Indoor air quality (IAQ) refers to the physical, chemical, and biological characteristics of air in the indoor environment within a home, office building, an institution or commercial facility. IAQ can be influenced by many factors including the following:
 · Contamination within the building (e.g., fabric furnishings, carpet, adhesives, fresh paint, new paneling, and
   cleaning products; ozone from office equipment).
 · Contamination from outside the building (e.g., ozone, carbon monoxide, and particulate matter) through air
   intakes,infiltration, open doors, and windows.
 · Microbial contamination of ventilation systems.

IAQ contributes to productivity, comfort, and a sense of health and well being in an indoor environment. A study conducted by the U.S. Environmental Protection Agency (EPA) found that indoor exposure to harmful air pollutants could be up to 100 times greater than outdoors. The EPA now classifies indoor air quality as one of our most important environmental concerns. While medical science has made great strides in developing medications to treat allergic reactions caused by poor IAQ, health professionals generally recommend reducing or eliminating exposure over merely treating symptoms.

Researches showed that more than 70% of all indoor air quality problems involve the operation and/or maintenance of HVAC systems. Like any other part of a home or building, dirt, dust and other particulates can accumulate on system components and in ductwork. Studies also have shown that even a thin coating of dirt and dust on critical HVAC components can significantly reduce energy efficiency.

MSI provides a wide spectrume of IAP control including testing, assessment, remediation and restoration IAQ. MSI has provided comprehensive IAP control service for residential, commercial office building, schools and hospital.

MSI approach to indoor air pollution control:
 · Perform IAQ test Identify sources generating IAP
 · Recommend cost time efficient solutions
 · Assist with developing plans to eliminate existing and future IAP

Resources:
 · Inside Story: A Guide to Indoor Air Quality (Environmental Protection Agency, Indoor Environments Division)
 · Is Air Quality a Problem in My Home? (American Industrial Hygiene Association)
 · School Indoor Air Quality Best Management Practices Manual (Washington State Department of Health, Office of
   Environmental Health and Safety)