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How does an FFP2 Mask work?

How does such a mask work and what does the FFP designation mean?

Respiratory protection masks help protect our airways from the penetration of harmful microorganisms and particles.

This type of mask protects our respiratory organs from smoke, dust, aerosols and microorganisms and thus provides us with effective protection against COVID-19 infection. Its protective function is standardized in Europe according to the EN 149 standard. The product itself must also be provided with the necessary certificate attesting that it has passed safety, efficacy and quality tests.

THE BASIS OF PROTECTION IS A GOOD FILTER

The mask can be made of different filter materials, which have one thing in common: they can capture an adequate amount of harmful particles from the air. Therefore, an effective filter is the most important part of a mask.

In the following video, the principle of operation of this type of mask is visually explained. Although it refers specifically to N95s, the mechanism is exactly the same for FFP2s: the particles are trapped in the fiber when touched like a spider web. Plus one key feature: electrostatic filters act like a magnet, attracting particles that might otherwise escape.

CLASSES OF MASKS ACCORDING TO THEIR EFFICIENCY

Respiratory protection masks are manufactured in three filtration classes: FFP1, FFP2 and FFP3, while the abbreviation FFP itself comes from the English term "Filtering Face Piece". 

Before purchasing, you need to know what the mask will be used for (that is, what it should specifically protect us from), and then adjust your choice accordingly. If you want to protect yourself against COVID-19, choose class COVID-19, FFP3 or FFP2 masks (you should bear in mind that only some masks of this class can filter particles the size of the coronavirus). If you work in a dusty environment and want to protect your respiratory tract, a mask of the FFP1 class will offer sufficient protection.

FFP1 mask

These masks protect against larger dust particles and aerosols, which is why they are used, for example, in construction, but they will not protect us from COVID-19! Class FFP1 masks must trap at least 80% of airborne particles.

FFP2 mask

They protect against the finest dust and aerosol particles, and when these masks can filter 0.11 µm particles (COVID-19 coronavirus particle size), they provide effective protection against the virus. Class FFP2 masks must capture at least 94% of airborne particles.

COVID-19 mask (under regulation PPE-R / 02.075 version 2)

These masks are manufactured only for the protection of COVID-19, following the recommendations of the World Health Organization. For this specific use, the nominal protection factor provided by these filter half masks is the same as the nominal protection factor FFP2 defined in EN 149: 2001 + A1: 2009.

PPE-R / 02.075 version 2 is a test scheme for self-filtering masks based on the EN 149 standard, in which several sections of the EN 149: 2001 + A1: 2009 standard are applied, including the filter penetration test using an aqueous spray of NaCl. Masks conforming to this specification comply with the Health and Safety Requirements of Regulation (EU) 2016/425.

GOOD MASK COVID-19 masks belong to this group, and provide very effective protection against coronaviruses.

According to the results of the tests carried out by AITEX, the average filtration efficiency of our mask is 98% (average penetration at 120 mg of sodium chloride 3.5 min: 1.9%)

They are certified according to the EN 149: 2001 + A1: 2009 standard, modified by RfU PPE-R / 02.075 by the notified body 0161 (AITEX). CE 0161 marking according to the requirements of the European Directive 89/686 / ECCEN.

FFP3 mask

It serves as the most effective protection against bacteria, viruses (thus also against a new type of coronavirus), mold spores and toxic fine particles. Class FFP3 masks must capture at least 99% of the particles in the air, and their main drawback is their low breathability, which makes breathing difficult and can result in a shortness of breath feeling when used for a long time.

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