Products Description: The product is made of four layers of non-woven fabric, mask belts and nose clips by mechanical pressing. The product helps protect you from dust and smog particles air-borne particles, droplets and other harmful particles. Products Application: Prevention of dust bacteria, wear soft and comfortable, Prevent cross infection, High efficiency filtration. CAUTION Do not use in atmospheres containing less than 19.5% oxygen, as this respirator does not supply oxygen. Not for use in oil mist atmospheres. Products Show: USE FOR The product is suitable for the dust protection, smog particles, air-borne particles, droplets and other harmful particles. Products Package: Storage method Sealed, Normal Temperature, Dry, Avoid Sunlight Preservation. FAQ: Q1: What is the payment method? A: Accepted payment: MasterCard, Visa, e-Checking, PAYLATER, T/T, PayPal, Western Union. Q2: Can the nose strip of the mask be fitted? A: It is a flexible metal strip that you can fit to your nose. Q3: When is your delivery time? A: Depending on the quantity ordered. If you need an urgent order, please contact us to discuss your specific requirements.Medical Mask website:http://www.cantellitech.com/medical-mask/