NIOSH tests products for compliance with these regulations and issues a certification for products that comply.

NIOSH负责测试这些产品,确认其符合认证标准,并发出认证证书.

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And if you are allergic, wear an NIOSH N 95 mask to reduce exposure to small particles.

如果你也过敏的话, 戴上NIOSHN95面罩减少小颗粒的接触面.

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