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  1. 2021年5月19日 · Masks are coverings that cover the wearer’s nose and mouth. There are different types of masks: Face masks which are non-medical masks. Surgical masks which are also referred to as medical masks. It is important that the mask is worn properly over the nose and mouth and removed properly to protect yourself against COVID-19.

  2. 2024年3月1日 · Masks can also protect wearers from inhaling germs; this type of protection typically comes from better fitting masks (for example, N95 or KN95 respirators). There are many different types of masks that have varying abilities to block viruses depending on their design and how well they fit against your face.

  3. 2021年3月2日 · At around $12 for 75 masks, the FLTR General Use Face Mask, sold at Costco, is one of the least-expensive surgical-style masks we’ve seen. However, it isn’t FDA-cleared.

  4. 2022年1月28日 · KF94. Kyungin Flax KF94 Sarah Kobos/Wirecutter. The KF94 is a high-quality mask that folds flat and is made in Korea. It is designed specifically for the consumer market. The KF stands for ...

  5. en.wikipedia.org › wiki › Face_maskFace mask - Wikipedia

    Face mask may refer to: an item of protective equipment that primarily guards the airways: Respirator Surgical mask Cloth face mask Dust mask Diving mask, for use underwater Facemask (orthodontics), used for correcting teeth misalignments Facial mask, used for cosmetic skin treatment Face mask (gridiron football), in sports A mask for the face ...

  6. 2020年3月31日 · Three tests have been conducted in the laboratories of the CUHK and the HKSP: 1.Scan the fiber structure under an electronic microscope; 2.Examine the efficacy in filtering aerosol; 3.Cough simulation test with fluorescent solution. The tests conducted by the Taskforce included 2 aspects: re-using surgical masks and testing DIY face masks.

  7. FACE MASK翻译:口罩, (某些运动保护头盔的)面罩, 面膜。了解更多。 Briefly, the animal was fitted with a bias flow face mask, and room air was drawn through side ports at a rate of at least 6000 l min21 during exercise.

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