[Study on the acquiring data time and intervals for measuring performance of air cleaner on formaldehyde]
Zhigang Tang1, Guifang Wang, Dongqun Xu
1Institute of Environmental Health and Related Products Safety, Centers for Disease Prevention and Control, Beijing 100021, China.
Objective:
The measuring time and measuring intervals to evaluate different type of air cleaner performance to remove formaldehyde were provided.
Methods:
The natural decay measurement and formaldehyde removal measurement were conducted in 1.5 m3 and 30 m3 test chamber.
Results:
The natural decay rate was determined by acquiring formaldehyde concentration data at 15 minute intervals for 2.5 hours. The measured decay rate was determined by acquiring formaldehyde concentration data at 5 minute intervals for 1.2 hours. When the wind power of air cleaner is smaller than 30 m3/h or measuring performance of no wind power air clearing product, the 1.5 m3 test chamber can be used. Both the natural decay rate and the measured decay rate are determined by acquiring formaldehyde concentration data at 8 minute intervals for 64 minutes.
Conclusion:
There were different measuring time and measuring intervals to evaluate different type of air cleaner performance to remove formaldehyde.
