Highest PM2.5 Passive Purification Efficiency by a Chinese Knot
- RECORD HOLDER
- Li Yuncheng
- WHAT
- 31.78%
- WHERE
- Tianjin, China
- WHEN
The specially designed Chinese knot by Li Yuncheng from Tianjin, China, was tested by an accredited testing center and achieved a PM2.5 removal rate of 31.78% after 2 hours of static exposure in a sealed 1.5 m³ space. After verification by Forbes World Records Certification, this Chinese knot successfully set the world record for the "Highest PM2.5 Passive Purification Efficiency by a Chinese Knot".
FWRC250515Z-CN