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World's No. XNUMX "Tomitake" simulation Difference in splash prevention "nonwoven fabric"

　
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On the other hand, in the case of the non-woven fabric mask, small blue droplets hardly pass through.　

How different is the effect of preventing the spread of droplets (himatsu) depending on the material of the mask?The answer is on the 26th, the best spa in the world ...　→ Continue reading

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