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1·A typical full-face air-purifying respirator, used here with a hood and suit for extra protection.

常见的全面罩过滤呼吸器，这里与提供更多保护头罩和防毒服配合使用。

2·The supplied-air respirator uses the same sort of filter cartridge found in an air-purifying respirator .

供气式呼吸器使用同样与过滤式呼吸器一样的过滤罐。