Comes with an adjustable clip to adjust the length of the rubber. Category: DS1
Quantity: 1 box (20 sheets)
Main filter material: Special antistatic nonwoven fabric
Usage time limit: 18 hours
Particle collection efficiency: 85.0% or more (average 93.5%)
Inhalation resistance: 28 Pa or less (average 20 Pa)
Weight: 15g or less
National certification number: No. TM595
