Ordinary gauze mask: civilian, belongs to the textile class.The ordinary gauze mask is the fiber mask, its blocking flow principle is a mechanical blocking effect, through this layer by layer of mechanical blocking, can block the large particles, but the diameter of less than 5 micron particles can not block;
Surgical mask: surgical mask is made of one or more layers of nonwovens. The main production processes include melting spray, spunbond, hot air or acupuncture, etc. It has the effect of resisting liquid, filtering particles and bacteria, etc. It is a kind of textile for medical protection.
Daily protective mask, mainly used to prevent haze.Dust respirator, fume respirator (scientific name: self-absorption filter respirator against particulate matter) is generally used for occupational protection.It is better used to prevent haze.
(1) dust respirator, mainly to prevent dust, smoke, fog, microorganisms, etc.KN100, KN95 and KN90.KN100 grade can effectively prevent the ultra-fine dust rate
above 99.97%.
(2) anti-lampblack mask, mainly anti-lampblack, oil mist, at the same time can prevent dust, smoke, fog, microorganisms, etc.There are KP100, KP95 and KP90
levels.Among them, KP100 grade can effectively prevent the ultra-fine dust rate above 99.97%.
(3) according to the mask style can be divided into three types of disposable, compound half mask, full cover mask.
How To Choose Mask?
Choose according to the dustproof efficiency：
The dust blocking efficiency of the mask is based on its blocking efficiency of fine dust, especially respirable dust below 2.5 micrometers.Because this particle size of dust can be directly into the alveoli, human health caused the greatest impact.
Gauze mask, its dustproof principle is mechanical type filter, it is when dust impingement to gauze, pass through - layer upon layer of cut off, cut off a few big particle dust in sand cloth.For some fine dust, especially those smaller than 2.5 microns, it passes through the mesh of the gauze and enters the respiratory system.
Dust respirators, made of activated carbon fiber felt pads or nonwoven fabric, are used to filter the air as respiratory dust smaller than 2.5 microns is trapped as it passes through.
Select from the degree of closeness：
Mask side leakage design is to prevent air through the mask and the human face gap without being inhaled through the filter technical requirements.Air, like water, flows where there is little resistance.When the mask shape is not close to the face, the dangerous things in the air will leak into the person's respiratory tract.
So, even if you choose the best filter mask.It doesn't protect your health.Many international regulations and standards stipulate that workers should be regularly tested for the tightness of masks.The aim is to ensure that workers choose appropriate masks and wear them according to the correct procedures.
