Respiratory protective devices - Compressed air line breathing apparatus for use with a full face mask, half mask or a mouthpiece assembly - Requirements, testing, marking.

呼吸保护装置。与全罩式面罩、半罩式面罩或口罩一起使用的压缩空气导管呼吸装置。要求、试验和标志。

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Kilbane missed the session because he was having a protective mask fitted following the cheekbone fracture that he sustained at the weekend.

BBC: Kilbane remains in Republic frame

Each child has an individual first-aid kit and a protective mask.

NEWYORKER: Playdate

For this reason, he adds, there remains no scientific evidence that widely promoted protective measures such as hand washing and mask wearing will actually stop people from getting sick.

CNN: Study: Humidifiers may help fight flu