PUF Filter Inserts for 25mm IOM type Heads
PUF foam inserts for 25mm IOM type inhalable sampling head
PUF Respirable foam insert allows the standard IOM head with a 25mm filter to be use to collect Respirable Fraction dust samples.
These PUF (polyurethane foam) filters are available with a pore size which corresponds to the respirable and the thoracic fraction. Respirable particles deposit on the filter at the back of the cassette and can be analysed separately. The larger particles are collected in the PUF. For the total inhalable dust result would be the gravimetric analysis of the PUF and the filter together. You would operate the IOM type head at 2l/min.
Sold in packs of 10 inserts.
Can be used with the IOM head as shown below:-