Can you smell strong, lingering odors in a room? Can you hear or feel a building air conditioning or heating system when it’s on? Is the indoor air simply being recirculated or is it property filtered and mixed with an adequate amount of fresh outdoor air?

With the answers to these questions, building occupants, tenants and owners can decide if the environment they’re in is properly ventilated and what they can do to take control of their own environments. Building patron absenteeism and productivity are negatively affected by poor or inadequate ventilation, filtration and thermal health.