Hi all,
I am hoping someone could offer some assistance. I was advised a fairly simple way of calculating the require air flow rate required to condition an area can determined by the following formula:
Room volume (m3) x Air changes = Air flow (l/s)
I was also advised to use a quantity of (10) for this 'air change'. (As an average).

Can anyone advise how you actually calculate this '10' air changes?

Thanks in advance for any assistance?