---
product_id: 639980765
title: "FELIWAY Aroma Diffuser, Optimum Cat, Enhanced Calming Pheromone, 48 mL | 30 Day | Starter Kit | Translucent | Pack of 2"
brand: "feliway"
price: "€ 101.45"
currency: EUR
in_stock: true
reviews_count: 7
category: "Feliway"
url: https://www.desertcart.pt/products/639980765-feliway-aroma-diffuser-optimum-cat-enhanced-calming-pheromone-48-ml
store_origin: PT
region: Portugal
---

# 30 days continuous diffusion 700 sqft coverage Patented pheromone tech FELIWAY Aroma Diffuser, Optimum Cat, Enhanced Calming Pheromone, 48 mL | 30 Day | Starter Kit | Translucent | Pack of 2

**Brand:** feliway
**Price:** € 101.45
**Availability:** ✅ In Stock

## Summary

> 🐾 Transform your home into a zen den for your cats—because calm cats = happy homes!

## Quick Answers

- **What is this?** FELIWAY Aroma Diffuser, Optimum Cat, Enhanced Calming Pheromone, 48 mL | 30 Day | Starter Kit | Translucent | Pack of 2 by feliway
- **How much does it cost?** € 101.45 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/639980765-feliway-aroma-diffuser-optimum-cat-enhanced-calming-pheromone-48-ml)

## Best For

- feliway enthusiasts

## Why This Product

- Trusted feliway brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Long-Lasting Calm:** Provides a steady, drug-free calming effect for a full 30 days per refill.
- • **Plug & Play Peace:** Easy-to-use heated diffuser designed for optimal pheromone release—just plug in and relax.
- • **Wide-Room Coverage:** Covers up to 700 square feet, perfect for open-plan homes or multi-cat households.
- • **Vet-Trusted Formula:** #1 vet recommended brand with 25+ years of feline stress expertise.
- • **Stress-Free Sanctuary:** Clinically proven to reduce urine spraying by 77%, scratching by 73%, and cat conflicts by 72%.

## Overview

FELIWAY Aroma Diffuser Optimum Cat Starter Kit delivers a patented, drug-free pheromone formula that reduces common feline stress behaviors like spraying, scratching, and conflicts. Each diffuser covers up to 700 square feet and provides continuous calming pheromones for 30 days, making it ideal for multi-cat households and large living spaces. Trusted by millions and recommended by vets, this translucent, plug-in diffuser is your go-to solution for a harmonious cat environment.

## Description

FELIWAY Optimum is a new, patented pheromone discovery, and is the best FELIWAY answer to help reduce the most common signs of stress in cats. It helps with more signs of stress, in more situations, and calms cats better than ever; it helps reduce scratching, urine spraying (peeing), tensions & conflicts among cats, general fears, and reactions to changes. This new discovery, backed by FFELIWAY's 25+ years of feline stress expertise, delivers advanced calming messages, helping your cats feel more comfortable at home than ever before. When surveyed, 93% of cat owners reported enhanced calming for their cats when using FELIWAY Optimum. FELIWAY Optimum's heated diffuser and refill provide calming pheromones continually for up to 30 days in a 700 square foot area. We recommend using an additional diffuser if the room is bigger than 700 square feet. We recommend plugging in the FELIWAY Optimum diffuser in the room where you cat spends the most time, or where conflict among your cats happen most frequently. Try not to plug the diffuser under items (e.g. shelves) or close to objects (e.g. behind curtain or doors) as this affects efficacy. We do not recommend plugging your diffuser in near your litterbox or in a hallway - while your cat may frequent these places, they likely do not spend as much time in these places as you'd think. If your litterbox is in the room where your cat spends the most time, you will want to plug your diffuser into that room. Use FELIWAY Optimum each month to create a constant calming environment. Check the diffuser and refills monthly; you'll want to replace the refill each month, and replace the diffuser head twice a year (every six months) to guarantee the best effect. Make sure to only use a FELIWAY Optimum diffuser with a FELIWAY Optimum Refill. The diffuser is not compatible with refills from other brands, and the FELIWAY Optimum vial should not be used with other diffusers. Never use a diffuser or refill of another brand with a FELIWAY product. Each FELIWAY Diffuser comes with a plug adapted to the local electric systems. Please do not use this diffuser in another country that has a different voltage or with an adapter: it may conduct serious security concerns. Make sure that your diffuser has the fitting plug for your country before plugging in.

Review: Yes it works, Optimum v. Happy Cats, range, etc. - Was recommended this product by a volunteer when adopting a feral kitten. I knew I’d have my work cut out for me and figured every little bit helped. So I got this ahead of time so it would be set when she came home. Fast forward a month. This little gem of a kitten is bopping around the home with my resident cat, pleased they were fast friends. And then out of the blue they began having some hissing squabbles turned physical fights over the course of a few days in the play area. This hadn’t happened since they first met. What the heck?? Then I realized the plug was empty. I put in the refill and by the afternoon and thereafter that behavior hasn’t surfaced again. I share this story because for this house, this product didn’t work miracles when I plugged it in. It still took a lot of patience and slow integration to bring these kitties together and for the kitten to feel confident in her new space. But it IS objectively a product that is noticed in its absence. The behavior was there when this plug was out, non-fighting kitties when in use 🙌 this is worth it. A couple things I wish I knew to begin with when deciding whether to jump on train feliway: 1.) the range of each plug extends up to 700 ft. I ended up ordering a second one and put them on opposite ends of the house. If your cat(s) have an isolated ‘hot button’ room or situation where they regularly have issues (like the master bedroom, at meal time in kitchen ie) you would likely be fine plugging the one in right in that area. If your kitties/cat has an overarching behavior/pattern you’re trying to manage, keep a close eye on that range to see how many you may actually need. 2.) After also trying Feliway’s ‘Happy Cats’ Multicat refill, this Optimum formula performed better here (optimum: 1-2x play fighting-turned-real fighting per month, whereas with the Happy Cats this was still happened 1-2x a week.) 3.) these plugs don’t last forever and will begin not putting product in the air. Instructions say these need to be replaced every 6 months. This is one of the few things I have on auto-ship to remind me to change the unit bc I will undoubtedly forget when I changed it last. 4.) I’ve had no issues with the plugs up to 6 months of use. They are super consistent at running out between 29-31 days.
Review: I Think This Actually Works! - I am extremely optimistic that this is working, and it is such a relief! At the end of September, 2025 my five-year-old cat had a tumor removed with her spleen and a kidney, additionally she spent 2 nights in the critical care unit of a pet hospital. A month later (end of October), after a full recovery from her life saving surgery, we took her to an oncologist where they did an ultrasound and x-ray to check for regrowth of the tumor, no signs of regrowth, they suggested another ultrasound in a month. We took her for another ultrasound at the end of November, no signs of regrowth. About three weeks later (mid-December) we took her to the vet again because she was licking and chewing her fur off on one side of her body. The vet did a thorough exam and gave her a flea treatment (even though she is 100% indoor but may have been bit at one of her vet appointments) and she was prescribed a short round of prednisolone to help with her inflamed and itchy skin in the area she was licking and chewing. Immediately following that last appointment, she started hiding from us and would not let us approach her. She went from being a very confident, happy, social kitty who followed us around and loved to be pet and snuggled to not wanting anything to do with us, like she didn't trust us. My immediate reaction was to take her back to the vet but I suspected her sudden change in behavior may be anxiety brought on by going to the vet so many times in a short period of time and was associating us coming close to her to getting picked up and going to the vet. I was concerned that taking her to the vet again after just going two weeks prior would potentially exacerbate her anxiety. I spoke with my vet and we started giving her gabapentin to help relax her. After a few days, she still was not acting like herself and would move away from us if we got too close, she acted very timid in general, but was not hiding any longer, it was a small improvement, but still concerning because it is not her normal behavior. The vet hospital where she stayed after surgery used pheromone diffusers in the critical care unit for cats, and although I was a little skeptical, I started to read reviews and saw enough positive reviews that made me decide to order one. That was Wednesday night, it arrived first thing Thursday and I immediately plugged it in. I don't know if it is a combination of time, the gabapentin, and the pheromones, but the noticeable difference in her after the first day was undeniable - she was more relaxed and would let us come close to her, sometimes we could even briefly pet her. I ordered just one diffuser and moved it to whatever room she was in. Because I could see an improvement, I ordered two more the next day (Friday) and they were delivered the same day - I immediately put them in each of the rooms she primarily spends most of her time. By Saturday, she started letting us pet her and give her snuggles, she still has moments where she does not want to be pet, but a huge difference. It is now Sunday, she is clearly more relaxed and she is letting us pet her give her lots of snuggles, and she is purring again. She is not 100% herself yet and we still approach her cautiously, but she is visibly much happier, relaxed, and friendlier. Based on her sudden improvement after using the diffusers, I am confident that these have worked, and it feels like a miracle. If you have a stressed or anxious cat, I highly recommend trying it. It may not have an immediate effect like it did for my sweet girl, but I would give it time, it is absolutely worth giving a try.

## Features

- The information below is per-pack only
- REDUCES COMMON SIGNS OF CAT STRESS: FELIWAY Optimum helps reduce common signs of cat stress such as urine spraying, scratching, fears, and tensions & conflicts. Cat owners reported a 77% reduction in urine spraying, 72% reduction in tension and conflicts, a 73% reduction in scratching, and a 70% reduction in fearful reactions to changes*
- ENHANCED SERENITY FOR CATS AND KITTENS: Featuring our patented pheromone discovery¹, FELIWAY Optimum brings the best of feline calming pheromones for improved results². It helps cats with more signs of stress, in more situations, and calms cats better than ever²
- USED BY MILLIONS OF CAT FAMILIES: FELIWAY Cat Calming Pheromone Diffusers are used by millions of families around the world to help ease their cats’ stress related behaviors; they use the science of pheromones to send calming messages to your cat to help them feel more safe and secure
- DRUG FREE & SAFE TO USE: FELIWAY diffusers are drug-free, non-sedating, and while cat pheromone analogs may help your cat, they won't affect humans or other pets
- COVERS LARGE LIVING SPACES: Each diffuser covers an area up to 700 sqft, ensuring widespread calming support throughout your home for cats of all ages. To get started, simply plug your diffuser into an open outlet with 4+ feet of space to diffuse, with the vents pointed upward
- #1 VET RECOMMENDED BRAND: FELIWAY Optimum is the patented¹ formula from the #1 vet recommended brand, and is backed by 25+ years of feline stress expertise and scientific research

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D7VQ7SHM |
| ASIN  | B0D7VQ7SHM |
| Auto Shutoff | No |
| Best Sellers Rank | #432 in Pet Supplies ( See Top 100 in Pet Supplies ) #4 in Cat Relaxants |
| Brand | FELIWAY |
| Brand Name | FELIWAY |
| Capacity | 48 Milliliters |
| Color | Translucent |
| Coverage | 700 square feet |
| Customer Reviews | 4.0 4.0 out of 5 stars (19,471) |
| Date First Available | January 23, 2026 |
| Date First Available  | January 23, 2026 |
| Directions | FELIWAY Optimum heated diffuser and refill provide calming pheromones continually for up to 30 days in a 700 square foot area. We recommend using an additional diffuser if the room is bigger than 700 square feet. We recommend plugging in the FELIWAY Optimum diffuser in the room where you cat spends the most time. Try not to plug the diffuser under items (e.g. shelves) or close to objects (e.g. beh… |
| Floor Area | 700 Square Feet |
| Is Discontinued By Manufacturer  | No |
| Item Package Dimensions L x W x H | 14.96 x 12.52 x 9.37 inches |
| Item Weight | 9.6 ounces |
| Item model number | D92110K |
| Item model number  | D92110K |
| Manufacturer | Feliway |
| Manufacturer  | Feliway |
| Model Name | D92110K |
| Number of Items | 2 |
| Package Dimensions  | 14.96 x 12.52 x 9.37 inches; 9.6 ounces |
| Power Source | Corded Electric |
| Recommended Uses For Product | Home |
| Scent | Unscented |
| Set Name | 30 Day Starter Kit |
| Size | 2 Pack |
| Target Audience Keyword | house-cats |
| Unit Count | 3.24 Fluid Ounces |

## Product Details

- **Brand:** FELIWAY
- **Color:** Translucent
- **Power Source:** Corded Electric
- **Recommended Uses For Product:** Home
- **Scent:** Unscented

## Images

![FELIWAY Aroma Diffuser, Optimum Cat, Enhanced Calming Pheromone, 48 mL | 30 Day | Starter Kit | Translucent | Pack of 2 - Image 1](https://m.media-amazon.com/images/I/81lVYUarXbL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Yes it works, Optimum v. Happy Cats, range, etc.
*by A***E on August 30, 2025*

Was recommended this product by a volunteer when adopting a feral kitten. I knew I’d have my work cut out for me and figured every little bit helped. So I got this ahead of time so it would be set when she came home. Fast forward a month. This little gem of a kitten is bopping around the home with my resident cat, pleased they were fast friends. And then out of the blue they began having some hissing squabbles turned physical fights over the course of a few days in the play area. This hadn’t happened since they first met. What the heck?? Then I realized the plug was empty. I put in the refill and by the afternoon and thereafter that behavior hasn’t surfaced again. I share this story because for this house, this product didn’t work miracles when I plugged it in. It still took a lot of patience and slow integration to bring these kitties together and for the kitten to feel confident in her new space. But it IS objectively a product that is noticed in its absence. The behavior was there when this plug was out, non-fighting kitties when in use 🙌 this is worth it. A couple things I wish I knew to begin with when deciding whether to jump on train feliway: 1.) the range of each plug extends up to 700 ft. I ended up ordering a second one and put them on opposite ends of the house. If your cat(s) have an isolated ‘hot button’ room or situation where they regularly have issues (like the master bedroom, at meal time in kitchen ie) you would likely be fine plugging the one in right in that area. If your kitties/cat has an overarching behavior/pattern you’re trying to manage, keep a close eye on that range to see how many you may actually need. 2.) After also trying Feliway’s ‘Happy Cats’ Multicat refill, this Optimum formula performed better here (optimum: 1-2x play fighting-turned-real fighting per month, whereas with the Happy Cats this was still happened 1-2x a week.) 3.) these plugs don’t last forever and will begin not putting product in the air. Instructions say these need to be replaced every 6 months. This is one of the few things I have on auto-ship to remind me to change the unit bc I will undoubtedly forget when I changed it last. 4.) I’ve had no issues with the plugs up to 6 months of use. They are super consistent at running out between 29-31 days.

### ⭐⭐⭐⭐⭐ I Think This Actually Works!
*by N***M on January 11, 2026*

I am extremely optimistic that this is working, and it is such a relief! At the end of September, 2025 my five-year-old cat had a tumor removed with her spleen and a kidney, additionally she spent 2 nights in the critical care unit of a pet hospital. A month later (end of October), after a full recovery from her life saving surgery, we took her to an oncologist where they did an ultrasound and x-ray to check for regrowth of the tumor, no signs of regrowth, they suggested another ultrasound in a month. We took her for another ultrasound at the end of November, no signs of regrowth. About three weeks later (mid-December) we took her to the vet again because she was licking and chewing her fur off on one side of her body. The vet did a thorough exam and gave her a flea treatment (even though she is 100% indoor but may have been bit at one of her vet appointments) and she was prescribed a short round of prednisolone to help with her inflamed and itchy skin in the area she was licking and chewing. Immediately following that last appointment, she started hiding from us and would not let us approach her. She went from being a very confident, happy, social kitty who followed us around and loved to be pet and snuggled to not wanting anything to do with us, like she didn't trust us. My immediate reaction was to take her back to the vet but I suspected her sudden change in behavior may be anxiety brought on by going to the vet so many times in a short period of time and was associating us coming close to her to getting picked up and going to the vet. I was concerned that taking her to the vet again after just going two weeks prior would potentially exacerbate her anxiety. I spoke with my vet and we started giving her gabapentin to help relax her. After a few days, she still was not acting like herself and would move away from us if we got too close, she acted very timid in general, but was not hiding any longer, it was a small improvement, but still concerning because it is not her normal behavior. The vet hospital where she stayed after surgery used pheromone diffusers in the critical care unit for cats, and although I was a little skeptical, I started to read reviews and saw enough positive reviews that made me decide to order one. That was Wednesday night, it arrived first thing Thursday and I immediately plugged it in. I don't know if it is a combination of time, the gabapentin, and the pheromones, but the noticeable difference in her after the first day was undeniable - she was more relaxed and would let us come close to her, sometimes we could even briefly pet her. I ordered just one diffuser and moved it to whatever room she was in. Because I could see an improvement, I ordered two more the next day (Friday) and they were delivered the same day - I immediately put them in each of the rooms she primarily spends most of her time. By Saturday, she started letting us pet her and give her snuggles, she still has moments where she does not want to be pet, but a huge difference. It is now Sunday, she is clearly more relaxed and she is letting us pet her give her lots of snuggles, and she is purring again. She is not 100% herself yet and we still approach her cautiously, but she is visibly much happier, relaxed, and friendlier. Based on her sudden improvement after using the diffusers, I am confident that these have worked, and it feels like a miracle. If you have a stressed or anxious cat, I highly recommend trying it. It may not have an immediate effect like it did for my sweet girl, but I would give it time, it is absolutely worth giving a try.

### ⭐⭐⭐⭐⭐ Review
*by S***N on June 28, 2025*

Sehr wirksames Produkt. Ich freue mich jeden Tag wieder, dass meine beiden Kater tiefentspannt und stressfrei sind. Danke dafür!!! 😊👍

## Frequently Bought Together

- FELIWAY Optimum Cat, Enhanced Calming Pheromone Diffuser, 30 Day Starter Kit (48 mL), Translucent (Pack of 2)
- FELIWAY Classic Cat Calming Pheromone Travel Spray (20 mL)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-04-23*