The quality of Pella® - The features you want When you purchase Pella® products, you’re not solely receiving their coveted quality and durability, you’re gaining the benefits of a company with a commitment 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 give you protection from dust, pet dander and other allergens. As a result, your home 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 work to provide the most efficient glass options to help you save on your energy bills. More about Energy Efficiency Innovation to reduce allergens in your home Innovation to reduce allergens in your home Our between-the-glass technology can lead to a drastic allergen reduction in your home. This one-of-a-kind technology is available on many Pella windows and even some of our doors. Explore this page to learn how much Pella technology can affect your air quality. More about Allergen Reduction Schedule Now!