1 / 7FELIWAY Optimum Cat Calming Pheromone Diffuser Starter Kit
FELIWAY Optimum is a plug-in pheromone diffuser starter kit intended to help address common stress-related behaviours in cats. The listing claims coverage up to 70m² and four weeks of support per refill, while customer feedback reports both calming experiences and inconsistent results.
At a glance
- The listing says the diffuser is intended to help with urine spraying, scratching, fears, tension and conflict.
- One refill is claimed to provide four weeks of continuous calming support.
- The stated coverage is up to 70m², with results claimed in as little as one week.
Often bought together

Feliway Classic Cat Calming Odourless Spray, 60ml | Comforts Cats at Home and Reduces Stress During Travel And Vet Visits, Targeted Action, 60ml bottle
£12.99

FELIWAY Optimum Cat Calming Pheromone Plug-In Diffuser Refill, 3 Refills | Advanced Solution to Help Solve Signs of Stress in Cats and Kittens, Drug-Free Odourless Diffuser Refill, 30 day supply
£56.00
Pros and cons
Pros
- A single diffuser is claimed to cover a relatively broad home area of up to 70m².
- The listed target behaviours make its intended role clear for cat owners considering pheromone-based support.
Technical specifications
12 specifications| Dimensions listed | 11.8 x 7 x 12.7 cm; 162 g |
|---|---|
| Weight listed | 162 g |
| Model | D92110B |
|---|---|
| Pet type | Cats |
| Life stage | All Life Stages |
| Item form | Pellet |
| Colour | Clear |
| Size | 48 ml (Pack of 1) |
| Number of items | 1 |
| Specific uses | Behaviour |
| Batteries required | No |
| EU energy efficiency label | A |
What to know before buying
- The four-week duration, coverage and behaviour-support statements are manufacturer claims, not guaranteed outcomes. Customer reports describe mixed effectiveness and some refills not lasting the full month. Use feedback as an indication of varied experiences, not a prediction for an individual cat.
Who is it for?
A good fit for
- Cat owners seeking a plug-in option to address stress-related behaviours such as scratching or urine spraying.
- Households wanting a claimed coverage area of up to 70m² from one diffuser.
Less suited to
- Buyers seeking guaranteed behaviour changes or a consistently effective outcome based on customer feedback.
- Buyers who do not want recurring refill costs, which some customers consider expensive.

Customer reviews on Amazon
- 5 stars
61% 61% - 4 stars
16% 16% - 3 stars
11% 11% - 2 stars
4% 4% - 1 star
8% 8%
Customer feedback includes reports that the diffuser calms cats and helps them relax, including when left alone, but effectiveness and behaviour changes are mixed. Some customers report no change or increased aggression, and refill value and durability draw concerns. These experiences matter if you are relying on the claimed four-week refill period, but they do not establish how a particular cat will respond.
Positive themes
- Some customers report a calming effect and say their cats relax, including when left alone.
Negative themes
- Some customers consider refills expensive and report that they do not always last a full month.
Mixed feedback
- Customers differ on effectiveness and behaviour changes, ranging from reported improvement to no change or increased aggression.
Frequently asked questions
What behaviours is FELIWAY Optimum intended to address?
The listing names urine spraying, scratching, fears, tension and conflict as common stress-related behaviours it aims to help resolve.
How long does one refill last?
The listing claims four weeks of continuous support. Customer feedback is mixed, with some reporting that a refill does not last the full month.
How large an area does it cover?
The manufacturer claims coverage up to 70m². This is a listing claim rather than an independently verified coverage result.

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