If a site has no air, most people buy a dive tank to use as an air reservior. This tank is gassed up in a dive centre and you take air of it.
An important point is........
COMPRESSED AIR IS AT A VERY HIGH PRESSURE AND CAN BE LETHAL IF NOT USED CORRECTLY.
As far as co2 is concerned, you should be able to get it at any site, but you can rent a large co2 bottle, which will give you about 50 20oz fills, from Air Products or BOC.
Most markers that run on co2, will happily run on air, but not the other way round. Air only markers are more expensive, because they are better quality.
If you need any more info or advice, my mobile is 07773 364246.
An important point is........
COMPRESSED AIR IS AT A VERY HIGH PRESSURE AND CAN BE LETHAL IF NOT USED CORRECTLY.
As far as co2 is concerned, you should be able to get it at any site, but you can rent a large co2 bottle, which will give you about 50 20oz fills, from Air Products or BOC.
Most markers that run on co2, will happily run on air, but not the other way round. Air only markers are more expensive, because they are better quality.
If you need any more info or advice, my mobile is 07773 364246.