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Air Quality Test Results

Does the air you are breathing underwater whilst scuba diving, meet Australian standards? 

Scuba diving is a great pastime, but does require using life support equipment designed, to withstand pressure and water.
The air you breathe underwater, must be of high quality with a minimum of contaminants, to ensure your underwater safety. 

Allowing moisture to enter your scuba cylinder, either by incorrect fill procedures or draining the cylinder completely, will introduce contaminats that can shorten the life of your equipment and /or cause a malfunction that could become a major safety issue, underwater.

Should you find- your cylinder has been contaminated by bad air, has a distinct odour or taste, follow the guidelines below.

After dscovery and before you dive.
Return cylinder to source of fill, explain cylinder is contaminated and ask Fill station Manager to check.
If you are happy with their response or actions, then proceed with their recommendations.

Should a diver have breathed contaminated air at depth

  • Check diver for signs of CO poisoning
    i.e. Red finger nail beds, or inside of lips, headaches, dizziness, nausea or unconsciousness may also ensue.
  • Check divers LOC
  • Administer 100 % Oxygen, if available
  • Arrange transport to medical assistance preferably, HBC
  • Maintain watch on patient until medical help arrives
  • Inform officers, that patient has breathed compressed air at depth, that is suspected of being contaminated.
  • Send divers' computor for dive profile.
  • Do not administer fluids, keep patient warm, not hot. (shock management)
  • Isolate cylinder for testing.
  • Inform fill station of incident.
  • Express this patient must be maintained on Oxygen, for transport to hospital or HBC.


    To avoid breathing contaminated air, always test your air supply before use.

Step One: Have cylinder filled only at reputable air source.  Ask to sight latest air purity report, should be dated within three months.
Step Two: Smell supplied air before leaving fill station.
Step Three: Place white cloth or hanky over outlet, purge valve slightly and view for signs of rust or foreign material.
Step Four: Taste air for anything out of the ordinary, remembering air should not have any taste or odour.

How is your Breathing Air Quality Analysis Conducted?

As part of our bi-monthly scheduled analysis, your breathing gas undergoes a rigorous testing regime-
This analysis that gives an accurate report (at the time of testing) of your compressed breathing air being produced, onsite.

We test a sample cylinder, filled on the day of testing for the following components:

Carbon Monoxide (CO)
Carbon Dioxide (CO2)
Water Vapour (H2O)
Oil Mist
Delivered Air Odour Quality

Should a high reading be found, a quality assessment is made and the problem rectified.
All results are accurate at time of testing.

Pro-Dive Central Coast is proud of the fact, their quality of supplied Air easily meets and exceeds Australian Standards.

So are our clients, they include:

  1. Research Diving Network
  2. NSW Rural Fire Brigade
  3. Central Coast Council
  4. Gosford Fire Services, Rural Division
  5. Sanitarium Australia
  6. Masterfoods Australia
  7. Albany International
  8. Kariong Rural Fire Brigade
  9. Lake Munmorah Rural Fire Brigade
  10. Chittaway Rural Fire Brigade
  11. Charmhaven Rural Fire Brigade
  12. Norah Head Treatment works
  13. Bateau Bay Treatment works
  14. Thousands of local divers


    Test conducted every two months 

    Air Quality Management Test Results

    February 2021              Tested By: Bob Diaz
    Testing Allowance  Result
    Carbon Monoxide <10 ppm <0 ppm
    Oil <1 mg/m3 0 mg/m3
    Odours Slight None
    Water < 100 mg/m3 40 mg/m3
    Carbon Di Oxide 480 ppm 50 ppm
         19.02.2021

Air Quality Management Test Results

 April 2021              Tested By: Bob Diaz
Testing Allowance  Result
Carbon Monoxide <10 ppm  0 ppm
Oil <1 mg/m3  0 mg/m3
Odours Slight  None
Water < 100 mg/m3  30 mg/m3
Carbon Di Oxide 480 ppm  55 ppm
     27.04.2021

 

 

Air Quality Management Test Results

June 2020              Tested By: Bob Diaz
Testing Allowance  Result
Carbon Monoxide <10 ppm  <0 ppm
Oil <1 mg/m3  0 mg/m3
Odours Slight  None
Water < 100 mg/m3  35 mg/m3
Carbon Di Oxide 480 ppm  40 ppm
     01.07.2020

 

 

   

 

 

 

Air Quality Management Test Results

 August 2020              Tested By: Bob Diaz
Testing Allowance  Result
Carbon Monoxide <10 ppm  <0 ppm
Oil <1 mg/m3  0 mg/m3
Odours Slight  None
Water < 100 mg/m3 40 mg/m3
Carbon Di Oxide 480 ppm 50 ppm
      19.08.2020

 

Air Quality Management Test Results

 October 2020              Tested By: Bob Diaz
Testing Allowance  Result
Carbon Monoxide <10 ppm  0 ppm
Oil <1 mg/m3 0  mg/m3
Odours Slight  None
Water < 100 mg/m3  15 mg/m3
Carbon Di Oxide 480 ppm  40 ppm
     24.10.2020

 

Air Quality Management Test Results

 December 2020              Tested By: Bob Diaz
Testing Allowance  Result
Carbon Monoxide <10 ppm  0 ppm
Oil <1 mg/m3  0 mg/m3
Odours Slight  None
Water < 100 mg/m3  10 mg/m3
Carbon Di Oxide 480 ppm  35 ppm
     14.12.2020