Audi S1 Tyre Compressor

[Willwors]

I was on my way out to buy a new foot pump for the tyres when I spotted an air compressor under the boot floor.

Question: are these only to be used in the case of a tyre repair (there is also a repair kit; no spare or space saver) or can I use it just to check tyre pressures / top up from time to time?

Many thanks