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EPD's IAQ Scheme 2019
14 January 2019

Hong Kong EPD's IAQ Scheme 2019
Credit: EPD guide Air Grille with dirt not mould

In January 2019 HKSAR EPD published the new updated IAQ Certification Scheme for Offices and Public Places, download the new guide from

Besides updating the IAQ parameters, a new criteria 'mould' has been added.

However, the mould assessment can only be described as simplistic, ANNEX 3 provides a visual checklist, the guide also provides some sample photographs, one photo stands out, it shows the typical pattern of dirt on an air grille (see photo above) not mould, which doesn't inspire confidence.

Here is the link for the new 2019 Guidance Notes for the Management of Indoor Air Quality in Offices and Public Places

Common in Asia and Hong Kong, mould is a serious issue because it can impact the health and wellbeing of building occupants, and the source is often not investigated properly. Mould in air conditioned buildings PPT by John Herbert

mould in hong kong buildings

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About the Author

John Herbert is a veteran chief engineer with more than 30 years international engineering experience, educated in the United Kingdom, he has worked in the United Kingdom and then across Asia for more than two decades engaged by international and local companies. He is a Hong Kong Registered Energy Assessor (REA), a BEAM Professional, and stationed in Hong Kong.

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