The quality of Pella® - The features you need When you install Pella® products, you’re not solely receiving their coveted quality and durability, you’re receiving 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 space both comfortable and efficient. Numerous Pella products also include 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. Every Pella product is ENERGY STAR® certified in the U.S., and we continuously work to provide the most efficient glass options to help you save on your energy bills. More about Energy Efficiency Cleaner air with Pella allergen reduction technology Cleaner air with Pella allergen reduction technology 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. Click on this page to find out how much Pella technology can affect your air quality. More about Allergen Reduction Schedule Now!