---
product_id: 88478059
title: "Harmies® 40ml USB Essential Oil Diffuser, Portable Aroma Diffuser with Cool Mist, Diffusing Modes and Waterless Auto Shut-Off, Ideal for Travel, Office, Car, Home - Silver"
brand: "harmies"
price: "31 kr"
currency: DKK
in_stock: false
reviews_count: 8
url: https://www.desertcart.dk/products/88478059-harmies-40ml-usb-essential-oil-diffuser-portable-aroma-diffuser-cool
store_origin: DK
region: Denmark
---

# 2x power modes Waterless auto shut-off Cool mist technology Harmies® 40ml USB Essential Oil Diffuser, Portable Aroma Diffuser with Cool Mist, Diffusing Modes and Waterless Auto Shut-Off, Ideal for Travel, Office, Car, Home - Silver

**Brand:** harmies
**Price:** 31 kr
**Availability:** ❌ Out of Stock

## Summary

> Breathe Easy, Live Well! 🌿

## Quick Answers

- **What is this?** Harmies® 40ml USB Essential Oil Diffuser, Portable Aroma Diffuser with Cool Mist, Diffusing Modes and Waterless Auto Shut-Off, Ideal for Travel, Office, Car, Home - Silver by harmies
- **How much does it cost?** 31 kr with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/88478059-harmies-40ml-usb-essential-oil-diffuser-portable-aroma-diffuser-cool)

## Best For

- harmies enthusiasts

## Why This Product

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

## Key Features

- • **Safety First:** Waterless auto shut-off for peace of mind.
- • **Health & Harmony:** Reduces bacteria and enhances air quality.
- • **Portable Powerhouse:** USB-powered for on-the-go relaxation.
- • **Customizable Comfort:** Choose between intermittent or continuous diffusion.
- • **Quality You Can Trust:** Crafted from anti-corrosion materials for durability.

## Overview

The Harmies® 40ml USB Essential Oil Diffuser is a versatile and portable aroma diffuser designed for travel, office, car, or home use. With multiple power settings, a waterless auto shut-off feature, and high-quality materials, it ensures safety and longevity while providing therapeutic benefits to enhance your well-being.

## Description

Frequently asked questions  How long does the diffuser work for before running out of water? Our essential oil diffuser lasts up to ~2-3 hours with maximum 40ml of water, before needing to refill. We recommend putting around 35ml. Can the diffuser be used without the light? Yes, you can turn the light off and still use the diffuser.  Does the scented oil diffuser come with essential oils? We do not currently include essential oils.  How quiet is the diffuser? It’s very quiet; all you hear is a whisper from the mist.  Can you use any oils? Including citrus oils? We recommend essential oils to ensure no damage to the tank. Just, add 2-4 drops into the water.   Harmies Essential Oil Diffuser - 40ml Travel  Improves overall wellbeing: Relieves stress, aids sleep & relaxation Eases allergies through reducing bacteria Moisten dry skin during colder temperatures  Natural scented oil diffuser: Ultrasonic diffuser: creates a cool mist (safe for all ages) Adjustable mist modes for better control  Simple setup and operation: ON button: for controlling the mist mode and ‘on/off’ LIGHT button: control the light on/off  Package list: 1 x Ultrasonic Humidifier 1 x USB cable 1 x Measuring cup User Manual (English)  Product specifications: Product weight: 0.33kg Item size: 6*6*14cm Package size: 10 *10*23 cm Package weight: ~0.5kg Power supply: USB cable Power consumption: 5W Water sink capacity: maximum 40ML Mist Modes: intermittent OR steady on Max time: ~2-3 hours with 40ml water LED: warm white Water: Tap or purified water Material: PP, PC & Alloy Mist volume: ~20-30ml/h

## Features

- PORTABLE DESIGN WITH MULTIPLE POWER SETTINGS – A smart diffuser with 2x power modes - intermittent or continuous. USB-powered so you can take it anywhere.
- QUALITY MATERIALS FOR LONG-LASTING CARE – Highest quality materials with anti-corrosion to ensure longer-lasting care. Please be aware, colour of metal may vary from images.
- WATERLESS AUTO SHUT – Turns off when water runs out for safety. Includes a dim ambient light, noticeable in a low light setting.
- FOR PERFECT AROMA AND HARMONY – Therapeutic benefits; relaxes and relieves stress. An aroma diffuser and humidifier to add moisture to the air and bury unwanted smells. Does not include essential oil.
- STAY SAFE AND HEALTHY – Reduces bacteria in the room. Helps with congestion and alleviates both body and mind fatigue. 100% safe: BPA-free PP plastic, the power adapter is certified (CE and ROHS).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Units | 40.0 millilitre |
| Brand | HARMIES |
| Format | Oil |

## Product Details

- **Brand:** HARMIES
- **Colour:** Silver
- **Scent:** Citrus
- **Material:** Metal
- **Special feature:** Cool Mist, Automatic Shut Off

## Images

![Harmies® 40ml USB Essential Oil Diffuser, Portable Aroma Diffuser with Cool Mist, Diffusing Modes and Waterless Auto Shut-Off, Ideal for Travel, Office, Car, Home - Silver - Image 1](https://m.media-amazon.com/images/I/71kGO3Azq2L.jpg)
![Harmies® 40ml USB Essential Oil Diffuser, Portable Aroma Diffuser with Cool Mist, Diffusing Modes and Waterless Auto Shut-Off, Ideal for Travel, Office, Car, Home - Silver - Image 2](https://m.media-amazon.com/images/I/81J6cUUY3cL.jpg)
![Harmies® 40ml USB Essential Oil Diffuser, Portable Aroma Diffuser with Cool Mist, Diffusing Modes and Waterless Auto Shut-Off, Ideal for Travel, Office, Car, Home - Silver - Image 3](https://m.media-amazon.com/images/I/61DNur7FX1L.jpg)
![Harmies® 40ml USB Essential Oil Diffuser, Portable Aroma Diffuser with Cool Mist, Diffusing Modes and Waterless Auto Shut-Off, Ideal for Travel, Office, Car, Home - Silver - Image 4](https://m.media-amazon.com/images/I/71gqZ8KUhHL.jpg)
![Harmies® 40ml USB Essential Oil Diffuser, Portable Aroma Diffuser with Cool Mist, Diffusing Modes and Waterless Auto Shut-Off, Ideal for Travel, Office, Car, Home - Silver - Image 5](https://m.media-amazon.com/images/I/61C7Q1WANPL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great small diffuser
*by B***Y on 9 October 2019*

This gave me a really good night's sleep ....and it's smaller than most too....

### ⭐ Faulty - NO MIST
*by S***  on 19 March 2019*

I'm very disappointed... for the price I paid as well as this product does not create any mist. perhaps this specific model was faulty, but I will return and buy one form another company.Great colors and size if it did work.

### ⭐⭐⭐ Not as advertised, but pretty OK nonetheless
*by M***V on 24 November 2018*

First off, the description is misleading:1. It is not 50ml. It's more like 20-25ml. The space where the water goes has a WARNING label and a line around it that says you can't fill past this line (which according to the measuring cup included, is somewhere between 20-25ml).2. The colour in the photo is inaccurate. It looks like a silver metal, but in fact it's more of a darker "space grey" (see my photo).3. It technically has a light feature, but since most of the product is opaque aside from a silicone ring at the top which is very far from the LED source, the actual button to turn on the light is brighter than the light feature (see my photo). So it's a pointless feature as you almost can't even see the light. Actually the LED buttons are unnecessarily bright in my opinion.Now the good bits:A. Despite its size, it produces a good amount of mist and that 20ish ml actually lasts for several hours. It's perfect for sitting on my desk and fills my small home office with a light pleasant scent.B. It's relatively quiet. It's not silent but the noise is only about as loud as a deep breath out.C. The parts inside the water container appear to be well sealed so no mould has been growing, unlike the other diffuser I have, which has mould growing in between two layers of plastic around the sensor (impossible to clean even with a stiff brush).D. Build: It looks nice and has a subtle appearance that doesn't draw attention. The metal outer shell has a good weight to it, and the edges look well-machined with a subtle bevel that gives it a quality feel.Based on these positives, despite the inaccurate/misleading description, it would have gotten 4 stars if it didn't make a loud BEEP every time you press a button.

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-03-13*