New Mask Filter pad 99.9% Removal E.coli, Staphylococcus, pneumonia,Pseudomonas aeruginosa Methicillin-resistant Staphylococcus (MRSA) 99.9% removal Filter: Antibacterial nano ultra Size: 21cm x 9cm, 4.76g **10 pieces in 1 pack Minimum order Quantity: 10,000pcs Product origin : Made in Korea And we can supply the best products 50times reusable mask Made in Korea If you need please contact us I will send you more detail information. Thank you and best regards.