I cleaned up the valve sound from https://freesound. Org/people/grotelue/sounds/96935/used audition to do noise reduction and manually edited out the people talking in the background.
Raw sound of an electric home fan in two takes, far and near the fan. Captured in a middle size living room (some reverb) with zoom h4n. Normalized/render in reaper.
A close-up recording using the m/s technique. It is the recording of a simple small-sized fan. I really liked the low-frequency sounds it generated when i got the mic close. All my sounds are public domain and can be used by anyone in any way they want. You can support me here: https://www. Buymeacoffee. Com/chrd.
Computer fan blowing: blowing air, going all woosh. Can be used as a generic ventilation sound. Recorded using audacity, mono zingyou zy-ud1. Can be looped.