breathing mask

If you're not feeling well or have symptoms such as fever, fatigue, cough and trouble breathing, a mask is also needed to prevent you from spreading viruses to others.

如果你觉得不舒服或者是出现发热、乏力、干咳、呼吸困难等症状，也应该佩戴口罩，防止病毒传染给其他人。

She was breathing using an oxygen mask.

她正在用氧气面罩呼吸。

Wear a breathing mask with an active carbon filter; do not inhale fuel vapours.

请佩戴带有活性碳过滤器的呼吸面具；切勿吸入燃油蒸气。

Connected with the exhaust vent of the breathing mask or the respirator by corrugated tubes, this device gathers exhalation containing a large amount of causative agents through the completely leakproof ductwork and then expels purified air after multiplicate disinfection by high temperature, high pressure and chemical disinfectant.

该装置以波纹软管与呼吸面罩或呼吸机上的排气孔连接，于完全密封的管道系统收集含有大量致病因子的呼出气，经高温、高压及化学消毒剂等多重杀毒灭菌后排出清洁空气。

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。