ISO 10121-3:2022 - Carbon Filtration

Molecular filtration has always been a dark art, with few companies having the experience of its successful application.

Many carbon filters have historically been specified as a tick-box exercise, but now there is an effective new standard to categorise molecular filters performance.

ISO 10121-3:2022 categorises activated carbon filters into Heavy Duty, Medium Duty, Light Duty, and Very Light Duty.

Light Duty (LD) filters are for OAQs with only marginal requirements for removal of gaseous pollutants
Medium Duty (MD) have 4 times the lifespan of LD filters
Heavy duty (HD) filters have 20 times the lifespan of LD filters.

ISO 10121-3:2022 represents a welcome step-change in the selection of molecular filtration in the same way the ISO16890 did for particle filtration.

Read more about our solutions for air quality remediation with molecular filtration.

Adam Taylor

Adam Taylor is CEO of ARM Environments and one of the UK's leading voices in indoor air quality. He chairs the BESA Indoor Air Quality Group and GCP Europe IAQ Group, sits on the CIBSE IAQ Group, and serves as the AIVC industry representative. Adam has contributed to four National Occupational Standards for the industry, and his expertise spans BREEAM and Fitwel building standards. His insights bring authoritative, practical guidance to ARM's blog on IAQ best practice.