在本期中，我们重点向您介绍有关正压呼吸器的使用方面的问题。所谓正压呼吸器，是指在你所佩戴的面罩内的空气压力比面罩外的空气压力大，也就是你不用以吸气作为动力，就可以吸入空气。正压呼吸器可分为两大类，即过滤式和供气式。过滤式多指电动送风式，也就是通过电源... In this issue, we highlight the use of positive pressure respirators. The so-called positive pressure respirator refers to the air pressure in the mask you wear larger than the air pressure outside the mask, that is, you do not have to inhale as a motivation, you can inhale the air. Positive pressure respirators can be divided into two categories, namely, filtration and gas supply. Filter multi-finger electric blower, that is, through the power ...