02-019-7296 | 081-595-3011 | 095-748-7312

Thermal Comfort Test

Air Movement/Airflow Direction

Appropriate criterion: < 0.30 m/s

Temperature & Relative Humidity

Appropriate criterion: Temperature between 23-25 degrees Celsius Relative humidity < 70% RH


When air quality exceeds the standard for dust or pollutants, in addition to wearing respiratory masks outdoors, government agencies may recommend staying indoors with doors and windows closed as much as possible. Living inside a building can partially protect residents from outside dust and pollutants and prevent the easy flow of outside air as most building constructions are closed. However, the characteristics of the indoor air can lead to increased humidity and the growth of bacteria, mould, and airborne diseases. Residents may often experience discomfort due to stagnant and non-circulating air which can result in Sick Building Syndrome such as headaches, skin or eye irritation, difficulty breathing, coughing, and sneezing. These illnesses are more likely to occur in those who spend more time inside a building than outside. Therefore, it is also crucial to pay attention to Indoor Air Quality (IAQ) as it greatly affects the health of those who reside inside a building.

Indoor Air Quality Testing is the process of measuring the quantity of particles and gases, temperature, and humidity in the air inside a building. In a residential building, the quality of the air is determined by the ability to maintain good health and well-being for the residents. In a manufacturing building, the quality of the air is determined by the ability to produce high-quality products efficiently and cost-effectively.

Testing Reference Standards

  • Department of Health

Air Quality Testing Objective

The objective of the air quality test is to perform Cleanroom Performance Testing (CPT) in cleanrooms, negative pressure rooms, and airborne infection isolation rooms, to ensure that the air conditioning systems within these rooms are working efficiently and in accordance with the specified standards. Prior to the CPT, all systems within the room must be completed through the Testing, Adjusting, and Balancing (TAB) process. The following is a list of testing and measuring procedures that will be performed

  • Airflow Volume Test to identify Air Change Rate
  • Filter Installation Leak Test
  • Room Pressurization Test
  • Airborne Particle Count Test
  • Temperature and Relative Humidity Test
  • Total Viable Bacterial Count and Total Viable Mould Count
  • Lighting Level Test
  • Sound Level Test
  • Room Recovery Test
  • Duct Leakage Test
  • Room Air Leakage Test


ISO 9001: 2015

NEBB Cleanroom
Performance Testing (CPT)

NEBB Testing & Adjust
and Balancing (TAB)

By clicking “Accept”, you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts. Privacy Policy

Privacy Preferences

Allow All
Manage Consent Preferences
  • Always Active