Average Americans spend nearly 90% of their time indoors. For the infants, the elderly and the urban residents, this percent of time is likely to be higher. Studies show that indoor air pollution can be two to fives times to sometimes 100 times higher than outdoor air pollution. This puts the citizens to a greater risk of contracting various diseases from indoor air pollutants. In fact, the US Environmental Protection Agency, EPA ranks poor indoor air quality one among the top five public health risks. Common diseases and symptoms associated with poor indoor air quality are:
- Breathing Difficulties
In schools, colleges and offices, discomforts from poor indoor air quality promotes absenteeism and loss of working days. Maintaining proper indoor air quality is, therefore, very important for health and productivity. The Heating, Ventilation and Air Conditioning (HVAC) system of a building plays a crucial role in maintaining proper ambience and quality of indoor air. The efficiency of the system in terms of maintaining good indoor air quality and saving energy depends to a large extent on the HVAC Air Filters and their effective functioning. This is making the market demand of the HVAC Air Filters increase steadily and reports indicate that this market is expected to grow with a compound annual growth rate of 4.7% till 2011, posting sales past the $1 billion dollar mark by that time.