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 receiving 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. Numerous Pella products also feature allergen reduction technology to provide protection from dust, pet dander and other allergens. As a result, 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. 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 save energy and save you money 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 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. Click on this page to find out just how much cleaner your air could be with Pella. More about Allergen Reduction Schedule Now!