(1) The chief executive must ensure, as far as practicable, that detainees—
(a) have access to the open air for at least 1 hour each day; and
(b) can exercise for at least 1 hour each day.
(2) The standards under subsection (1) may both be satisfied during the same hour on any day.
(3) For chapter 10 (Discipline), this section is taken to provide an entitlement for each detainee in relation to access to the open air and exercise.