The quality of Pella® - The features you want When you buy Pella® products, you’re not just receiving their coveted 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 every state, making your space both comfortable and efficient. Various Pella products also feature allergen reduction technology to protect you from dust, pet dander and other allergens. Because of this, your home will have healthier air for your family to breath. Our commitment to energy efficiency Our commitment to energy efficiency Pella has been around for more than 80 years, and we’ve always been committed to the environment. Every Pella product is ENERGY STAR® certified in the U.S., and we continuously are working to develop 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 greatly cut down the allergens in your home. Our one-of-a-kind technology is available on many 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!