Air and contamination control空气和污染控制空气和污染控制Air and contamination control空气和污染控制Without air we cannot breathe,so as long as we require personnel to operate our processes we need an air supply.没有空气我们无法呼吸，所以只要我们需要人员操作我们的工艺，我们就需要空气供应。Even in clean rural areas air is contaminated with about 108 particles of 0.5m and greater per m3,many of these will be microorganisms depending on the nature of the area and the season of the year so air is a contamination problem即使在干净的农村地区，空气也被大约即使在干净的农村地区，空气也被大约108颗每
