Decrease exposure to this odorless, radioactive gas found in all buildings and homes. It is the number one cause of lung ­cancer amongst non-smokers but can be managed with long-term, continuous monitoring.

TVOCs are odors and chemicals emitted from many everyday products, including cleaners, paints and furniture, cosmetics, hobby products, cooking and even human breath.

CO₂ is an invisible gas that ­comes from human breath. It can ­cause headaches, restlessness and drowsiness as well as ­affect ­decision-making skills. High ­levels are correlated to low productivity, absenteeism and infectious disease transmission.

Too much or too little humidity can affect allergies, asthma and cold or flu symptoms. When humidity levels are too high, mold and rot will occur. Low humidity levels cause static electricity, dry skin and hair, and increased susceptibility to colds and respiratory illness.

Indoor temperatures can affect performance, mood and comfort level. Individual sleep patterns are also affected by indoor air temperature.

Barometric pressure is the ­pressure given by the ­ atmosphere at any given point. It is known as the “weight of the air” and changes depending on your elevation, as well as weather patterns.