I did some research and found that the average human requires 550 L of
oxygen per day which means that :
(550 L O2 / day) x (1 day / 24 hours) = 22.9166667 L O2 / hour or
22916.67 mL O2 / hour
1 mL = 1 cm^3
22916.67 mL O2 / hour = 22916.67 cm^3 O2 / hour
Now convert that volume from cm^3 to nm^3
22916.67 cm^3 O2 / hour = 2.29167x10^25 nm^3 O2 / hour
So for 1 hour’s worth of O2, we need a volume of 2.29167x10^25 nm^3
