Daily needs per crew member per day [9].

Table 1: Daily needs per crew member per day [9].

Water needs	Units	Value
Drinking-Water	kg/CM-day	2.00
Food Rehydration Water	kg/CM-day	0.50
Urinal Flush	kg/CM-day	0.50
Personal Hygiene	kg/CM-day	0.40
Hand wash	kg/CM-day	4.10
Shower	kg/CM-day	2.70
Medical Water	kg/CM-day	0.50
Oxygen needs	Units	Value
Oxygen consumed in the habitat	kg/CM-day	0.83
Leakages in the habitat	kg/day	0.50
EVA Metabolism losses	kg/CM-day	0.35
EVA Leakages losses	kg/CM-day	0.43