Funight KN95 Face Masks 50 Pack 5-Ply Breathable Filter Disposable Face Masks BlackBrand: Funight Color: Adult 50 Pack black Features: Funight Ventilation Series KN95 Face Masks follow the GB2626 2019 respiratory protection standards. These standards require all masks to have a filtration efficiency of at least 95%, which means the material can filter out harmful molecules such as fine particles and dust. Ventilation Series KN95 Face Masks maintain a strict filtration efficiency standard while keeping the design comfortable and