Face Masks are classified into civilian masks and medical(Surgical) masks. A civilian mask is used for the purpose of filter air into the mouth and nose to prevent harmful gases, odors, and droplets from entering and leaving the wearer’s mouth and nose. Civilian(Non Surgical) masks mainly divided into cotton mask, non-woven mask, polymer material mask, activated carbon powder filter mask, activated carbon fiber felt pad mask. Medical masks can prevent most of the bacteria, viruses and other pathogens, and WHO recommends that medical personnel use protective masks (N-95 masks) against particles to prevent virus infection in the hospital air. Medical masks mainly divided into medical protective masks, medical surgical masks, general medical masks.
There are three commonly used masks on the market: cotton masks, medical surgical masks and medical protective masks (N-95 masks), among which medical surgical masks can block 70% of bacteria, N-95 masks can block 95% of bacteria, and cotton masks can block only 36% of bacteria.
Wearing a mask is NOT a reliable way of preventing an infection by the COVID 19 virus or other forms of coronaviruses. It is good for someone infected to wear a mask to reduce the risk of infecting other people. But it is not a 100% safe approach.
General Checklist before purchasing Mask
Import basic Checklists
| Inner packing dimensions | Take dimensions, and report actual finding. Values in cm. | Compare to client specifications and perfect sample if applicable. |
| Inner packing barcode scan | Scan barcode | Compare result with actual printed number and specification from client if applicable. |
| Inner packing sticker | Check inner packing stickers | Confoms to specifications |
| Instruction manual | Check instruction manuals | Compare to client specification if applicable. |
| Inner packing polybag | Look at a polybag details | Report actual findings and tick the boxes below. Findings must conform to client specifications. |
| Inner packing information | Look at a carton details. | Report actual findings and tick the boxes below. Findings must conform to client specifications. |
| Appearance & workmanship | Report actual finding and take detailed photos. | Confoms to specifications |
| Dimension | Take dimensions | Report actual finding and compare to client specification if applicable. Values in cm. |
| Weight | Take weight | Report actual finding and compare to client specification if applicable. Values in g. |
| Certification | Check with factory for applicable certifications. | Report actual findings |
| Color check | Check unit colors according to client’s file | Confoms to specifications |
| Material check | Check product material according to client’s file | Confoms to specifications |
| Smell check | Open the master carton, inner box, and product. | No strong or irritative smell should be found |
| Printing check | Printing on masks is correct, good quality | Confoms to specifications |
| Fabric straps | Fabric straps are fixed on the mask, not loose. Strap ends are neatly trimmed. | Confoms to specifications |
| Function test | Check the function of the product, it should work as claimed | Confoms to specifications |
| Fitting test | Put product on a dummy or a live model. | Product should look good (no obvious fitting problem) |
| Waterproof test | Drop water on the product surface. | It should be waterproof |
| Fatigue test | Push/press/use adjustable parts 50 times. | The products should be as remain the same as new. |
| Color fastness to rubbing test | Rub the markings and the logo 20 times, with a soft cloth dipped in alcohol (if no alcohol is available, use oxygen water and mention it in the findings). | No color should get transferred. |