Air & Nitrox Fills

The air we breathe as divers is possibly one of the most overlooked aspects of a safe and enjoyable dive. A high quality or 'grade' of air is essential in ensuring that no ill-effects are experineced by anyone on any dive, and to ensure that nitrox fills can be safely provided.

CompressorAs a result our air filling system is state of the art, and has only recently been installed. The Bauer Mini Verticus II compressor supplies triple filtered air that is continually assessed by the in-built Securus electronic monitoring system. As an added security, full air-purity checks are carried out on a regular basis.

In addition to the new compressor, we have also installed four 60 litre storage banks that allow us to supply the triple filtered air up to 300 bar with minimal waiting times.

The nitrox blending panel also allows any of our qualified Gas Blenders to accurately partial pressure blend any nitrox mix up to 99%.


ALL 232 bar AIRFILLS (any size cylinder) £3.50

ALL 300 bar AIRFILLS (any size cylinder) £5.00

Alternatively you can save yourself some money with our pre-paid airfill deals.....


BUY 10 FILLS @ £3.50 and GET 5 FREE (works out at £2.23/fill)

BUY 15 FILLS @ £3.50 and GET 10 FREE (works out at £2.10/fill)

Please ask in the shop for more details on this offer.



     3 litre        7 litre       10 litre       12 litre       15 litre  
 UP to 27% £4.00  £4.00  £4.00  £4.00 £4.00 
 UP to 32% £4.50 £4.50£5.00  £6.00 £6.50
 UP to 36% £5.00 £5.00    £5.50     £6.50 £6.50
 UP to 40% £5.50 £5.50£6.00 £6.50 £6.50
 UP to 50% £6.00 £6.50 £7.50  £10.00 £12.00
  UP to 80%   £6.00 £8.00£9.50 £13.00 £16.00
     UP to 100%    £6.00 £10.00£14.00 £24.00 £30.00

 Please Note :

  • Any cylinders presented for filling (air or nitrox) must be compliant with all current HSE standards.  
  • Anyone wishing to obtain a nitrox fill will be asked for proof of a relevant nitrox qualification on their first visit.
  • Anyone wishing to obtain a nitrox fill will be asked to personal verify the content before taking it away.



 Cardiff Scuba does offer trimix fills.

Cost is based on £0.025 per litre of helium used + Standard Airfill charge + £0.015 per litre of oxygen used.

We do not have a bootser pump at this time. We employ a cascade filling method. As such we would ask  that you drop your cylinders for fill to us in advance and allow at least 3 hours for accurate fills. 

 We do hold a helium analyser on site.