The quality of Pella® - The features you desire When you buy Pella® products, you’re not just receiving their high 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 all 50 states, making your home both comfortable and efficient. Various Pella products also feature allergen reduction technology to give you protection from dust, pet dander and other allergens. As a result, 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 work to provide the most efficient glass options to help reduce your energy bills and consumption. More about Energy Efficiency Reducing allergens in your home Reducing allergens in your home Our between-the-glass technology 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 learn how much Pella technology can affect your air quality. More about Allergen Reduction Schedule Now!