Ultrasonic diffuser
Ultrasonic diffuser for sale on Ireland's largest auction and classifieds sites
Led essential oil diffuser - oil, - £10.89
Type ultrasonic humidifier • Aroma diffuser humidity • Room will increased - Free postage - New and Used
Type ultrasonic humidifier • Aroma diffuser humidity • Room will increased - Free postage - New and Used
Essential oil diffuser aroma - oil, - £12.99
When only adding • Water this product • Simple humidifier that - Free postage - New and Used
When only adding • Water this product • Simple humidifier that - Free postage - New and Used
Electric led humidifier - electric, - £13.99
Multi colour changeable • Led light auto • Shut off when - Free postage - New and Used
Multi colour changeable • Led light auto • Shut off when - Free postage - New and Used
Volcano essential oil aroma - volcano, - £19.99
This 360ml large • Capacity essential oil • Diffuser perfect ultrasonic - Free postage - New and Used
This 360ml large • Capacity essential oil • Diffuser perfect ultrasonic - Free postage - New and Used
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Essential oil diffuser - oil, aroma - £14.99
Aroma diffuser clean • Water tank ultrasonic • Plate regularly soft - Free postage - New and Used
Aroma diffuser clean • Water tank ultrasonic • Plate regularly soft - Free postage - New and Used
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48 listings · from £3.79 · avg £13.98
⚠️ These listings were last updated more than 9 days ago.
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Browse 48 ultrasonic diffuser listings currently in our index. Prices range from £3.79 to £49.99, with an average of £13.98. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about ultrasonic diffuser →
Air purifier essential - air, - £12.99
2000ml humidifier feature • After cotton swab • Can spray normally - Free postage - New and Used
2000ml humidifier feature • After cotton swab • Can spray normally - Free postage - New and Used
Aroma essential oil - essential, diffuser - £10.90
Features its ribbed • Exterior classic black • Colorway blend seamlessly - Free postage - New and Used
Features its ribbed • Exterior classic black • Colorway blend seamlessly - Free postage - New and Used
Essential oil aroma - essential, - £10.67
2000ml air humidifier • After cotton swab • Can spray normally - Free postage - New and Used
2000ml air humidifier • After cotton swab • Can spray normally - Free postage - New and Used
Led essential oil diffuser - essential, - £12.99
Aromatherapy benefits compatible • Essential oils improve • Mood relaxation skin - Free postage - New and Used
Aromatherapy benefits compatible • Essential oils improve • Mood relaxation skin - Free postage - New and Used
Yankee candle ultrasonic - yankee, - £7.29
Extra ambiance diffuser • Lights has ten • Available colours can - Free postage - New and Used
Extra ambiance diffuser • Lights has ten • Available colours can - Free postage - New and Used
Yankee candle ultrasonic - yankee, - £7.29
Extra ambiance diffuser • Lights has ten • Available colours can - Free postage - New and Used
Extra ambiance diffuser • Lights has ten • Available colours can - Free postage - New and Used
Led essential oil diffuser - oil, - £12.99
Functions aromatherapy diffuser • Humidifier night light • Air purifier auto - Free postage - New and Used
Functions aromatherapy diffuser • Humidifier night light • Air purifier auto - Free postage - New and Used
Essential oil diffuser aroma - diffuser, - £11.99
Aroma diffuser clean • Water tank ultrasonic • Plate regularly soft - Free postage - New and Used
Aroma diffuser clean • Water tank ultrasonic • Plate regularly soft - Free postage - New and Used
Air purifier ultrasonic cool - ultrasonic, - £11.95
Diffuser humidifier night • Light multifunctional aroma • Can also worked - Free postage - New and Used
Diffuser humidifier night • Light multifunctional aroma • Can also worked - Free postage - New and Used
Ultrasonic mister and oil - ultrasonic, - £37.77
Diffuser works anessential • Cool mist humidifier • Colour changing led - Free postage - New and Used
Diffuser works anessential • Cool mist humidifier • Colour changing led - Free postage - New and Used
Air humidifier aromatherapy - humidifier, - £25.85
25w large capacity • 3.2l air humidifier • Suitable 40m spaces - Free postage - New and Used
25w large capacity • 3.2l air humidifier • Suitable 40m spaces - Free postage - New and Used
Humidifer diffuser essenial - diffuser, - £9.97
Functions aromatherapy diffuser • Humidifier night light • Air purifier auto - Free postage - New and Used
Functions aromatherapy diffuser • Humidifier night light • Air purifier auto - Free postage - New and Used
Led essential oil diffuser - essential, - £8.59
Type ultrasonic humidifier • Aroma diffuser humidity • Room will increased - Free postage - New and Used
Type ultrasonic humidifier • Aroma diffuser humidity • Room will increased - Free postage - New and Used
Essential aroma oil diffuser - aroma, - £9.89
All one design • This essential oil • Diffuser more than - Free postage - New and Used
All one design • This essential oil • Diffuser more than - Free postage - New and Used
Aroma essential oil diffuser - essential, - £7.89
All one design • This essential oil • Diffuser more than - Free postage - New and Used
All one design • This essential oil • Diffuser more than - Free postage - New and Used
Aroma diffuser flame effect - flame, - £9.95
Type ultrasonic aroma • Diffuser humidifier functions • Aromatherapy ambient light - Free postage - New and Used
Type ultrasonic aroma • Diffuser humidifier functions • Aromatherapy ambient light - Free postage - New and Used
Flame led essential - flame, - £8.98
Features color options • Use our fragrance • Diffuser relax soothe - Free postage - New and Used
Features color options • Use our fragrance • Diffuser relax soothe - Free postage - New and Used
Essential aroma oil diffuser - aroma, - £11.89
All one design • This essential oil • Diffuser more than - Free postage - New and Used
All one design • This essential oil • Diffuser more than - Free postage - New and Used
Usb mini ultrasonic humidifier - mini, - £3.89
Mini humidifier aroma • Diffuser function suitable • Essential oils romantic - Free postage - New and Used
Mini humidifier aroma • Diffuser function suitable • Essential oils romantic - Free postage - New and Used
500ml ultrasonic air - 500ml, - £6.99
Aromatherapy device this • Ultrasonic essential oil • Diffuser amazing multifunction - Free postage - New and Used
Aromatherapy device this • Ultrasonic essential oil • Diffuser amazing multifunction - Free postage - New and Used
Led essential oil - led, - £9.89
All one design • This essential oil • Diffuser more than - Free postage - New and Used
All one design • This essential oil • Diffuser more than - Free postage - New and Used
Essential oil diffuser 100ml - diffuser, - £6.99
Smart safe operation • Peace mind ultrasonic • Diffuser features bpa - Free postage - New and Used
Smart safe operation • Peace mind ultrasonic • Diffuser features bpa - Free postage - New and Used
550ml led essential oil - led, - £12.69
Waterless auto off • Function will turn • Automatically after when - Free postage - New and Used
Waterless auto off • Function will turn • Automatically after when - Free postage - New and Used
Aroma diffuser 130ml usb - diffuser, - £11.50
Enhance your living • Space lkh essential • Oil diffuser humidifier - Free postage - New and Used
Enhance your living • Space lkh essential • Oil diffuser humidifier - Free postage - New and Used
Ellia harmony ultrasonic - ellia, - £39.99
Ellia harmony ultrasonic • Cordless diffuser consciously • Crafted made from - Free postage - New and Used
Ellia harmony ultrasonic • Cordless diffuser consciously • Crafted made from - Free postage - New and Used
Homedics ellia harmony - homedics, - £29.99
Choose from three • Tailored stretching sessions • Deep stretch all - Free postage - New and Used
Choose from three • Tailored stretching sessions • Deep stretch all - Free postage - New and Used
Essential oil diffuser - diffuser, 130ml - £12.28
Discover azulon 130ml • Essential oil diffuser • Compact versatile ultrasonic - Free postage - New and Used
Discover azulon 130ml • Essential oil diffuser • Compact versatile ultrasonic - Free postage - New and Used
Led essential oil - essential, diffuser - £10.98
Cycle color fixed • Led can set • Different gentle soothing - Free postage - New and Used
Cycle color fixed • Led can set • Different gentle soothing - Free postage - New and Used
Led essential oil - led, diffuser - £13.99
This listing has • Various specifications please • Choose model you - Free postage - New and Used
This listing has • Various specifications please • Choose model you - Free postage - New and Used
550ml essential oil - essential, aroma - £12.99
Tank maximum capacity • 550ml create calming • Fragrant ambience your - Free postage - New and Used
Tank maximum capacity • 550ml create calming • Fragrant ambience your - Free postage - New and Used
Led essential oil diffuser - led, - £8.39
Easy protect yourself • Your loved ones • Especially 130ml water - Free postage - New and Used
Easy protect yourself • Your loved ones • Especially 130ml water - Free postage - New and Used
Led essential oil diffuser - essential, - £5.85
Mini air humidifier • Aroma diffuser • Spreads calming scents - Free postage - New and Used
Mini air humidifier • Aroma diffuser • Spreads calming scents - Free postage - New and Used
Ultrasonic fragrance diffuser - fragrance, - £21.38
Electronic frequencies cause • Ceramic disc under • Surface water vibrate - Free postage - New and Used
Electronic frequencies cause • Ceramic disc under • Surface water vibrate - Free postage - New and Used
Humidifiers for bedroom - humidifiers, - £25.99
Unique silentspray undisturbed • Sleep humidifier applies • Tech ensure noise - Free postage - New and Used
Unique silentspray undisturbed • Sleep humidifier applies • Tech ensure noise - Free postage - New and Used
Homedics ellia gather - ellia, - £49.99
Key features relaxing • Uplifting sounds quiet • Your mind boost - Free postage - New and Used
Key features relaxing • Uplifting sounds quiet • Your mind boost - Free postage - New and Used
550ml essential oil aroma - 550ml, - £14.99
Refresh indoor air • Diffuses subtle aroma • Purify freshen your - Free postage - New and Used
Refresh indoor air • Diffuses subtle aroma • Purify freshen your - Free postage - New and Used
Aroma diffuser lamp led colour - aroma, - £7.11
Colour changing led • Premium glass aroma • Ultrasonic mist plug - Free postage - New and Used
Colour changing led • Premium glass aroma • Ultrasonic mist plug - Free postage - New and Used
Ultrasonic aroma diffuser - ultrasonic, with - £4.99
Colour changing mood • Transform your space • Thisultrasonic aroma diffuser - Free postage - New and Used
Colour changing mood • Transform your space • Thisultrasonic aroma diffuser - Free postage - New and Used
Led essential oil diffuser - led, - £8.99
Easy protect yourself • Your loved ones • Especially 130ml water - Free postage - New and Used
Easy protect yourself • Your loved ones • Especially 130ml water - Free postage - New and Used
250ml mini usb - usb, humidifier - £3.79
This portable modern • Humidifier features led • Lighting 250ml tank - Free postage - New and Used
This portable modern • Humidifier features led • Lighting 250ml tank - Free postage - New and Used
500ml led essential oil - 500ml, - £12.89
Ultra large capacity • 500ml tank to10 • Hours continuous use - Free postage - New and Used
Ultra large capacity • 500ml tank to10 • Hours continuous use - Free postage - New and Used
Wqjifv 550ml essential - essential, oil - £12.95
550ml water capacity • Silent operation large • Sufficient hours constant - Free postage - New and Used
550ml water capacity • Silent operation large • Sufficient hours constant - Free postage - New and Used
Ultrasonic essential - 4-in-1, - £18.99
Soothing salt lamp • Mood lighting natural • Crystal emits warm - Free postage - New and Used
Soothing salt lamp • Mood lighting natural • Crystal emits warm - Free postage - New and Used
Try this: walker audio | sleepsuits 2 3 years | ergo baby 360 | baby walkers | diapers | snowsuits | little life baby carrier backpack | child gates | yamaha baby grand | basic baby walker
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Everything you need to know about ultrasonic diffuser
Whether you are looking for a brand-new or second-hand ultrasonic diffuser, eBay offers one of the largest selections available online. With 48 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at £3.79, while premium listings can reach £49.99 — giving you a wide budget spread to work with. The average price of £13.98 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.