Abstract
Pollution levels and increasing airborne diseases are today key factors driving the dynamic market of home air cleaners. Numerous air purifiers of varying shapes and sizes are now commercialized, often constituted of passive filters (pre filter, HEPA filter, Activated Carbon filter) and sometimes of active systems (photocatalysis for instance). Manufacturers tend to make bold claims regarding the efficiency of their products, but those claims are not often substantiated by hard evidence. This is especially the case with gaseous pollutants. We present here comparative laboratory tests conducted at CEA and inspired by the American, Chinese and French standards, of six commercial air cleaners suitable for medium-sized rooms. The purpose is to measure and compare their Clean Air Delivery Rates for particulate matter, and filtration efficiencies for Volatile Organic Components. The air cleaners are found to be effective against particulate pollution, but their performance against gaseous pollutants is on the whole disappointing.
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