Feliway Help! is ideal for temporary stressful situations, such as: Weekends or short trips away from home Friends/family over for a party Redecoration or changes at home Returning home after a stay at the vets Helps to reduce the common signs of feline stress (scratching, urine spraying and hiding). How to use: Plug in ideally 1-2 days before the anticipated stressful event Plug into a standard electric socket in your cat's favourite room Leave the diffuser plugged in day and night for best calming results The diffuser covers an area of up to 50m² (approx a 2 bed house) Avoid plugging in the diffuser behind curtains or furniture, near open doors or windows, as it will not work properly 1 cartridge = 7 day supply.