The quality of Pella® - The features you need When you purchase Pella® products, you’re not only 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 every state, making your home both comfortable and efficient. Numerous Pella products also contain allergen reduction technology to provide protection from dust, pet dander and other allergens. In turn, your home will have healthier air for your family to breath. Pella products: superior energy efficiency Pella products: superior energy efficiency We’ve been committed to providing environmentally friendly products since our beginning. All our products are ENERGY STAR® certified in the U.S., and we continuously work to provide the most efficient glass options to help save energy and save you money on your energy bills. More about Energy Efficiency Reducing allergens in your home Reducing allergens in your home Our between-the-glass window fashions can greatly cut down the allergens in your home. This one-of-a-kind technology is available on numerous Pella windows and even some of our doors. Explore this page to learn just how much cleaner your air could be with Pella. More about Allergen Reduction Schedule Now!