Am-Finn Sauna and Steams' Power Zone 400 is the industry's first sauna and steam automatic sanitization system. The Power Zone 400 is environmentally friendly and reduces the use of toxic chemicals and costly hours dedicated to cleaning your steam room. Traditional tile steam rooms require weekly deep cleaning of the tile and grout in order to keep the steam room environment clean, leading to discoloration and deterioration. Additionally, tiles and bonding materials used in traditional steam rooms are porous and therefore harbor and promote the growth of molds and bacteria. Whether you have ceramic tiles, natural stone, glass or fiberglass, the Power Zone 400 gets the job done, leaving behind only the fresh, clean smell similar to what you'd find after a recent thunderstorm.