Yellow Dust Mask: Structure and Materials (Part 1)

Let's look at the specific structure of the filtering system of the yellow dust masks that we wear every time. The facial masks that Koreans wear every day consist of three different types of core filters that depends on the mask, which are KF (Korea Filter) 80, 94, and 99, which can block 80%, 94%, and 99% of the air particles to go through. KF 99 is not really the best solution as you may think, because the higher the percentage, the more particles it may be able to block, but the harder it is for the host who is wearing it to breathe properly. When selecting what type of mask to use, it is more of a priority to consider your breathing conditions.

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By courtesy of:http://heaterrugalat1454heatersatucooker.paltec.info/are-premium-air-filters-worth-it

Through research, I learned that these filters were made of fibrous cellulose, and inspired me to know more about cellulose.

Cellulose:
Cellulose, a linear polymer of D-glucose units (two are shown) linked by β(1→4)-glycosidic bonds.







Cellulose, also known as (C6H10O5)n, like the chemical structure above, consists of carbon (the bending points), hydrogen, and oxygen. Interestingly, the chemical formula has n, indicating that this unit is repetitive and forms a polymer.

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