79.99 USD is for 10 pieces of KN95 Masks，The more pieces you purchase, The Price lower for each piece.
FFP3/N95 Filter Mask reduces the risk from Bacteria. Lab tested and clinically proven to prevent the risk of infection. Filters out 99.9% of bacteria, dust, chemicals, particles, pollen and smoke.
Protection all year round: Our upgraded KN95 dust mask is equipped with four replaceable active carbon filters, five layers of filtration technology so that pure air offers you healthy breath. It is suitable for cycling, running, polishing, mowing, wood processing and other outdoor activities.
Active carbon high-filtration mask with 5 layers
Up To 50 Times Protection Against Non-Toxic Dusts, Fibres & Aqueous Mists
High filtration efficiency and low breathing resistance
Adjustable nose clip
Easy To Store Due To Fold Flat design
95% success rate in blocking particles with a diameter of 0.075 microns
Usage Time : 72 hours
Filtering efficiency drops to about 80% on average after testing 14
Disposable Medical Mask can block 70%-80% of bacteria
Usage time:4 hours.