Launch of New IAQ objectives Under the Indoor Air Quality Certification Scheme for Offices and Public Places

 

According to the update from Indoor Air Quality Information Centre, a set of new indoor air quality (IAQ) objectives under the Indoor Air Quality Certification Scheme for Offices and Public Places will be launched on 1 July 2019. IAQ certificate and label with a different design will be issued to premises certified under the new IAQ objectives.

The key updates of the IAQ objectives are shown as follows:

  1. Three physical parameters (room temperature, relative humidity and air movement) will be removed.
  2. Good Class IAQ objectives of carbon monoxide (CO), respirable suspended particulates (PM10) and radon will be tightened.
  3. New short-term IAQ objectives of 1-hour nitrogen dioxide (NO2) and 30-minute formaldehyde will be added.
  4. Mould will be added as a new parameters.
  5. The existing IAQ objectives of 10 individual volatile organic compounds (VOCs) will be replaced by five VOCs according to WHO IAQ guidelines.

Source: https://www.iaq.gov.hk/en/publications-and-references/guidance-notes.aspx