The quality of Pella® - The features you want When you install Pella® products, you’re not only receiving their superior 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 home both comfortable and efficient. Various Pella products also contain allergen reduction technology to provide protection from dust, pet dander and other allergens. As a result, you will have healthier air for your family to breath. Our commitment to energy efficiency Our commitment to energy efficiency We’ve been committed to providing environmentally friendly products since our beginning. Every Pella product is 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 Cleaner air with Pella allergen reduction technology Cleaner air with Pella allergen reduction technology Our between-the-glass technology can drastically reduce 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!