HPE testing

Diversified technology company 3M is promoting a new system which is claimed to provide a completely objective test of the 'at-ear' protection being offered by hearing protection equipment (HPE).

Compatible with a variety of 3M HPE products, the 3M EARfit Validation System generates, in eight seconds, a personal attenuation rating (PAR) which indicates a worker's noise reduction level for that given HPE item. This verifies that the required legal level of protection is being offered and gives an indication of whether products are correctly fitted so further training can be provided if necessary.

The system's dual-element microphone measures across seven frequencies (125Hz - 8KHz), providing a completely objective reading, so there is no need to rely on subjective test responses from individual workers.

The company says the system will be of particular value to organisations seeking to implement a hearing conservation programme, with the flexibility to establish baseline values for new workers; identify workers who may be receiving inadequate protection; and validate protection levels received by workers in high noise areas.