FELIWAY Optimum Cat Calming Diffuser Kit with 1 Refill, 4-Week Support

FELIWAY Optimum is a patented-pheromone plug-in diffuser kit with one refill, designed to help reduce common signs of stress in cats.

• Each refill provides up to 4 weeks of continuous support — maintain calming support when used as directed.
• One diffuser covers up to 700 square feet (65.0 m²) — support cats across a large living area.
• Cat parents reported a 77% reduction in urine spraying — a specific result related to a common stress behavior.
• 72% of cat parents noticed less tension between their cats — support calmer interactions in multi-cat homes.
• Non-sedating and safe for use around cats, kittens, people, and other pets — add calming support without sedation.

Changes at home, fearful reactions, hiding, scratching, urine spraying, tension, and conflict can all be signs of stress in cats. FELIWAY Optimum is made to provide ongoing pheromone support in everyday living spaces, including homes with more than one cat. FELIWAY Optimum is the brand’s best option for reducing common signs of cat stress, based on a survey of 200 veterinarians. Every cat is different, and results may vary with other pets and environmental factors.

Which signs of stress is FELIWAY Optimum designed to help with?

FELIWAY Optimum is designed to help reduce stress-related behaviors such as urine spraying, scratching, hiding, and fearful reactions to change. Its patented pheromone formula is intended to help cats with more signs of stress in more situations and to calm cats better than before. The diffuser also helps ease tension and conflict between cats, making it relevant for both individual-cat and multi-cat households.

Cat-parent feedback provides specific examples of the behaviors the diffuser is intended to address. These results are reported observations, not a guarantee for every cat; each cat’s response can differ.

• Helps address fear-related behavior as well as changes in the home.
• Supports calmer interactions between cats alongside support for individual stress signs.

How much space does it cover, and how long does a refill last?

Each FELIWAY Optimum diffuser covers up to 700 square feet (65.0 m²), and each refill provides up to 4 weeks of continuous calming support when used as directed. This coverage makes the diffuser suitable for large living areas. The plug-in is intended to provide 24/7 support, rather than a one-time calming session.

For use, plug the diffuser into an open outlet with its vents pointing upward. Leave at least 4 feet (1.2 m) of clearance around it, then follow the label instructions. Keep the vents unobstructed so the plug-in can be used as directed.

• Designed for ongoing use in a living area, with coverage up to the stated area limit.
• Allow the required clearance around the diffuser when choosing an outlet.

What comes in the kit, and who can use it?

The FELIWAY Optimum Cat Calming Diffuser Kit and 1 Pack Refill includes a plug-in diffuser and one refill. It is suitable for cats of all ages, including kittens, and is safe for use around people and other pets. FELIWAY Optimum is not a sedative; it provides pheromone-based support when the diffuser is plugged in and used as directed.

The refill supplies the formula for the diffuser, while the plug-in format provides continuous support in the area where it is used. This makes the kit suited to households looking for ongoing support for stress signs or tension between cats as part of their everyday environment.

• Kit contents: one diffuser and one refill.
• Suitable for cats of all ages, with non-sedating support.

FELIWAY Optimum is best suited to cat households seeking continuous pheromone support for behaviors such as spraying, scratching, hiding, fear, or tension between cats. It fits homes that can place the diffuser in an open outlet with the required clearance and use it according to the label instructions.