Summary (Draft 3)

An excerpt from Guidelines for Good Indoor Air Quality in Office Premises (1996) stated that indoor air quality (IAQ) can be improved through the initial stage of design and construction of the building. The air conditioning and mechanical ventilation system (ACMV) should be designed in a way that prevents the spread of contaminants. Building materials used should not produce any chemicals that will affect the IAQ. To ensure acceptable IAQ, inspection were to be done constantly by professional, making sure the materials used for air ducts were able to withstand daily usage and maintenance. The guideline also mentioned that placement of the outdoor air intakes should be far away from any form of pollution, while the air filter to be situated near air intakes with protection from outdoor elements. Any systems did not belong to ACMV should not be found in AHU room. However, this guidelines may not be applicable now as the standard requirement for IAQ might had changed.

Ministry of the Environment. (1996).  Guidelines for Good Indoor Air Quality in Office Premises.
Retrieved from https://www.bca.gov.sg/GreenMark/others/NEA_Office_IAQ_Guidelines.pdf

https://www.bca.gov.sg/EnvSusLegislation/others/Env_Sus_Code2010.pdf