The quality of Pella® - The features you desire When you purchase Pella® products, you’re not just receiving their high quality and durability, you’re gaining the benefits of a company committed to protecting the environment. All Pella products meet or exceed ENERGY STAR® certification in all states, making your room 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. 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 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 drastically reduce the allergens in your home. Our one-of-a-kind technology is available on lots of Pella windows and even some of our doors. View this page to discover the benefits of Pella’s allergen reduction technology. More about Allergen Reduction Schedule Now!