The quality of Pella® - The features you desire When you install Pella® products, you’re not solely receiving their superior quality and durability, you’re receiving the benefits of a company committed to protecting the environment. All Pella products meet or exceed ENERGY STAR® certification in every state, making your space 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 products: superior energy efficiency Pella products: superior energy efficiency Pella has been around for more than 80 years, and we’ve always been committed to the environment. 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 you save 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. Pella’s one-of-a-kind technology is available on many Pella windows and even some of our doors. Explore this page to learn just how much cleaner your air could be with Pella. More about Allergen Reduction Schedule Now!