The quality of Pella® - The features you need When you buy Pella® products, you’re not only receiving their coveted quality and durability, you’re receiving the benefits of a company with a commitment to protecting the environment. All Pella products meet or exceed ENERGY STAR® certification in all states, making your home both comfortable and efficient. Numerous Pella products also include allergen reduction technology to provide protection from dust, pet dander and other allergens. As a result, you will enjoy healthier air for your family to breath. Pella’s dedication to energy efficiency Pella’s dedication to energy efficiency We’ve been committed to providing environmentally friendly products since our beginning. 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. Our one-of-a-kind technology is available on many Pella windows and even some of our doors. View this page to find out just how much cleaner your air could be with Pella. More about Allergen Reduction Schedule Now!