The quality of Pella® - The features you need When you buy Pella® products, you’re not just receiving their high quality and durability, you’re gaining the benefits of a company dedicated to protecting the environment. All Pella products meet or exceed ENERGY STAR® certification in every state, making your room both comfortable and efficient. Many Pella products also contain allergen reduction technology to give you protection from dust, pet dander and other allergens. Because of this, your home 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. 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 Cleaner air with Pella allergen reduction technology Cleaner air with Pella allergen reduction technology Our between-the-glass window fashions can greatly cut down the allergens in your home. Our one-of-a-kind technology is available on numerous Pella windows and even some of our doors. Click on this page to discover how much Pella technology can affect your air quality. More about Allergen Reduction Schedule Now!