Comfort Zone Cat Calming Diffuser Refill, 30-Day Pheromone Support

Comfort Zone Cat Calming Diffuser Refill is a pheromone refill designed to help reduce common signs of stress in cats, with one refill providing up to 30 days of support.

• Compatible with Comfort Zone cat calming diffusers — use it with a diffuser to provide calming pheromone support.
• One-room coverage — focus support in the room where your cat spends the most time.
• Drug-free and fragrance-free formula — provide pheromone support without added fragrance or drugs.
• Vet recommended and backed by more than 20 years of Comfort Zone cat pheromone care — a familiar option for everyday stress support.
• Diffuser safety tested — the Comfort Zone diffuser meets Intertek electrical safety testing and is certified to UL standards.

Changes in routine, unfamiliar visitors, a new environment, or time alone can be stressful for some cats. This refill is made for those everyday situations, helping create a more familiar-feeling space at home. It is intended to support calmer behavior, including fewer stress-related behaviors such as urine marking and scratching. Use it in the room your cat uses most to target support where it may be most helpful.

How does the Comfort Zone refill help with cat stress?

The formula mimics cats’ natural calming pheromones, which cats recognize as a signal that their space is safe and familiar. It provides continuous support while the diffuser is in use, rather than requiring a direct application to your cat. Most cats may begin showing improved behavior within as little as one week, with continued benefits through regular use.

• Made to support calmer, more relaxed behavior at home.
• Targets common stress-related behaviors, including urine marking and scratching.
• Designed for everyday stressors such as routine changes, visitors, and time spent alone.

Which diffuser does this refill fit, and how much space does it cover?

This refill works with Comfort Zone cat calming pheromone diffusers only; a compatible diffuser is required for use. Each diffuser and refill is designed to cover one room, so it can be placed in an area where your cat spends much of its time. Comfort Zone diffusers are reusable for up to 12 months, while the refill is replaced monthly to maintain ongoing support.

• Compatible with all Comfort Zone cat calming pheromone diffusers.
• Not a standalone product: a Comfort Zone diffuser must be used with the refill.
• One room per diffuser and refill.

How should I set up and replace the refill?

Plug the diffuser upright in an open area with four feet (1.2 m) of clearance around the unit. Keep it away from positions under shelves, behind furniture, or near vents or windows, so the surrounding area remains open. Replace the refill every 30 days for continuous support. The refill system is designed for easy, mess-free use; the diffuser is the electrical component and has been tested to meet electrical safety standards.

• Position the diffuser upright and leave four feet of open space around it.
• Avoid placing it under shelves, behind furniture, or beside vents and windows.
• Replace the refill monthly; the diffuser can be reused for up to 12 months.

Comfort Zone Cat Calming Diffuser Refill suits cat households looking for ongoing, drug-free and fragrance-free pheromone support in a specific room, especially when everyday changes may be affecting a cat’s behavior. It is a refill for Comfort Zone diffusers, not a diffuser on its own, and provides a room-focused way to maintain a familiar-feeling home environment.