Many recreational operators of dive compressors may not be aware of the severe risk even well-serviced compressor units can pose to themselves, their friends and family.
A number of life-threatening air contaminants can enter SCUBA cylinders via the filing air compressor including carbon monoxide, excess carbon dioxide, oil residues and other hydrocarbons. As well as SCUBA cylinders, any high or low pressure system delivering breathable air can be affected, such as hookah units and breathing systems used in industrial applications.
Note: Pre-Christmas testing needs to done by the 19th of December!
Compressor air is tested for the presence of the following potentially dangerous issues:
A test certificate is issued outlining the results and a number of other relevant details. In a commercial application, this certificate is valid for three months. A copy of the test certificate can be viewed here: Example test certificate
In the case of a failed test, Air Purity can recommend several service agents nationwide.
Testing of remote air compressors could not be more straightforward:
Tests cost $250 including GST. This fee is payable before the sample bags will be couriered from the Air Purity office.
Set up in 2013, Air Purity Limited is an independent, and 100% owned subsidiary of the New Zealand Underwater Association. In 1982, NZ Underwater identified the need to ensure safe diving practices were supported by quality assurance procedures extended to dive cylinders and air filling equipment, thus developing the SCAP (Scuba Cylinder Audit Program). Today, Air Purity is a primary point of contact for clean breathing air testing, SCAP cylinder audit and certification, air-fill operator certifications, and recreational boat training courses specific to the New Zealand underwater community.