The quality of Pella® - The features you need When you buy Pella® products, you’re not solely receiving their high quality and durability, you’re gaining 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. Various Pella products also contain 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 Pella has been around for more than 80 years, and we’ve always been committed to the environment. All Pella windows and doors 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 Reducing allergens in your home Reducing allergens in your home Our between-the-glass blinds and shades can drastically reduce the allergens in your home. Pella’s one-of-a-kind technology is available on lots of Pella windows and even some of our doors. View this page to learn just how much cleaner your air could be with Pella. More about Allergen Reduction Schedule Now!