Section 444.472 - Ventilation1. Indoor spas, shower rooms, dressing rooms and toilets of public spas must be properly ventilated.2. Ventilation systems for indoor spas must be designed to prevent direct drafts on the bathers.3. There must be at least five air changes per hour in the area in which an indoor spa is located, including spas located adjacent to enclosed swimming pools.4. All interior rooms must be ventilated to the outside and in such a way that they do not remain excessively damp.Nev. Admin. Code § 444.472
Bd. of Health, Public Spa Reg. Art. 9, eff. 11-27-79