N95 masks KN95 FFP2 masks have their own standards and protection

This paper expounds the applicability of the standards of N95, KN95, FFP2 masks in different situations, and provides technical reference for the selection of epidemic prevention materials.

With the new corona virus infection of pneumonia epidemic prevention and control work continues to deepen, N95 masks, KN95, FFP2 and other professional terms caused widespread concern, mask standards into the public eye. Comparing the standards of the United States, China, Europe, Korea, Japan, Australia and so on, this paper focuses on the filtration efficiency of ordinary masks and medical masks, explores N95 mask, KN95 masks, FFP2 masks from the standard point of view, and summarizes the comparison table of the filtration efficiency of domestic and foreign mask standards, which provides a reference for epidemic prevention work and consumer selection.

People’s understanding of mask standards

“Minimize close contact with others while travelling, and wear KN95/N95 and above particulate protective masks in crowded public transport and on transport.”

“When others enter the residential space of isolated persons, they should wear KN95/N95 and above particulate protective masks, during which do not touch and adjust the mask.”

For special industry personnel, there have also been many references to “medical protective masks”, “medical surgical masks”, “one-time use of medical masks” and “KN95/N95 and above particulate protective masks”. In the face of the new corona virus outbreak, masks become a necessity of life, N95 masks, KN95 masks, medical protective masks, one-time use of medical masks what is the difference, can be applied? For a time, mask standards became the focus of attention, this paper focused on various standards of filtration efficiency, for epidemic prevention work and consumers to choose the right mask to provide reference. DYCROL N95 masks brand is doing a good job in this regard.

Masks can be divided into general masks and medical masks

Masks can be divided into general masks (general protective masks and daily protective masks) and medical masks (medical general masks and medical protective masks), and all types of masks are divided into three levels of protection according to the level of protection. In summary, the general masks of various countries are concerned about the filtration efficiency of particulate matter (oily and non-oily), of which N95, KN95, FFP2 are code-named filtration efficiency, and medical masks are concerned about the filtration efficiency of particulate matter, but also pay attention to microbial indicators, ethylene oxide residues, flame retardant properties and other indicators. However, it can not simply be considered that medical masks than ordinary masks are more protective, some medical masks relative to KN95 95% of the filtration efficiency is lower, the choice of masks also need to be based on the individual environment, according to the product implementation standard model regulations.

The filtration efficiency of the above mask standards is summarized, and the filtration efficiency of non-oily particulate matter, the filtration efficiency of oily particulate matter and the filtration efficiency of bacteria are different.

Most foreign general purpose masks perform CFR42-84-1995’s Explanatory Guide to the Selection and Use of NIOSH Particulate Protective CE Masks and FFP2 EN149-2001 and FFP3 masks.

N95 masks KN95 FFP2 masks standards

The N-Series for non-oily particulate matter is based on U.S. standards, the FFP Series is based on European standards, the KN Series is based on Chinese standards, and the higher the number, the higher the protection level. From its index values, the filtration efficiency (protection capacity) of each model for non-oily particulate matter is from high to low: N100 – KN100 > N99, FFP3 > N95, KN95 ≈ FFP2 > KN90 > FFP1.

The filter efficiency of ordinary protective masks is also required in the national standards of Japan, Korea, Australia/New Zealand.

In addition to requiring the filtration efficiency of particulate matter, medical masks generally emphasize the filtration efficiency of bacteria, synthetic blood penetration, microbial indicators, ethylene oxide residues and other items have requirements, in order to avoid infection to patients in the surgical and other medical processes, as well as blood spills on the mask penetration. FANGTIAN N95 masks cost – effective, high quality.

4 types of masks commonly found on the market today, sorted from low to high by protective effect: Single use of medical masks < medical surgical masks < KN95/N95/FFP2 and above particulate protective masks.