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 getting the benefits of a company committed to protecting the environment. All Pella products meet or exceed ENERGY STAR® certification in all states, making your home both comfortable and efficient. Various Pella products also include allergen reduction technology to protect you from dust, pet dander and other allergens. As a result, you will have 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 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 lead to a drastic allergen reduction in your home. Pella’s one-of-a-kind technology is available on lots of Pella windows and even some of our doors. Explore this page to discover how much Pella technology can affect your air quality. More about Allergen Reduction Schedule Now!