Making the world better, one answer at a time. The average amount is 60 - 70 gallons per day per person for indoor water use only.
A cardiac chair is designed specifically for the recovering cardiac patient, but is also used for the patient with respiratory illness. The chair can be folded completely out to become a bed or moved into an upright chair position while the patient is still on it. A cardiac chair makes it possible for a patient to go from sitting to standing without putting a strain on sutures. It is also used to encourage the patient to sit up, which speeds recovery.
An ergonomic chair is made to properly support your body for long periods of time. A non-ergonomic chair would be the type you find at a fast food restaurant or on some city benches where they discourage long term comfort usually to increase circulation.