--- product_id: 47922302 title: "HARMIES 300ml Essential Oil Diffusers, Aromatherapy Diffuser and Humidifier for your Home, Office, Spa, with Ultrasonic Adjustable Cool Mist, Waterless Auto Shut-Off, 7 Colour LED - LIGHT WOOD" brand: "harmies" price: "FREE" currency: GBP in_stock: false url: https://www.desertcart.co.uk/products/47922302-harmies-300ml-essential-oil-diffusers-aromatherapy-diffuser-and-humidifier-your store_origin: GB region: United Kingdom --- # 8-hour runtime 7-color adjustable LED 300ml water capacity HARMIES 300ml Essential Oil Diffusers, Aromatherapy Diffuser and Humidifier for your Home, Office, Spa, with Ultrasonic Adjustable Cool Mist, Waterless Auto Shut-Off, 7 Colour LED - LIGHT WOOD **Brand:** harmies **Price:** FREE **Availability:** ❌ Out of Stock ## Summary > 🌿 Elevate your space, elevate your mind—diffuse the stress away with style! ## Quick Answers - **What is this?** HARMIES 300ml Essential Oil Diffusers, Aromatherapy Diffuser and Humidifier for your Home, Office, Spa, with Ultrasonic Adjustable Cool Mist, Waterless Auto Shut-Off, 7 Colour LED - LIGHT WOOD by harmies - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/47922302-harmies-300ml-essential-oil-diffusers-aromatherapy-diffuser-and-humidifier-your) ## 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 - • **Smart Safety First:** Waterless auto shut-off ensures worry-free use, protecting your home and work environment 24/7. - • **Customizable Ambiance:** Cycle through 7 vibrant LED colors or set your perfect mood with bright and dim modes—your space, your vibe. - • **Whisper-Quiet Wellness:** Ultrasonic technology delivers a soothing cool mist with near-silent operation—focus or relax without distractions. - • **Effortless All-Day Aroma:** Up to 8 hours of continuous mist with a generous 300ml tank—stay refreshed from morning meetings to evening unwind. - • **Multi-Functional Harmony:** More than a diffuser—humidify, purify, and deodorize your space for a healthier, stress-free atmosphere. ## Overview The HARMIES 300ml Essential Oil Diffuser combines ultrasonic cool mist technology with a large water capacity and 7-color LED lighting to create a customizable aromatherapy experience. Featuring 4 timer settings and an automatic waterless shut-off, it ensures safe, quiet operation for up to 8 hours. Designed with BPA-free materials and certified adapters, it purifies and humidifies your environment while adding a soothing ambiance to any home, office, or spa setting. ## Description Product description Frequently asked questions How long does the diffuser work for before running out of water? Our essential oil diffuser lasts up to 8 hours with 300ml of water, before needing to refill. 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 3-6 drops into the water. Harmies Essential Oil Diffuser - 300ml 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) Strong and light mist for better control Simple setup and operation: MIST button: for controlling the mist level, timer and ‘on/off’ LIGHT button: control the light colours and brightness Package list: 1 x Ultrasonic Humidifier 1 x 3-pin Adapter 1 x Measuring cup User Manual (English) Product specifications: Product weight: 0.46kg Item size: 17*17*17cm Package size: 17 *17*19.5 cm Package weight: ~0.57kg Power supply: AC/DC adapter (3-pin) Power consumption: 12W Water sink capacity: 300ML Timing: 1/3/6 hours OR steady on Max time: 8 hours with 300ml water LED: 7 colours - bright and dim Water: Tap or purified water Material: PP, PC & AS Mist volume: ~20 - 30ml/H Directions Included in product description ## Features - AROMATHERAPY DIFFUSER WITH TIMER – 4 timer settings (1hr, 3hrs, 6hrs or steady on) and automatic shut off when there's no water. - LONG-LASTING AND CUSTOMISABLE – The huge 300ml diffuser capacity will last for 8 hours before needing a refill. Also with changeable cool diffuser mist modes (strong and light mist). - A DIFFUSER WITH LIGHT (ADJUSTABLE) – Cycle between 7 LED colours, stick to just one or turn them off completely. Can be used as night light only. Includes bright and dim modes. - FOR PERFECT AROMA AND HARMONY – Therapeutic benefits; relaxes and relieves stress. Can be used as an Aroma Diffuser/Humidifier/Air Purifier that adds moisture to the air and buries unwanted smells. Does not include essential oil. - STAY SAFE AND HEALTHY – Purifies the air you breathe, 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) for home or business use. ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | HARMIES | | Colour | Light Wood Grain | | Package Dimensions | 19.6 x 17.8 x 17.4 cm; 760 g | | Capacity | 300 Millilitres | | Power / Wattage | 12 watts | | Material | Plastic | | Auto Shutoff | Yes | | Runtime | 8 hours | | Special Features | Automatic Shut-Off, Cool Mist | | Item Weight | 760 g | ## Product Details - **Brand:** HARMIES - **Colour:** Light Wood Grain - **Scent:** Citrus - **Recommended uses for product:** Home, Office - **Material:** Plastic ## Images ![HARMIES 300ml Essential Oil Diffusers, Aromatherapy Diffuser and Humidifier for your Home, Office, Spa, with Ultrasonic Adjustable Cool Mist, Waterless Auto Shut-Off, 7 Colour LED - LIGHT WOOD - Image 1](https://m.media-amazon.com/images/I/71XGZXC1MYL.jpg) ![HARMIES 300ml Essential Oil Diffusers, Aromatherapy Diffuser and Humidifier for your Home, Office, Spa, with Ultrasonic Adjustable Cool Mist, Waterless Auto Shut-Off, 7 Colour LED - LIGHT WOOD - Image 2](https://m.media-amazon.com/images/I/714FK4AKCCL.jpg) ![HARMIES 300ml Essential Oil Diffusers, Aromatherapy Diffuser and Humidifier for your Home, Office, Spa, with Ultrasonic Adjustable Cool Mist, Waterless Auto Shut-Off, 7 Colour LED - LIGHT WOOD - Image 3](https://m.media-amazon.com/images/I/71XDpqmgTJL.jpg) ![HARMIES 300ml Essential Oil Diffusers, Aromatherapy Diffuser and Humidifier for your Home, Office, Spa, with Ultrasonic Adjustable Cool Mist, Waterless Auto Shut-Off, 7 Colour LED - LIGHT WOOD - Image 4](https://m.media-amazon.com/images/I/615TI3YSTqL.jpg) ![HARMIES 300ml Essential Oil Diffusers, Aromatherapy Diffuser and Humidifier for your Home, Office, Spa, with Ultrasonic Adjustable Cool Mist, Waterless Auto Shut-Off, 7 Colour LED - LIGHT WOOD - Image 5](https://m.media-amazon.com/images/I/71XJAskD0xL.jpg) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/47922302-harmies-300ml-essential-oil-diffusers-aromatherapy-diffuser-and-humidifier-your](https://www.desertcart.co.uk/products/47922302-harmies-300ml-essential-oil-diffusers-aromatherapy-diffuser-and-humidifier-your) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-21*