The importance of maintaining acceptable levels of Indoor Air Quality (IAQ) in commercial buildings, is becoming critical to ensure building occupant's health, comfort and productivity. The ASHRAE IAQ standard, describes acceptable indoor air quality as: "Air which a substantial majority of occupants express no dissatisfaction with respect to odor and sensory irritation; and air in which there are not likely to be contaminants at concentrations that are known to pose a health risk".
Why should we be concerned about IAQ?Some reasons are:
The HVAC system has been known for improving air quality for a long time; however, an effective design is key to achieving the best results, otherwise the system itself can represent a source of pollution. Today, a good air conditioning design should focus on not only achieving thermal comfort; but, consider the use of energy, indoor air quality and comfort expectations.
Important HVAC considerations:- Equipment and ductwork must be sized correctly.
Lennox offers a wide range of superior products to improve indoor air quality in commercial and residential applications, such as our Healthy Climate Solutions™ and Lennox Humiditrol technology. In addition, Lennox energy recovery systems increase efficiency, reduce the maximum demand and guarantee optimal moisture values.
* American College of Allergy, Asthma, & Immunology ** American Lung Association