Fan sound effects

Filmoscope: cooling fan, no slide change

3300 890

Hospital, fan running, air outlet

3836 993

Ventilation in the passenger compartment

3828 1130

Working ventilator in a hospital

3686 718

Medical ventilator

5312 1729

Wind generator: ventilation

3475 683

Dehumidifier turns on

4803 1315

Air conditioner is working

4872 1333

Air conditioner

401 5

Wind farm

615 6