The quality of Pella® - The features you desire When you purchase Pella® products, you’re not just receiving their coveted 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 50 states, making your room both comfortable and efficient. Many Pella products also feature allergen reduction technology to protect you from dust, pet dander and other allergens. In turn, your home will have healthier air for your family to breath. Pella’s dedication to energy efficiency Pella’s dedication to energy efficiency Our commitment to the environment has been around just about as long as our business. Every Pella product is ENERGY STAR® certified in the U.S., and we continuously are working to develop 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 technology can lead to a drastic allergen reduction 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 just how much cleaner your air could be with Pella. More about Allergen Reduction Schedule Now!