BA Air Supply QualityBA Air Supply Quality

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Air supplied to breathing apparatus should be clean and safe to breathe. The COSHH ACoP requires that the quality of air supplied to breathing apparatus should be assured.

Compressed air for breathing apparatus normally originates from a compressor system. Compressors themselves can generate and concentrate a wide range of contaminants, you should take extra care in ensuring air quality is maintained.

The breathing apparatus wearer’s life and health depends on the air supplied by the compressor, you should ensure that the air supplied meets the quality requirements and recommendations outlined in BS EN 12021. 



Health and safety law requires that periodic testing of the air supplied by the compressor is carried out and should cover the following:

  • Oxygen, Carbon Dixoide and Monoxide
  • Oil mist and water vapour
  • Odour & other contaminants 

 The frequency of such tests should be based on a risk assessment, COSHH ACoP recommends that periodic tests should be carried out at least every three months, and more often when the quality of air cannot be assured to these levels. Records of air quality tests must be kept for five years. 


We can carry out periodic testing of your compressed air to ensure that the control measures you have put in place are delivering the level of air quality required by health and safety law. Our occupational hygienists will attend your site to carry out the range of tests neccessary on each of your compressor air supply systems and issue you with an air quality compliance certificate in accordance with BS EN 12021 on completion. 



If you need any further assistance or would like to know more please get in touch and we will get back to you as soon as we can.

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