The quality of Pella® - The features you desire When you install Pella® products, you’re not only receiving their superior quality and durability, you’re receiving the benefits of a company committed to protecting the environment. All Pella products meet or exceed ENERGY STAR® certification in all 50 states, making your space both comfortable and efficient. Many Pella products also feature allergen reduction technology to give you protection from dust, pet dander and other allergens. As a result, you will enjoy 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 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 Reducing allergens in your home Reducing allergens in your home Our between-the-glass window fashions can drastically reduce the allergens in your home. Pella’s one-of-a-kind technology is available on numerous Pella windows and even some of our doors. Explore this page to find out just how much cleaner your air could be with Pella. More about Allergen Reduction Schedule Now!