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FFP2 masks refer to masks that meet the European (CEEN149:2001) standards. Filtering ≥94% of aerosols, useful for fight agaist coronavirus. Material: Anti-particulate masks are mostly constructed with two layers of non-woven fabric inside and outside, with a filter cloth (melt blown cloth) in the middle layer; Filtration principle: Filtering fine dust mainly depends on the filter cloth in the middle. Because the melt blown cloth has the characteristic of static electricity, it can absorb small particles. Because the fine dust is adsorbed on the original filter, and the original filter cannot be washed with static electricity, the self-priming filter anti-particulate respirator needs to replace the original filter regularly

The lung's a magnificent organ that perform a multitude of vital functions every other of our lives. Breathing is the most essential of these functions. With each breath, the lungs take in oxygen and take away carbon dioxide. The air we respire enters the lungs via the main windpipe.