Total consumption of analog 0-10v by hours

You are right, It is not possible to calculate the volume of m3 per period at the analog input.

The analog input is instantaneous values, like a speedometer in a car.

For an hour/day/month you can only view the arithmetic average.

What you are asking is a cumulative value, like an odometer in a car.
In D105 this is measured at pulse inputs, where consumption can be calculated over a period.
If you have an air flow meter with a pulse output, where 1 pulse is equal to the air volume m3, then connect this to the pulse input and there will be metering in m3 per hour/day/month.