Specifications:

Size: Universal Ear Loop
Strap Material: Spandex/Nylon
Adjustable Nose Clip: Yes
Standards: KN95 (GB2626-2006)
Material: 4-Layer Protection (including non-woven fabrics, glass-blown cloths, hot air cotton, and non-woven fabrics)
PM 2.5 protection: 95%
Particulate Filtration Efficiency (PFE %): ≥ 95%
Low Fluid Resistance: 80mm Hg
One size fits all design