Face new coronal pneumonic epidemic situation, adorn guaze mask becomes a main people's air defense to protect one of way. And present guaze mask product is multifarious, a lot of so-called have fight bacterium, prevent haze, safety to defend wait for effect, still have vapour even all sorts of functions such as calorific guaze mask, a lot of people are bought use at defending daily, so these products, after all whether satisfy new coronal to defend standard?
Filterability of grain of guaze mask of net red fabrics can only 16.5%
The reporter carries an a variety of guaze mask that buy on the net, will to quality of national spin product supervise examine central lab, according to the standard of guaze mask sending check, guaze mask of red to a net stretch fabrics undertakes grain filterability can check.
Quality of national spin product supervises examine Huang Cong of central project controller: What we use now is the collosol of a gas of sex of sodium chloride salt, check later like that, next the diameter of gas collosol bead of this test, it is the diameter of a bead of 0.075 micron, the bulk of the diameter of a bead that it is this grain content among the air with daily imitate will check.
Detect the machine crosses the air that contains gas collosol grain guaze mask, one part grain is held back by guaze mask, the gas collosol that cannot be cut off carries guaze mask, imitate enters the person's respiratory system.
Quality of national spin product supervises examine Huang Cong of central project controller: Filter efficiency now is 16.5% , next this kind filters efficiency is poorer, this filters the meaning that is to say of efficiency has 10% much gas collosol grain to be cut off only, next 80% much gas collosol grain pass fabrics of this fabrics guaze mask, it can prevent a few daily pollen only, a few grit, a few grain with a few big grain.
On outer packing of another guaze mask, indicated to have function of vapour hot compress, the expert defends to it the effect also undertook differentiating.
Quality of national spin product supervises examine Huang Cong of central project controller: It basically is an iron pink this actually, include activated carbon, it basically is an effect of adsorptive peculiar smell, still have calorific effect, its filter the effect can say almost is done not have, it also does not prevent a few little grain filter content.
Medical how does guaze mask cut off new coronal virus
New coronal virus cannot be satisfied to defend the circumstance of demand falls in common guaze mask, medical among the eye shot that guaze mask walks into everybody from this, became indispensable every day object. So, this is thin a thin medical guaze mask, how be to help us cut off of new coronal virus?
Tag on the outer packing of the product one-time medical the product of guaze mask, medical and surgical guaze mask, need satisfies grain to filter efficiency, bacterium filters pressure of exchange of anti-flammability of penetrable, fabrics, gas needs blood of efficiency, synthesis, place the several decathlon standard such as length nasally even. These two kinds of guaze mask apply extensively at new coronal virus to prevent the setting that accuse in, but the lab of these two kinds of products detects in the standard, did not allude of virus filter efficiency. So medical can guaze mask use Yu Xinguan after all is pneumonic virus prevented accuse?
Quality of national spin product supervises examine central director Wang Baojun: Because of this virus, itself cannot exist alone, it is certain parasitism is on an object, of materially, e.g. that my grain, or our saliva flying foam. We a dozen sneeze, so if we are carrying virus, it existed on our saliva flying foam, this guaze mask held off flying foam grain, after was being held off, give virus actually be kept out.
One-time medical guaze mask and medical and surgical guaze mask are general very frivolous, why to cut off can efficiently petty grain content?
Quality of national spin product supervises examine central director Wang Baojun: If say we just prevent this grain thing to achieve inspiratory, that is very simple, we use other a lot of things, I do it very closely, very thick did not go? It can achieve this result. But, it is difficult that we breathe. We still must achieve already can this grain content, hold off this bacterium, at the same time we breathe to still cannot suffer too big hold back. Do not have with frit gush actually spin cloth, can achieve this result particularly. It this permeability is better, between manufacturing treatment, be stationed in it finally extremely, halt extremely added it electrode. Such word we have a few delicate grain thing of what, it gives adsorption with respect to itself, so it rises so an action.
Cloth of gush of frit of experimental test and verify is electrostatic and adsorptive the effect
To observe the electrostatic and adsorptive effect of frit gush cloth better, expert spot is torn open solved a medical and surgical guaze mask, demonstrated an experiment to the reporter.
Quality of national spin product supervises examine central director Wang Baojun: Normal and medical guaze mask is mixed outside it inside it is we are not had groovily spin cloth, it is copy cotton is not had commonly spin cloth, its action is the frit gush cloth inside wrap up actually. After cutting open, we can see, this is us outside is one brings facial expression, this is cotton of a copy is not had spin cloth, very thin. Also be one is not had inside spin cloth, very thin. And this one word, it is frit gush does not have cloth of gush of the frit that spin cloth, its intensity is compared commonly low, dragged it to be broken a little.
Because of cloth of this frit gush it is the belt is electrostatic, such word, we this small scrip. After be being cut, try. Look, a lot of more adsorptive scrip. Use this electrostatic, stay in grain adsorption again, such word, filter efficiency is taller.
The expert brought a variety of guaze mask fabrics to have test of one by one to the reporter, no matter be common without spin cloth, still be a net the guaze mask of red stretch fabrics, do not have the function of electrostatic adsorption.
Buy medical guaze mask needs to know name of accurate technology standard
Face the guaze mask product of full of beautiful things in eyes, arrive character from material function, put in bigger difference. So when be being bought, how should we choose to be used at defending daily the guaze mask of new coronal virus?
The expert expresses, one-time medical guaze mask product needs to accord with YY0969 of Chinese medicine occupation standard " one-time use medical guaze mask " each index; Medical and surgical guaze mask needs to accord with YY0469 of Chinese medicine occupation standard " technology of medical and surgical guaze mask asks " . Of guaze mask defend ability involves circumstance of grain filterability, joint, bazoo to place the many sided element such as the standard. Because this is being bought,with Yu Xinguan pneumonic epidemic situation defends daily when used respirator, need is certain standard number, ability utmost ground assures bought guaze mask, in new coronal pneumonic defend the respect produces effect.
Quality of national spin product supervises examine central director Wang Baojun: It should have the number that produces approval, have standard number even additionally, after all the standard produces it by which. If do not have standard date, this word must not be bought as far as possible, although say it can achieve this requirement possibly also, but it does not have standard number, yourself is judged very hard, it is first selection is normaller so, tag this kind of normaller guaze mask.
Author: CCTV news client is carried
Origin: CCTV news client is carried
