Feliway friends diffuser + refill 1 month from Ceva-Sac is an easy-to-use solution to reduce conflicts between cats that live together, and avoid signs such as fighting, chasing, blocking and staring. Help your cats get along better at home. The diffuser should be checked monthly and renewed every 6 months to ensure optimal effect. Each diffuser covers an area of ​​up to 70 m2. Continuous effect, provides constant harmony. Contains European plug. 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.