NEW PRODUCT 30 DAYS MONEY BACK GUARANTEED GRADE: NEW (Read bottom for more details) FREE FAST SHIPPING by USPS from California TWO MASKS + FOUR FILTERS per Order! If you order two set, you get Four masks + Eight Filters Facial Mask: Masks are black made out of cotton and are washable and reusable. Masks can be hand washed in warm water. Do not get the valves wet. You can tighten the mask onto your face by pulling the plastic pieces that are behind the ear on the strings. Children under 2 years old are prohibited from using. PM2.5 carbon filters Each filter has 5 layers of protection to help keep particles from entering the lungs. Each filter is disposable and lasts from 7-10 days. Do not get the filters wet. Filters just slide in on the back side of the mask into the slit pouch. See photos on how to insert and more information IMPORTANT Note: Children under the age of two are prohibited from use of the mask The product is located in the US and will be shipped out within 24 hours M-F. Please hand wash the mask before wearing. Don't get valve or filters wet. Description: The filter element of this mask has 5 layers of protection, bringing you a safe breathing experience Special 5-layer activated carbon filter can effectively filter PM2.5 haze, dust and other fine particles Prevent second-hand smoke gases, nauseous smells, pollen, and automobile exhaust The filter cannot be cleaned. It is recommended to replace it once a week. Filter function: The first layer: spunbond cloth, filter the dust of micron The second layer: to filter industrial pollutants, automobile exhaust, second-hand smoke pollen allergies The third layer: activated carbon cloth, benzene and a smaller function of filtering dust microns The fourth layer: filter density, smaller material The fifth layer: Spunbond cloth, filters out all kinds of harmful substances Application: hospitals, outside, tourism, colds, operating workshops, farms, hazy weather, cold and warm weather Features: Keep your face clean and neat, protect your face against dust or any particles from environment. Simple design and look cool. Washable cotton and Recycling. Comfortable breathing. NO RETURNS, SINCE THESE ARE TO BE WORN ON YOUR FACE! NO EXCEPTIONS Shipping time Mon-Fri (Ship within 24 hrs) SAT-SUN (CLOSED Ship next business day) Exception: Friday after daily cut off time 8AM PDT, we ship next business day. Shipping operation day: Monday - Friday Sameday ship out available before CUT OFF time (Deadline): 7:30AM PT (10:30AM ET) Friday CUT OFF time exception: 10AM PT (1:00PM ET) If you order an product after deadline, it will be shipped on next Monday. No exception. Customer who needs faster shipping service, extra cost will be charged. This cost will not refundable in any occasions. Some of area can't be offer faster shipping service so please send us message through for inquiry. Shipping carrier can be changed without any notice. Local pick up is NOT available. Please leave a note if you want drop ship service. We do not operate shipping department on Saturday, Sunday, and National holidays. NEW: Brand New item. A: Very Clean. Very light wear or hairly scratches can be found. No dings, dents or cracked spot. A-: Overall nice and clean. The item may have light wear or tiny scratches. Of course no cracked or damaged spot. B+: Mostly looks clean but you may notice visible scratches or minor wear on certain area(spot) fyi:(Most of computer components like CPU, RAM or motherboard belong to this grade) B: Moderate scratches, worn off or tiny dings can be found. No cracked or damaged part will be found. fyi(Most of general used parts belong to this grade) B-: You may notice some of spot has excessive wear, scratches or dents. Possibly tiny crack or damage spot can be found. C: Excessivly worn off or scratched up. Damage or cracked part can be found.