• Yi Jie (IFSC)

Top 3 Recommended IAQ Sensors for Green Mark

The Green Mark certification scheme was launched in January 2005. It is a green building rating system designed to evaluate a building’s environmental impact and performance. It provides a comprehensive framework for assessing the overall environmental performance of new and existing buildings to promote sustainable design,and best practices inconstruction and operations in buildings.


Indoor Air Quality (IAQ) is a measurement of the air quality within and around buildings and structures. IAQ is determined by the level of carbon monoxide, Volatile Organic Compounds (VOCs), mould and bacteria – factors that are naked to the eye, yet induces severe side effects to our body. Air quality affects the health, comfort and well-being of building occupants and it is crucial that building owners take care to maintain the levels. To attain the best value (maximum IAQ at the lowest cost), we have identified 3 commercial products for comparison. From the comparison, we have concluded that AirWits IAQ will fulfil the requirements at the lowest price.


Read on to find out more.



Only uHoo Aura and AirWits IAQ will be able to fulfil all the criterion outlined by Green Mark:

· Constantly monitor the quality of the indoor environment on a daily routine

· Monitor and log temperature and relative humidity of the office

· Monitor and log TVOC levels of the office

· Display the readings of the temperature, relative humidity and TVOC of the office on a screen*


*uHoo SAM does not have a screen and will be unable to display the readings on the machine


While uHoo Aura is capable of tracking more parameters, it may be suited on a larger scale commercial setting due to its larger price tag. AirWits IAQ fulfils all the requirements to attain a Green Mark, and will be ample for an office. When complemented by other measures such as air sanitisers and frequent cleaning, the office will be able to ensure a high IAQ.

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