• Testing & Analytical Services
• Microanalysis & Microscopy
• PM 2.5 Chemical Speciation
• Microbiology Research & Services
• Cleanroom Products Testing Services
• Pesticide Registration Support
• Forensic Science Services
• Air Filter & Air Cleaner Testing
• Protective Clothing Testing
• Trace Contaminant Testing

Air Filter and Air Cleaner Testing

Our experts in aerosol filtration, gas adsorption, and microbiology offer unmatched capabilities to evaluate the efficiency of air cleaning equipment in removing particulate, gas, and bioaerosol contaminants. We work with filter manufacturers and users, testing air cleaners ranging from the common furnace filter to high-efficiency filters used in hospitals. Our extensive facilities combine modern test ducts with state-of-the-art aerosol, gas, and microbiological generation and measurement equipment.

Through programs with the American Society of Heating, Refrigeration, and Air Conditioning Engineers (ASHRAE) and the U.S. Environmental Protection Agency, we developed the fractional filtration efficiency methods that served as the basis for the new ASHRAE 52.2 standard. Similarly, we currently research the development of standardized laboratory methods for testing air cleaners against gas-phase and bioaerosol contaminants.

Testing Services  PDF

• ASHRAE 52.2 (sample ASHRAE 52.2 test report)
• ASHRAE 52.2 variations
• Conditioning tests
• EPA Method 319 (and modified Method 319)
• Gas-phase air cleaner tests (sample gas-phase air cleaner test report)
• Swatch, fabric, and media tests (sample swatch test penetration report)