HME filter & BVfilter Pressure drop test equipment with Accurate testing This is the pressure drop testing machine.which use for HME Filter &BV filter &spirometry filter The respiratory system strainer-pressure drop test machine produced by our company is designed and manufactured according to the standard YY/T 0735.1-2009 6.3 pressure drop test standard content. It has the advantages of small size, light weight, easy to operate and so on. The internal components are imported