The Consumer Council tested ten air purifiers on the market and found that some manufacturers claimed that larger air purifier-applicable areas would have stronger purification capabilities, but the test results showed that the two are not necessarily directly proportional. The Council purchased ten models of air purifiers from different retailers and conducted the test in collaboration with the Electrical and Mechanical Services Department (EMSD). Priced between HK$1,798 and HK$7,880, all tested models came with High Efficiency Particulate Air (HEPA) filters, which claim to effectively filter cigarette smoke, dust, viruses, bacteria, etc. The Consumer Council pointed out that the applicable room area test standards and calculation methods claimed by manufacturers are different, making direct comparison difficult. It is recommended that manufacturers instead use the value of clean air volume to show the air purification ability of the product.

Source: The Standard June 17, 2024 10:45 UTC