Air Quality Testing

Breathing air lines are air-fed respiratory protective equipment (RPE) worn by employees undertaking specific tasks in hazardous atmospheres. These typically include:

  • Spraying of paints
  • Spraying of wood/metal lacquers or glues
  • High dust production processes e.g. powder painting, decanting of powders etc
  • Working in confined spaces with hazardous atmospheres
  • Processes that use toxic gases or asphyxiates
  • For use in case of emergencies i.e. spillages

The air often originates from the factories general compressor and is passed through a special filter before reaching the operator. It is imperative that this air is tested as to its quality. The operators are breathing in this air directly and would therefore be exposed to any impurities entrained or resident in the compressed air system.

Each test is carried out in accordance with COSHH Reg 9(3) and BS EN 529:2005: ‘Respiratory Protective Devices – Recommendations for Selection, Use, Care and Maintenance – Guidance Document’ and with BS EN 12021 ‘Compressed Air for Breathing Apparatus’.

It involves the testing of the air supply for specific toxic gases and other physical parameters. These include:

  • Carbon monoxide
  • Carbon dioxide
  • Oil mist
  • Water vapour
  • Odour
  • Total particulates
  • Air flow
  • Temperature

We will also identify and test for any other contaminants which could possibly become entrained into the airline via the compressor e.g. Nitrous fumes in car body repair shops, or solvent vapours from coating or glass reinforced plastic layup (GRP).

Under the current COSHH Regulations, filter units are required to be tested at quarterly intervals (every 3 months) and more frequently when the quality of the air cannot be assured.

NOHH Ltd can undertake the full range tests necessary and will provide you with a full professional report describing the testing and highlighting non-compliances where appropriate. We will also recommend remedial action where necessary.