KN95 Respiratory mask is very effective in protection against corona virus. It has high technology which filters 95% of particles up to 0.3 microns. Information of product is given below: Packing Information 1. Colour: White 2. Quantity: 500 pieces per ctn 3. Net Weight: 3.3 Kg 4. Gross Weight: 5.63 Kg 5. Size: 760 X 260 X 360 mm 6. Total quantity: 300,000 Masks (per 40ft container) 7. Origin of the product: China We directly deal with the factory and as a direct agent. Shipments comes through via ship or by air depends upon your urgency. This product carries various certificates. Please contact me as below for further discussion. Thanks.