Fan sound effects

Filmoscope: cooling fan, no slide change

3228 888

Hospital, fan running, air outlet

3796 993

Ventilation in the passenger compartment

3743 1130

Working ventilator in a hospital

3515 717

Medical ventilator

5158 1729

Wind generator: ventilation

3445 683

Dehumidifier turns on

4776 1315

Air conditioner is working

4817 1331

Air conditioner

365 4

Wind farm

530 5