Feliway classic diffuser + 1 month refill of Ceva-Sac is an excellent solution for cats to feel comfortable at home and avoid behaviors such as urine marking, scratching furniture or hiding. Improve the relationship with your cat, creating a pleasant environment at home. The diffuser must be checked monthly and renewed every 6 months to ensure optimal effect. Each diffuser covers an area up to 70 m2. Continuous effect, provides constant comfort and security for your cat. It is recommended to screw the container into the diffuser and connect it to a socket. Keep the diffuser plugged in at all times. Avoid plugging the diffuser under bookshelves, behind doors, curtains, or furniture because it will not work properly. Store in a cool, dry place, away from heat and moisture.