Low Volume Sampler

The Low Volume Sampler is used for measuring the concentration of suspended particulate, indoors and outdoors. The particles sampled on the filter can be gravimetrically evaluated and analyzed with regard to dust components. The air sample is drawn in through the inlet by a vacuum pump. The air flow rate is measured by an orifice plate installed between the filter and the vacuum pump. The air sample flows through a separator for the abrasive carbon dust of the pump vanes to the outlet at the bottom of the device.

The Low Volume Sampler has 3 inlets for PM10, PM 2.5 and PM1.0 measurements, flow rate of 1.0 m3/h, the sampling time could be between 1 hour and 999 h. The diameter for sample filter is 47-50 mm.

The suspension particles concentration can be determined using a relation between the filter mass before and after exposure and the total air volume drawn.