EGSL stops the causes and corrects the effects of three basic areas of contaminants in workplace environments:

Biological contaminants. Excessive concentrations of bacteria, viruses, fungi (including molds), dust mite allergen, animal dander, and pollen.

Chemical pollutants: Tobacco smoke, emissions from products used in the building (e.g., office equipment; furniture, wall and floor coverings; and cleaning and consumer products) accidental spill of chemicals, and gases such as carbon monoxide and nitrogen dioxide, and products of combustion.

Particles. Particles of dust, dirt, liquid or other substances may be drawn into the building from outside and can also be produced by activities that occur in buildings, such as sanding wood or drywall, printing, copying, operating equipment and smoking.

Case study

EGSL was requested to assess the indoor air quality of an office. The majorities of employees in the 20,000 square-foot office reported indoor air quality-related health complaints and were granted a workers’ compensation leave of absence. To start the investigation, EGSL interviewed the office manager, building owner and facilities manager, followed by a visual assessment of the office and the heating, ventilation and air conditioning (HVAC) system. EGSL collected samples to confirm the hypothesis formed during the visual survey, concluding that the lack of P-traps in the air conditioning condensate pipes allowed sewer gases to infiltrate the office. The problem was inexpensively repaired by installing p-traps, and no further indoor air quality complaints were reported.