A normal human cannot live without 3 weeks of food, 3 days of water, or 3 minutes of air it is said. Normal Puriti can survive 3 days without air, 3 weeks without water, and 3 months without food. Of course this doesn’t mean they will be healthy or completely fine by the end of it, but they will be better off than other people who go that long with the essentials. Some Puriti can even do double that time, going 6 days without air, 6 weeks without water, and 6 months without food. Of course such occasions are rare, and maybe about 50-100 individuals are born a century with this type of survivability