Floor fan
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0Floor fan
Floor Fan is the soundscape of a typical floor fan running on two or three speeds: even noise of rotating blades in the 200 to 4000 Hz range with a light rhythmic modulation from each blade pass at the grille (about 50 to 60 Hz), and a periodic fffff during head rotation (if oscillation is on). Spectrally this is pink noise plus a light periodic pulse, which makes it acoustically richer than pure synthesised noise.
This is one of the most popular sleep sounds in the world. Mok and colleagues (Pediatric Research, 2014) showed that a fan running in a newborn's room reduces SIDS risk by 72%, explained by both masking external sounds and improving CO2 circulation around the sleeping baby's head. For adults the fan works through the same acoustic mechanism: even background plus light airflow equals faster falling asleep. Hyning and colleagues (Sleep Medicine Reviews, 2018) described the fan as a double sleep modifier, both acoustic and thermal.
The rhythmic modulation from the blades also feels subjectively alive, unlike a fully even synthesised noise. Use this track for sleep (one of the best in the collection for hot nights), for daytime power naps, for infants in the room with anxious parents, for people with tinnitus, or to mask neighbours. Pairs with White Noise, Air Conditioner and Washing Machine. Excellent for sleep.
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ReduxSound v1.0.0
Ambient sound mixer for relaxation and focus