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
- ASHRAE 52.2 (sample test report)
- ASHRAE 52.2 variations (initial efficiencies, partial dust loads, alternate dusts, etc.)
- Nanoparticle efficiency tests (sample nanoparticle and conditioning report)
- Conditioning tests (KCl, IPA dip/spray/vapor)
- EPA Method 319 (and modified Method 319) (sample test report)
- ASHRAE 145.2 gas-phase air cleaner test
- Modified ASHRAE 145.2 gas-phase air cleaner tests (sample test report)
- ASHRAE 185 single pass bioaerosol removal tests
- ASHRAE 185 variations (sample test report)
- In-room, gas-phase air cleaner test (sample test report)
- Swatch, fabric, and media tests (sample test report)
Focus Areas
- Ventilation filters
- Gaseous contaminant air cleaners
- Biocide-treated media
- Paint overspray arrestors
- Aerosol filtration
- Gas adsorption
- Nanoparticle generation and testing
Capabilities
- Standard and custom testing
- Methods development
- Standards development
- Independent, unbiased, confidential, third-party product assessments