The quality of Pella® - The features you want When you buy Pella® products, you’re not only receiving their high quality and durability, you’re gaining the benefits of a company dedicated to protecting the environment. All Pella products meet or exceed ENERGY STAR® certification in all states, making your room both comfortable and efficient. Many Pella products also contain allergen reduction technology to provide protection from dust, pet dander and other allergens. Because of this, your home 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 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 you save 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 technology can drastically reduce the allergens in your home. Our one-of-a-kind technology is available on many Pella windows and even some of our doors. Click on this page to learn the benefits of Pella’s allergen reduction technology. More about Allergen Reduction Schedule Now!