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".

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