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Face mask, face shield, FFP2, N95, KN95 — what's the difference?

Face mask, face shield, FFP2, N95, KN95 — what's the difference?

A new British study shows: Hospitals in which doctors and nurses observe strict hygiene and wear FFP3 masks were able to eliminate COVID-19 transmissions by almost 100 percent. That proves: Masks do work ― some more, some less. To get more news about nonmedical dust proof mask, you can visit official website.

Since the onset of the Corona pandemic, most countries around the world have made masks mandatory for public spaces, mass transit and stores. In Germany, too, masks were compulsory in public buildings and offices, on trains and buses, and in cabs during the last Corona wave. At first, a self-made textile mask was sufficient, but later an FFP2 mask — known as KN95, N95 or P2 in other parts of the world was required. We explain what the different standards mean.

Simple face mask
During most of last year, the regulation in Germany requires a simple face mask to be worn as a minimum requirement in most public areas. This is a piece of cloth that completely covers the mouth and nose. Even a bandanna or scarf would qualify. When you exhale, it inhibits the flow of air and therefore the distance that germs can travel. And this already significantly reduces the risk of infection for other people.

The purpose of such masks is not to protect the people wearing them from infection: They protect the people everyone else from the wearers' germs. Because transmission is frequently caused by asymptomatic people, everyone is a potential virus carrier.Such medical face masks are the professional equivalent of the cloth mask. They consist of thin disposable tissue and fleece and are used by doctors and assistants to primarily to prevent their patients on operating tables from being infected with germs and pathogens.. If the wearer of the mask coughs or sneezes, for example, most of the droplets from the mouth and throat get caught in the mask.

This only works if the mask is changed regularly and disposed of hygienically and safely. In surgery, doctors must change their mask at least every two hours. If a mask of this type is worn repeatedly, it quickly loses its effectiveness.

During the pandemic, higher-quality masks with better filtration have become the standard practically everywhere in the medical profession. Although the virus usually enters the body through the mouth or eyes, the hands play an important role in infections.

If you decide to wear a mask, you should probably also opt for protective goggles. The surgical masks, albeit less effective in keeping the viruses out, merely function as a constant reminder not to touch your nose with your hands when it itches. Neither should you rub your eyes.

FFP half-masks offer better protection
In addition to surgical masks, which look more like multilayer disposable kitchen towels, there are also half-masks with a real filter effect. These are more familiar to those who work in dusty environments or with aerosols. They are available either as disposable masks, usually made of strong pressed cellulose with a filter element and an exhalation valve, or as plastic masks in which a suitable filter is then inserted.

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