Stretch mask, standard type, high performance filter, 1 box (50 pieces) FS 1 box (50 pieces)

Since no metals are used, the effort of separating waste can be reduced. The space keeper in the center of the mask creates space and reduces the feeling of pressure on the face. The ultra-fine fiber filter provides excellent collection efficiency. Conforms to JIS T9001 general-use mask standards. Quantity: 1 box (50 pieces) Collection efficiency*: 99% (PFE/BFE) Breathing resistance*: 5.7Pa Pressure loss: 12.6Pa Material: Mask body: nonwoven fabric, ear loops: woolly rubber, nose bridge: PE (polyethylene), space keeper: PP (polypropylene) Size: 175×90mm How to wear: Over-the-ear Structure: 3 layers, 3 pleats * Tested by: Kaken Test Center, a general incorporated foundation PFE: fine particle collection efficiency, BFE: bacterial droplet collection efficiency *The above measurement results are actual values ​​and are not guaranteed values.