QED AP4Plus HDPE If you are dealing with

If you are dealing with organics

The ultimate personal air sampling pump delivering enhanced performance

All Andersen High Volume Air Samplers feature accurate collection of total suspended particulates exceeding EPA specifications

additional data will be collected along with the audio

QED AP4Plus HDPE If you are dealing withEasier to Disassemble and Clean The AP4+ was made easier to clean by using 3 bolts to attach the pump inlet and open up the pump. This is easier than having to rotate the inlet multiple turns to unthread it from the center tube inside the pump, especially under field conditions of silt, deposits and coatings. Removing the inlet is also aided by the new, precision ID pump casing, ensuring a more controlled fit. The new pump casing's smoother internal