صدای تهویه

Fiat Panda - Adjust ventilation nozzles.

Room tone, ventilation hum 3.

Room tone, ventilation hum 2.

factory steam vent (close perspective)

factory vent from medium distance

City library - large room, ventilation, muffled walla.

Engine room tone - low fan hum, sparse water drips.

Engine room tone - close ventilation fan, buzzing vibrations.

Elevator room tone - idle, noisy ventilation fan.

Roomtone - empty room with lively people talking in the next room.

Roomtone - Small room ventillation noise with audible people in the next room.

Ventilation room tone - noisy fans, low.

Hotel hall ambience - ventilation, lights buzzing slightly.

Air conditioner in a household - running - waterline - fluid rushing, rattling, and fluctuating - high.

آسانسور roomtone - با صدای بلند وز وز فن کم تهویه همهمه ساینده.