Product DescriptionMaterial: Nonwoven fabric with melt blown plastic layer,Features: Breathable, soft lining, latex and fiberglass free, nose clip and ear loop Application: Hospital, Medical, Dental, Daily useStyle: Elastic ear-loop or tie on Breathing resistance (delta p)99% , particle filtration efficiency(bfe%)>99%.Product Features:Product weight: 25 gramsMasks are Not Washable but they are Reusable.Filters are inbuilt in the mask. No need for separate filters. Protective Mask Whether you need it for surgical reasons or to filter out dust, germs, smoke & pollen, masks are the perfect solution. Face masks should be worn to help prevent cross-contamination.HOW TO USE:Hang the elastic ear loop on your ears on both sides.Adjust and make sure it covers your nose and mouth.Press the metal strips on both sides of the bridge of the nose. Cover Completely Before putting on a mask, clean hands with alcohol-based hand rub or soap and water. Cover mouth and nose with mask and make sure there are no gaps between your face and the mask.Reusable Method: Hang the masks in a dry & ventilated place after daily use. To keep the Filter Performance, please do not wash. Avoid Touching: Avoid touching the mask while using it;if you do, clean your hands with alcohol-based hand rub or soap and water. Discard the Mask: Replace the mask with a new one as soon as it is damp and do not re-use single-use masks. Clean once Discarding Mask: Remove the mask from behind (do not touch the front of mask); discard immediately in a closed bin; clean hands with alcohol-based hand rub or soap and water.