This ventilation grille with mosquito net allows the air introduction or extraction between one room and the outside. It is made of 0.6 millimetre thick aluminium. It has a mosquito net to prevent any insect from passing through the grille and entering the room. Available in various sizes (10 x 10; 15 x 15; 17 x 17; 20 x 20; 25 x 25; and 30 x 30 centímetres). Available with an air passage from 25 square centimetres, for the smaller model, to 240 for the bigger ones. It is supplied in pack or in a single unit.