(Gas filters (including vent filters) should be dry. Condensate on a gas filter can cause blockage during use or allow for the growth of microorganisms. Use of hydrophobic filters, as well as application of heat to these filters where appropriate, prevents problematic moisture residues. 气体过滤器(包括排气过滤)应当是干燥的。气体过滤器上的冷凝液会导致微生物繁殖而引起堵塞。使用疏水性过滤器以及在这些过滤器上加热以防止类似潮湿所引起的问题。)这个是摘抄出来的一段话。