Thanks Dave. That air bomb seems to be very similar to the Comma Air con cleaner aerosol that you set off in the car.
I used that when I got the car and to be fair it was effective for a good while but I was thinking about the Ozone cleaning as a more deep cleaning alternative.
I might pick up a Bilt Hamber one anyway with my next order, I need to restock on snow foam before I run out and also replenish my reserves of IronX too.