1. Turn the device on before the night, to act preliminarily and to avoid the mosquitoes entering the room. Thanks to its very low energy consumption (in 150 hours, Friend consumes as much as a 60W light-bulb does in ten minutes), it can always be plugged in.



2. In wider rooms, (more than 15 mq), it is preferable to use two devices simultaneously, connected to two different plugs, to ensure a total covering. The same is for rooms with carpets, with fabric wallpapers or that are furnished with wide upholstered furniture or with thick curtains: as a matter of fact, the rooms' fabric components can absorb a part of the ultrasounds, thus reducing the device's action.

3. Check that the plug is not hidden or covered by furniture (fig. 1) or curtains (fig. 2).

4. You can use Friend also when the window is open, as long as the plug is not too close to the window and that the device is oriented towards the inside of the room (fig. 3 e 4).

5. If, in the room to protect, there are plugs on different levels, preferably use the higher ones (fig. 5).



6. In carpeted rooms, if all the available plugs are less than 30 cm from the floor, it is better to use an extension cable and place the device in a higher position, for example on a desk or on a shelf, orientating it towards the inside of the room (fig. 6).