100Pcs Prevent Flu KN95 Face Mask N95 Respirator Dust Mouth Masks Formalde Hyde Bacteria Proof Safety As KF94 FFP2 Dropshipping
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2.What is the difference between kn95 and N95 FFP2 KF94 etc.?
The N series of masks are American standards, the kn series are Chinese standards, the FFP series are European standards, and the KF series are Korean standards
The number refers to the protection ability, the greater the number, the higher the degree of protection.
95 means that the effective rate of filtration of such particles reaches 95%.
Series 90 is not as high as 95, but it can also resist more than 90% of particles.
In FFP series, 2 basically corresponds to 95, and 3 has a higher efficiency of filtering, up to 99%.
It is easier to understand the filtering ability by the following relationship:
FFP3 > FFP2 = N95 = KN95 = KF94 > KN90
3.What is the difference between valved mask and no valve?
The protective performance of valve mask is the same as no valve mask
The difference is:
****Function of breathing valve: in hot and humid working environment with poor ventilation , breathing valve can help you feel more comfortable.
The function principle of the breathing valve is that :
Positive pressure is generated by exhaling, the valve plate is blown open, gas in the body is discharged rapidly, so the sense of stuffy heat is relieved.
When inhaling, the negative pressure will automatically close the valve to avoid inhaling pollutants from the external environment
4.How long can kn95 mask be used?Is it reusable or washable?
*For kn95 mask, if there is no pollution, no droplet, no deformation, the mask and face can keep close fitting, generally speaking, it can be worn for three days
*In general, it is not recommended to reuse KN95 masks.
Only in case of an emergency situation and extreme lack of epidemic prevention substances, it is considered to reuse them after sterilization with dry heat and ultraviolet rays.
*When n95 receives contamination such as saliva, blood, tears and other body fluids, it must be replaced
*The user obviously feels that the breathing resistance is greater than before and must be replaced
* Masks are damaged and must be replaced
*It is recommended to replace it after using it 4 times.
However, masks cannot be reused if people go to the hospital, come into contact with an infected person, or are suspected to be infected.
5. What is the design and material of KN95 mask?
*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, filter out all kinds of harmful substances;
13*26cm Dust Mask Anti-Fog Anti Dust Flu Face Mouth Warm Masks Healthy Air Filter Dustproof Antivirus Antibacterial Protective
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Please be kindly noted，the listed product is produced and distributed abroad and subject to the laws of its country of origin. Description: Mouth Mask Breathable Unisex Sponge Face Mask Reusable Anti Pollution Face Shield Wind Proof Mouth Cover Specification: Item type: Masks Material: Sponge Function: Bacteriaproof Size: Full size Dimension: 13*26cm（H*L） Color: as pictures shown …
Washable Universal Pollution Mask Anti Dust Flu Virus Smoke Mask With Earloop Respirator Safety Mask Health Care
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Features:Product Name:Respirator MaskColor:As the picturesCondition:Brand newGender:UnisexSize:One size Description:1. Anti-allergy Materials: made from anti-allergy Polyurethane dust, Very high filtration rate of PM2.5, pollen, bacteria, etc. 99% protection effect. The mask is breathable, comfortable, soft and skin-friendly. Non-toxic and odorless. Polyurethane’s superior performance is widely used in textiles, medical, defense, aviation, and non-ordinary non-woven masks can be …