and other allergens. As a result, your home will have healthier air for your family to breath. Our commitment to energy efficiency Our commitment to energy efficiency Pella has been around for more than 80 years, and we’ve always been committed to the environment. Every Pella product is 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 window fashions can lead to a drastic allergen reduction in your home. This one-of-a-kind technology is available on many 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!