: It can be used for activated carbon filters, scrubbers, absorbers, or even non-sorptive devices.
The series is the international standard for testing and classifying the performance of molecular air filters and filter media used in general ventilation. It provides a standardized way to evaluate how well air cleaning devices remove gaseous contaminants (like ozone or smog) from the air. 1. Breakdown of the ISO 10121 Series iso 10121
This section deals with high-efficiency filters (often used in hospitals, cleanrooms, and high-end residential HVAC). : It can be used for activated carbon
: Testing the raw media (like activated carbon) before it is built into a filter. : Standardizes the interface between media suppliers and
: Standardizes the interface between media suppliers and filter manufacturers. ISO 10121-2: Gas-phase air cleaning devices (GPACD) Focus : Testing the finished filter device as a whole unit.
: To provide an objective test method that doesn't require manufacturers to reveal proprietary internal designs.
Specifies only a few challenge gases (typically toluene, SO₂, O₃, NH₃). Does not cover all relevant indoor pollutants (e.g., NO₂, formaldehyde in some versions).