For over 30 years, the drive for building energy efficiency has taken priority over indoor environmental quality. With COVID-19, the pendulum swung in the direction of indoor environmental quality. Now, in the "new normal" post COVID, we must solve for both indoor environmental quality and energy efficiency at the same time. Given the health, economic, and climate crises we face, it would be irresponsible not to do so. But how do we do we solve for these seemingly contradictory goals of better indoor air quality and more energy efficiency? The answer lies in applying ASHRAE’s performance-based Indoor Air Quality Procedure (IAQP) with advanced filtration technology to deliver better indoor air quality more efficiently with less outside air ventilation. This approach reduces the need for energy-intensive heating and cooling of outside air and is similar to the approach NASA and the U.S. Navy use in spaceships and submarines where outside air ventilation is impossible. Instead, NASA and the Navy use adsorbent filters that capture CO₂ and other contaminants from return air so that indoor air can be safely recirculated. Join this session to learn how this same approach can be applied in commercial buildings to deliver better indoor air quality more efficiently.