The quality of Pella® - The features you want When you install Pella® products, you’re not just receiving their superior quality and durability, you’re gaining the benefits of a company with a commitment to protecting the environment. All Pella products meet or exceed ENERGY STAR® certification in every state, making your room both comfortable and efficient. Various Pella products also contain allergen reduction technology to protect you from dust, pet dander and other allergens. Because of this, you will enjoy healthier air for your family to breath. Pella products: superior energy efficiency Pella products: superior 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 strive to create 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 blinds and shades can drastically reduce the allergens in your home. This one-of-a-kind technology is available on numerous Pella windows and even some of our doors. Explore this page to learn the benefits of Pella’s allergen reduction technology. More about Allergen Reduction Schedule Now!