The function and protection principle of KN95 mask| KENJOY

What is the role of KN95 mask? What is the disposable Kn95? What kind of protection principle can be played, the next kn95 mask wholesale to give you a simple explanation.

The role of kn95

The filtering efficiency of particles with aerodynamic diameter ≥0.3m can reach more than 95% when wearing KN95 class mask. The aerodynamic diameter of airborne bacterial and fungal spores mainly varies between 0.7-10m, which is also within its protective range.

Therefore, the respirator can be used for respiratory protection of certain particles, such as dust generated by grinding, cleaning and processing of minerals, flour and some other materials, as well as for liquid or non-oily particles generated by spraying that do not produce harmful volatile gases.

Effective filtering and purification of inhaled odors (other than toxic gases), helps reduce exposure levels to certain inhalable microbial particles (e.g. mold, bacillus anthracis, tuberculosis, etc.), but does not eliminate the risk of contact transmission, illness or death.

KN95 level is one of the levels stipulated in The Chinese standard GB2626-2006.

What is a disposable KN95 mask

"Disposable" is the definition of a product in the national standard, which means that the product cannot be cleaned and the whole product must be immediately discarded when any component fails. Respirators are reusable and do not have to be thrown away once used.

Disposable masks that can be thrown away anywhere, anytime, as the name suggests

Since the main design environment of respirators is the workplace, it is usually stipulated that respirators can be replaced after one working shift, mainly because respirators cannot be washed and workers should not be required to use unsanitary masks.

However, they can be reused if they have been used for a short period of time, there are no health problems, and they do not become ineffective (such as deformed or damaged), or the increase in respiratory resistance is too high.

Protective principle of FFP2 mask

The material used to filter particulate matter has mineral fiber, natural fiber or synthetic fiber, filter material fiber is divided into five kinds of filtering mechanism of particulate matter in the air, they can play a comprehensive role.

Sedimentation: the large particle material in the airflow is affected by gravity sedimentation to the filter material, separated from the airflow;

Inertia impact: when the particles in the airflow bypass block in front of the filter material fiber, the higher quality of the particles will deviate from the direction of the airflow by inertia, hit the filter material fiber is filtered down;

Interception: particles in the airflow is closest to the streamline of the filter material, because the radius of the particle is greater than the distance between the streamline and the filter material is "scraped" and intercepted by the filter material;

Diffusion effect: affected by the thermal movement of air molecules, extremely small particles by the impact of air molecules, constantly change the direction of movement, Brownian motion, random contact with the filter fiber is filtered down;

Electrostatic effect: if the filter material fiber with weak static electricity, regardless of whether the particles in the airflow itself with static electricity, when they are close to the filter material fiber is easy to be attracted by static electricity and filtered down, electrostatic effect can help filter materials improve the filtering efficiency without increasing the airflow resistance

The above is the role of KN95 mask and protection principle of the relevant introduction, want to know more about FFP2 mask information, welcome to contact our mask wholesale.