The quality of Pella® - The features you need When you buy Pella® products, you’re not only receiving their high 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 50 states, making your room both comfortable and efficient. Numerous Pella products also contain allergen reduction technology to give you protection from dust, pet dander and other allergens. As a result, you will have 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 our products 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 Innovation to reduce allergens in your home Innovation to reduce allergens in your home Our between-the-glass window fashions can greatly cut down the allergens in your home. Our one-of-a-kind technology is available on numerous Pella windows and even some of our doors. View this page to learn the benefits of Pella’s allergen reduction technology. More about Allergen Reduction Schedule Now!