Wörterbuch (en): Air valve / Damper / Air vent / Air flap

- Air valve / Damper / Air vent / Air flap
  
fr: 
Clapet (m) / Aération (f) / Volet de ventilation (m)
 
es: 
Compuerta de aire (f) / Válvula de aire (f) 
 
pt: 
Aba de ventilação (f) / Válvula de membrana (f) 
 
A flap that regulates the air supply.