ZENIFEL™ Gel Diffuser uses feline facial pheromone analogues (F3 fraction) and catnip extract to help cats of all ages feel comfortable and secure in stressful situations. ZENIFEL™ Gel Diffuser allows for 2 months of calming effect. It is portable and can be placed where your cat spends most of its day. Lasts up to two months (twice as long as the main competitor). Eco-friendly: No electricity required and packaged in a recyclable box. The stylish, natural beige design blends in with any room and works effectively in spaces up to 750 square feet and can be moved anywhere.