Managing Haze

Air Cleaning Devices

Portable Air Cleaners

Portable air cleaners are compact, stand-alone appliances designed to keep the particulate levels of an enclosed space low.

For the purpose of smoke haze protection, it is useful to know the Clean Air Delivery Rate (CADR) which means the amount of clean air that a device can produce for a room. A higher CADR indicates greater ability to return clean air to the room. Knowing the CADR, as well as the room size where the air cleaner is to be installed will allow consumers to make an informed purchasing decision. On the purchase of air cleaner, buyers are advised to speak with the suppliers to obtain detailed product information in ensuring the suitability of the air cleaner to meet individual household needs.

The List of Portable Air Cleaners Against COVID-19 Virus Aerosols provides a list of portable air cleaners suitable for use in household and/or commercial settings for reducing airborne particulates based on data provided by suppliers, for reference.

Air Cleaning Devices for Buildings (with Central Air-conditioning System)

Air cleaning devices can be fitted to regulate particulate levels in buildings with central air conditioning systems during a prolonged smoke haze period. NEA had published the Technical Advisory on Use of Air-Cleaning Technologies to Mitigate COVID-19 Aerosol Transmission Risk for guidance on the use of air cleaners amid the COVID-19 situation on 30 Aug 2021.