While not temperature itself, the "smog" is intrinsically linked to the fan. If the player does not use the fan, the office fills with black smoke, obscuring the animatronics in the vents. Clearing this smog via the fan generates significant heat, forcing the player to alternate between visibility and temperature safety.
Temperature in FNAF 6 is not merely a background statistic but a central pillar of the survival loop. It is the primary counter-balance to the player's power usage. Mastery of the game requires the player to keep the temperature strictly regulated, usually hovering around the 60°F-70°F mark, to prevent passing out and to neutralize the speed advantage of heat-sensitive animatronics like Molten Freddy.
Fans often call vent malfunctions “overheating” because when vents fail, the computer warns about , attracting animatronics.
The ventilation fan is your primary cooling tool, but it generates significant noise that attracts animatronics. Managing the fan is essential for survival; turning it off makes you harder to find but causes the office to heat up sporadically.
The player has access to a located in the office.