What is the difference between N95 and ordinary medical masks?

What is the difference between N95 and ordinary medical masks? Let’s take a look today:

Ordinary medical mask once:

One-time ordinary medical masks are suitable for sanitary protection in ordinary medical environments where there is no risk of body fluids and splashes, suitable for general diagnosis and treatment activities, and for general low-flux and low-concentration pathogenic bacteria polluted environments.

One-time medical masks can meet many of your requirements, but for ordinary people, you can achieve certain precautions by wearing medical masks correctly once when you go out.

Features: Compared with medical surgical masks and medical protective masks, the filtration efficiency for particles and bacteria is relatively low, but the filtration efficiency is higher than that of ordinary cotton spun masks in society.

One-time medical surgical mask:

One-time surgical masks are more suitable for preventing blood, body fluids and splashes during invasive operations. They are mainly used for the basic protection of medical staff and related personnel in medical institutions. They are required for general doctors' operations and infection wards. Wear this mask.

Main features: It is used to prevent blood, body fluids and splashes in invasive operations, and to protect respiratory diseases transmitted by droplets. It can prevent infectious agents (bacteria, viruses and other pathogenic microorganisms) with a diameter of less than 5 microns Wait).

N95 masks: certified by NIOSH, the filtration efficiency of non-oily particles is ≥95%.

KN95 mask: It meets our China GB 2626 mandatory standard, and the filtration efficiency of non-oily particles is ≥95%.

But what we need to know is that "the core standards of industrial masks and consumer product masks are actually the same. According to the GB2626 standard KN95, KN90 is actually sufficient. The medical staff will have body fluid splashing and the environmental concentration is very high. It needs to be very strict.

But it should be noted that although some celebrity masks of the same model are more beautiful, they do not care about the protective effect. "The above-mentioned 3M technicians told the 21st Century Business Herald reporter.

Regarding the frequency of mask replacement, the above-mentioned technicians said that if they are dirty, they will start to replace them, which lasts three to five days, or they need to be replaced when the medical staff goes to the contaminated area.

In fact, regarding the frequency of replacement, at present, foreign countries, including WHO, have not had any clear conclusions on the wearing time of N95 masks, and my country has not made relevant regulations on the use time of masks.

Relevant researchers have done relevant research on the protection efficiency of N95 medical protective masks and the wearing time. According to relevant results, data shows that the filtration efficiency of N95 masks can still be maintained above 95% after wearing for 2 days, and the respiratory resistance does not change. Large; the filtration efficiency is reduced to about 94.7% after wearing for 3 days.

      The above is what the editor of ordinary medical masks will show you about the difference between N95 and ordinary medical masks, I hope to help you!