Shake well before use. This treatment does not stain but always first performs a test on a non-visible part of the object to be treated. Spray directly on objects likely to have been in contact with lice, holding the aerosol 30-40 cm from the objects to be treated. Proceed with brief pressure without prolonged spraying. Spray 27 g of product per m², i.e. 31 seconds of spraying per m² (this dose corresponds on average to 10 seconds for the 2 sides of a 40x40 cm cushion). Ventilate the room well. Leave to act for 10 minutes then vacuum the dead lice. In case of re-infestation, renew the application.