90% of people don't know! 3 fatal misunderstandings about cleaning half-mask filters

half-mask filter get dirtier the more you wash it? Laboratory data shows that the protection efficiency of incorrectly cleaned filters drops by 67%! What's more terrifying is that moldy filter cotton may cause respiratory infections - this is not protection, it is chronic suicide!

Myth 1: Directly flushing the filter cotton with water=destroying the filter layer



→ Water pressure destroys the electrostatic adsorption layer (PM2.5 main filter layer)

→ The measured protection efficiency plummeted from 95% to 28%

Deep cleaning technique: Medical-grade ultrasonic cleaner vibrates to remove dirt

Myth 2: Alcohol disinfection=chronic poisoning trap

"Does it feel 'cleaner' to spray disinfection with 75% alcohol?"

Safe disinfectant: quaternary ammonium salt non-corrosive disinfectant spray
Ultraviolet disinfection: portable UV lamp irradiation for 15 minutes to inactivate bacteria

Misunderstanding 3: Drying in the sun=breeding ground for mold



→ The number of colonies in wet filter cotton exceeds the standard by 12.8 times in 24 hours
→ The risk of mold spores causing asthma increases by 4 times

Three-minute quick drying technique: Use a centrifugal dehydrator to dry the water (applicable to auto repair shops/factories)
Anti-mold storage tips: Store with silica gel desiccant