Standard KN95 Mask

• Filter Efficiency of 99.5% (Standard requires >= 95%)
• Inspiratory Resistance of 194-200pa (Standard requires <=350)
• Expiratory Resistance of 145-155pa (Standard requires <=250)
• These KN95 masks have been rated according to the requirements under China's GB 2626-2006 standard.
• Each mask is individually packed.

Instructions for use are on the product package.