A purifier's real performance lives in the room, not on the spec sheet. So we test the whole device under chamber conditions, not just its filter media. The standards we work to (ISO 17025, ANSI/AHAM AC-1, ISO 16890, ASHRAE 241, ISO 16000, UL 867) shape how we run CADR, filtration, bioaerosol, VOC, ozone, and by-product studies for development, claims, and documentation when:
- CADR testing under ANSI/AHAM AC-1 and ISO 29462 compares smoke, dust, or pollen surrogate removal across fan speeds and quiet modes.
- Filtration efficiency studies aligned to ISO 16890 quantify size-resolved particle removal and leakage effects in filters or whole devices.
- Bioaerosol efficacy studies under ASHRAE 241 context measure organism or surrogate reduction in chambers with device-off decay controls.
- VOC, formaldehyde, ozone, and by-product panels aligned to ISO 16000 or UL 867 screen ionizers, UV, PCO, or treated-media designs.
- Gas-phase removal and CFD studies use ISO 16000 or ASHRAE framing to compare sorbents, catalysts, airflow patterns, and sampling locations.
Teams usually come to us when a design choice, a supplier comparison, a marketing claim, or a customer complaint hinges on how the purifier actually performs. Before the device ships to us, the study plan fixes operating modes, chamber setup, challenge type, controls, and reporting boundaries.