Our Services Include: Complete HVAC System Surveys for Air Filtration Service. Indoor Air Quality Testing and Remediation. Clean Room Testing and Certification. Controlling indoor air quality often involves integrating three main strategies: Managing the sources of pollutants through physical barriers, air pressure relationships, or by controlling the timing of their use. Diluting or removing pollutants from the building through ventilation systems. The use of filtration systems to capture and remove air pollutants.