Some problems that should be paid attention to choose dust mask

by:HongYu Apparel     2020-04-24

Dust mask the execution of the standard of the national industrial products production license office announced that started on August 1, 2009 GB2626 - 2006 'respiratory protective equipment self-priming prevent particulate respirator filter type' standard of dust mask, alternative GB2626 - at the same time 2006 'respiratory protective equipment self-priming filter type dust mask'. The new standard main contents, make the following changes ( 1) Specifies the definition of particulate matter: dust, smoke, fog, microorganisms. ( 2) Self-priming filter type the requirement of the particulate respirator is about 0. 26 microns particles and effective protection. ( 3) Specifies the category of the particulates as: oily particles and non oily particles. ( 4) To oily particles protection grade: KN90, KN95, KN100, protection grade three. Filtration efficiency, respectively, 90%, 95%, 99. 97%. ( 5) For non oily particles protection grade: KP90, KP95, KP100, protection grade three. Filtration efficiency, respectively, 90%, 95%, 99. 97%. Dust mask safety sign ( 1) Paste on each dust mask products have issued by the national office of safety sign of dust mask safety sign. Mark the dust mask has passed safety certification. Allow the sale and use. All that there is no sign paste national security office issued by the dust mask safety sign dust mask, safety sign office regulations of the state shall not sell or use. ( 2) Safety sign number are printed on the safety sign, may, in accordance with the safety sign number through national safety sign office website query whether dust mask production enterprise certification. ( 3) Confirm whether safety sign number are printed on the safety sign, consistent with dust mask production enterprises. To determine whether the dust mask is approved for use of the security level of qualified products dust mask and filtration efficiency started on August 1, 2009 GB2626 - 2006 'respiratory protective equipment self-priming prevent particulate respirator filter type' standards, regulations on environmental protection grade: KN90, KN95, KN100 three protection grade. Protection grade of oily particles respectively: KP90, KP95, KP100 three protection grade. Filtration efficiency, respectively, 90%, 95%, 99. 97%. These KN100, KP100 as the highest degree of protection. National GB2626 - Specified in the standard: 2006 on dust mask filter elements with permanent identification: 'GB2626 - 2006 - KN100 'national standards, title, protection grade identification. Protection grade and the filtration efficiency, the higher the dust mask of safety. No provisions of the state of the labels on the market at present are not products that meet the national standards, especially pay attention to prevent purchasing counterfeit products can bring unnecessary occupational injuries to the user. How to select the protection grade of double dust mask ( 1) Should first confirm the harmful particles categories: the working environment is oily particles and oily liquid particles, non oily particles should choose KN protection grade of the filter element. Oily particles should choose KP protection grade of filter element. ( 2) The user to confirm the particle concentration and particle size of the working environment, the greater the concentration, the smaller the particle size, the higher need protection grade. ( 3) Confirm that the provisions of the state of particulate matter in the working environment of occupational exposure limit. ( 4) Calculate the dust mask should be selected for the filtration efficiency. Formula is as follows: environment/occupational exposure to particulate matter concentration limit - 100 = dust mask should be selected for the filtration efficiency of choosing respiratory protective equipment is prone to error ( 1) Ignore the protection grade of the product and the filter efficiency of filtering efficiency is lower, the greater the leakage rate, make the wearer still cannot get effective protection. ( 2) The optimum palin to ignore the protection articles; Will make the mask easy to leak. Pleasant to her bad when they wear the mask of users for facial uncomfortable, not to wear for a long period of time, often take off the mask, make the wearer still unnecessary damage the health and safety. ( 3) Lay particular stress on protective equipment of low price, ignored the quality and safety of dust mask; Due to some buyers of lay particular stress on low dust mask, ignored the quality and safety of dust mask; The user use process from unnecessary wear occupational injuries. At the same time also a waste of money. ( 4) Notice to the unit price in choosing a dust mask, and ignore the service life of the dust mask, service life is the key measure of protection cost. Although some protective equipment unit price is very low, because the quality is poor, lead to a short service life, caused the actual protection comprehensive cost is very high, comprehensive protection cost actually really need to focus on is protective equipment evaluation value.                                

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