Trending ProductsN-Methyl-Gamma-Piperidone - Medical folding nanofiber protective mask – E.Fine
Trending ProductsN-Methyl-Gamma-Piperidone - Medical folding nanofiber protective mask – E.Fine Detail:
folding nanofiber protective mask
Main raw material ,Structure and composition:
Mask (sterility) It is composed of mask body, nose clip and mask belt. Mask body is divided : surface layer, filtration layer , fine nano filtration layer , bottom layer,Skin friendly layer , total five layers.
The surface , bottom layer , and skin friendly layer of mask is Polypropylene spunbonded nonwoven fabric , filtration layer is Polypropylene melt-sprayed nonwoven fabric, fine nano filtration layer is nanofiber membrance , the nose clip is made of a plastic material,The mask belt is made of polyester and spandex yarn.
Application:
This standard is applicable to the medical working environment, filter the particulate matter in the air, block droplets, blood, body fluids, secretions and other self-absorption filter medical respirator.
Main technical indicators of products:
Filtration efficiency
When the gas flow rate is 85L/min, the filtration efficiency of the mask for non-oily particles should meet the requirements in table
sheet 1 ,Filtration efficiency class % |
|
One |
≥95 |
two |
≥99 |
Three |
≥99.97 |
Airflow resistance
For gas flow of 85L/min, the inspiratory resistance of the mask should not exceed 343.2pa (35mmH2O)
synthetic blood penetration
Spray 2mL of synthetic blood into the mask at a pressure of 10.7kpa (80mmHg). No infiltration should occur inside the mask
Surface moisture resistance
The water level on the outer surface of the mask should not be lower than the level 3 in GB/ t4745-1997
Microbiological indicator
The mask should meet the requirements of the microbial indicators in gb15979-2002, as shown in table 2
Sheet 2 Microbiological index of mask
Total number of bacterial colonies CFU/G |
coli group |
pseudomonas aeruginosa |
staphylococcus aureus |
hemolytic streptococcus |
Total number of fungal colonies |
≤200 |
undetectable |
undetectable |
undetectable |
undetectable |
≤100 |
Residual ethylene oxide
For masks sterilized by ethylene oxide, the residue of ethylene oxide should not exceed 10 g/g
flame resistance
The materials used should not be inflammable. The afterburn time should not exceed 5s
Skin irritation
The score for primary irritation of mask material should not exceed
Sterilization method: ethylene oxide sterilization. Residual ethylene oxide (g/g) ≤10
Standard:GB19083-2010
Product detail pictures:


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