Best Oil Diffuser For Large Space In May 2025

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This guide comes with the top 10 Best Oil Diffuser For Large Space available on the market. Therefore, if you are looking for the Best Oil Diffuser For Large Space, you have everything you need here.

To help you in your search, we have completed this list of the Best Oil Diffuser For Large Space.

Top Rated Best Oil Diffuser For Large Space Of 2025

Rank	Product Name	Score
1	1500ml Aroma Essential Oil Diffuser Large - Exqline Diffuser for Essential Oils Large Buy Now	9.7 Buy Now
2	Homasy Essential Oil Diffuser, 500ml Aroma Diffuser Humidifier for Large room with Timer Buy Now	9.5 Buy Now
3	ASAKUKI 1500ml Essential Oil Diffuser, Large Capacity Aroma Humidifier for Large Home, Gifts Buy Now	9.1 Buy Now
4	Everlasting Comfort Diffuser for Essential Oils (400ml) - Super High Aroma Output Buy Now	8.8 Buy Now
5	BZseed Aromatherapy Essential Oil Humidifier 550ml 12 Hours High Output for Large Room Buy Now	8.6 Buy Now
6	BlueHills Premium Essential Oil Diffuser with Remote Cute Aromatherapy Humidifier Large Capacity Coverage Buy Now	8.3 Buy Now
7	URPOWER 1000ml Essential Oil Diffuser Humidifiers Remote Control Ultrasonic Aromatherapy Diffusers Room Decor Buy Now	8.1 Buy Now
8	Essential Oil Diffuser, Anjou 500ml BPA Free Cool Mist Humidifier Wood Grain Aromatherapy Buy Now	7.8 Buy Now
9	YHW 1900 mL Large Essential Oil Diffuser Humidifier, 36 Hours Max Aromatherapy Diffuser Buy Now	7.5 Buy Now
10	BlueHills Premium 2000 ML XL Large Essential Oil Diffuser Aromatherapy Humidifier for Large Buy Now	7.2 Buy Now

1. 1500ml Aroma Essential Oil Diffuser Large - Exqline Diffuser for Essential Oils Large

• Effortless usage & switchable lighting mode - this large diffuser for essential oils is easy to use - inject water then add a few drops of your favorite essential oils to the reservoir, and the room will be filled with fabulous aroma. the lights options are separately switchable between bright and dim, providing you a cozy atmosphere in rooms with soft lighting.
• Ultrasonic mist & roomy working range- ultrasonic diffusion doesn't utilize heat, which allows exqline large capacity essential oil diffuser to maintain essential oil integrity and holistic properties well. it is designed to humidify the air in rooms up to 325 sq ft and aromatherapy scent coverage area is 450 sq ft.
• 1 year warranty & lifetime customer service- our large room essential oil diffuser comes with a 1-year warranty as well as lifetime customer service. to save money by purchasing more exqline large oil diffuser, please kindly check the promotions on product page. if you have any question, please feel free to contact us.
• Super large capacity & longer running time- 1500ml (almost 1/2 gallon) water capacity of exqline large essential oil diffuser supports over night operation with a full tank of water (up to 10-20 hours working time). no need to fill water as often as using other smaller capacity essential oil diffusers.
• Adjustable vapor & whisper quiet operation- vapor comes out from side of the lid on the top, actualizing oriented diffusion. knob with 270 rotation to set humidity level. with the help of advanced ultrasonic technology, the large room diffuser produces less than 35 db of noise, perfect for your baby to have a disturbance-free sleep at night.

2. Homasy Essential Oil Diffuser, 500ml Aroma Diffuser Humidifier for Large room with Timer

• Lasting fragrance: the reservoir of homay essential oil diffuser holds 500ml water, ideal for a large room. the aroma oil diffuser infuses fragrance into your air for 12~20 hours in low mist (sleep) mode and 8~11 hours in high mist mode. independent 1/3/6 hours timer settings allow you to set the duration you need.
• Low noise & sleep mode. thanks to the exclusive noise-reducing technology, the noises of bubble and fan are effectively reduced and controlled around 23db within 1 meter, creating a perfect sleeping atmosphere. press the sleep mode button, then the essential oil diffuser will turn to sleep with low mist output(25-40ml/h).
• 500ml diffuser, ideal for large room. homeys 500ml essential oil humidifier atomizer plate oscillates 3, 000, 000 times offering fine cool mists and long-lasting fragrance. the covering area reaches up to 480 ft, which can use in a large room. it continuously works with 8-11h in high mist and 12-20h in a low mist (sleep mode).
• Healthy material & auto off. our oil diffuser made of bpa-free material which is 100% healthy for babies. at the same time, homeys diffuser will automatically shut off when it runs out of water.
• 3-in1 essential oil diffuser. homeys oil diffuser can be used as an aroma diffuser and humidifier. homeys essential oil diffuser will improve the quality of air in your bedroom, kitchen, and baby room. the fragrance will relax your mind when you are sleep or work and protect your family from dry or dust air.

3. ASAKUKI 1500ml Essential Oil Diffuser, Large Capacity Aroma Humidifier for Large Home, Gifts

• Relaxing essential oils are diffused throughout your room to aid relaxation and decrease anxiety. oils can also protect you and your family from dry air, static electricity, and more. great for helping you easily get to sleep for a full night of rest. the humidifier aids healthy breathing, especially during dry times of the year.
• 100% risk free purchase: at asakuki, we have great faith in our essential oil diffusers. after all, we use them in our homes ourselves! each one of them comes with a 1-year technical support. if you have any issue with your diffuser, do not hesitate to contact us - your satisfaction is paramount!
• Automatic water-less shutoff lets you use this during the day and especially at night. never have to worry about damaging the motor when the unit depletes its water supply. this holds almost a half gallon of water so you can fill it and forget it. water level window lets you see how much water is left with a quick glance.
• Easy to operate with 7 color light you can even turn off the light for nighttime sleeping. this diffuser has whisper quiet operation along with super high aroma output. the cool mist spray delivers 200-250 ml per hour. great for moisturizing skin for a more beautiful and younger look.
• Large 1500ml diffuser humidifier covers a full 300 to 450 square feet of space in your home or business. this has the big 1.5 liter water tank that can go all day and night 10 to 20 hours with no refill. the cool mist is fully adjustable to give you a custom experience. enjoy the 360 rotation outlet conveniently placed on the top side.

4. Everlasting Comfort Diffuser for Essential Oils (400ml) - Super High Aroma Output

• Etl certified to meet highest safety standards - the power cord and all electrical components are etl certified by intertek to ensure quality, safety and reliability. other competitors take shortcuts and use cheaper internal components that dont meet etl standards and prematurely fail after just a few months. the everlasting comfort oil diffuser has etl certification s...
• High capacity, beautiful diffuser design - the 400ml large water tank on our aromatherapy diffuser provides you with a relaxing scent for over 13 hours. other oil diffusers are only equipped with a 200ml tank or smaller which cannot even last a full day or night. our flower vase decorative design comes in light wood or dark wood and is small enough to fit anywhere you c...
• 7 color led lights - set the mood and lighting with your choice of 7 colors, set to carousel mode to experience a flowing rainbow of colors, or turn off all lights for total darkness. each color has a high and low setting for added personalization. diffusers for essential oils can help with stress, anxiety, relaxation, sleep, headaches, blocked sinuses, allergies and more.
• A theraputic vessel- our powerful oil diffuser disperses the benefits of therapeutic essential oils. pair our diffuser with specific types of essential oils to experience an impressive range of clinically proven health benefits: improve quality of sleep, reduce anxiety and improve mood, relieve tense muscles and improve skin and hair health, balance hormone levels, boos...
• 4 timer options, variable mist output, auto shut off - select from 1 hour, 3 hours, 6 hours or continuous timer options. tailor the cool mist aromatherapy difuser output to your preference by setting it to high (50ml/hr) or low (30ml/hr). unit is equipped with a safety auto shut off when low water level is detected.

5. BZseed Aromatherapy Essential Oil Humidifier 550ml 12 Hours High Output for Large Room

• Reduce allergies symptoms in winter dry climate: this aromatherapy diffuser could provide a large amount of fresh air for those who suffer from dry cough, itchy nose or eyes, allergies sinus headaches, and sleeping problems, dry skin. helps to improve breathing and sleeping, relieve allergy, reduce static electricity shocks in the dry climate. add to cart now, great hou...
• Timer setting and mist controlwaterless auto-off: you can change the lights to whatever you feel at the moment, constant color or rotation of 7 colors, each light has bright and dim modes. timer set in 1h/3h/6h/continuous on. when time is up or there is no water, the cool mist humidifier will turn off automatically, no risk of burns.
• Advanced ultrasonic diffusing technology, super quiet: ultrasonic diffusers generate the vapor without any heat, which best preserves the integrity of the essential oil. diffusers are better than any scented candle, you can even combine two or more essential oils to create a unique blend. the tiny bit of white noise you barely notice it, which may help you relax and sle...
• 550ml capacity, run over 10 hours, more mist output: our essential oil diffuser feature 550ml capacity, even in strong mist mode still work for 9-10 hours, and weak mist runs for 10-12 hours, works well disseminating the aroma steam to your room. you can use this as an aroma diffuser and personal humidifier, ideal for apartments, office, studio, childs room. this is re...
• Sleek and elegant looking, lifetime customer service: the aromatherapy essential oil diffuser is made of plastic with a faux wood look, bpa-free water tank, fine design, and good quality, it blends naturally with the most home decor. we provide you 12-month replacement or refund if you are not satisfied.

6. BlueHills Premium Essential Oil Diffuser with Remote Cute Aromatherapy Humidifier Large Capacity

• Humidifier made with premium quality materials: besides its uses in aromatherapy, this essential oil diffuser also functions as a humidifier. use it to improve your home's air and atmosphere quality, cover the smell of pets or smoking, and protect you family from excessively dry air, microorganisms, allergens, dust, and more!
• Timer options, remote, variable high or low mist output, auto shut off - select from 1 hour, 3 hours, 6 hours or continuous timer options. tailor the cool mist aromatherapy diffuser output to your choice of high or low. unit is equipped with a safety auto shut off when low water level is detected.
• Huge capacity can run overnight and longer: unlike the standard size humidifiers, this has a extra large capacity and can run all night.
• Multifunctional aromatherapy device with remote: this essential oil diffuser is an amazing aromatherapy device unlike any other you've ever used. it features a large and easy to clean 600 ml water tank, 7 different led light colors, multiple mist modes, as well as a safety auto-switch that prevents it from overheating in case it runs out of water.
• A great gift idea for everyone: if you're in the market for a nice and practical gift, you can stop looking. this great aromatherapy essential oil diffuser is a thoughtful and handy present, one that everyone can benefit from. with a combination of style, size ,design and function like that, it's a guaranteed thoughtful gift!.

7. URPOWER 1000ml Essential Oil Diffuser Humidifiers Remote Control Ultrasonic Aromatherapy Diffusers

• Note: diffuser with white plastic cap. color will only shows when you turn on the led lights. wireless remote control - with this remote, you could be easily turn on/off the light and mist when the oil diffuser is away from your bed,the remote's max reading range is 5m.
• Adjustable mist mode - there are two mist mode, adding water to max line, the oil diffuser run 10-15 hours in high mist mode and 15-20 hours in low mist mode.
• 3 in 1 function - it's not only an aromatherapy diffuser,just add 3-5 drops oi oil per 100ml water.but also a humidifier,it diffuses 100ml water each hour in high mist mode. the night light function can singly operate or combine with the mist.
• Waterless auto shut-off function - giving enough easement for a long time. when you are sleeping or out, it will auto shut-off if the water runs out.the light will not turn off if there is water in the water tank even if the setting time is running out and light will only turn off if there is no water.
• Large 1000ml water capacity - you don't need to add water in a whole day with this large tank, set a 3-hour timer for your morning, a 6-hour timer for your afternoon, and a 9-hour timer for your night sleep.

8. Essential Oil Diffuser, Anjou 500ml BPA Free Cool Mist Humidifier Wood Grain Aromatherapy

• Stylish gift - with its minimalist design and modern optics, the aromatherapy diffuser makes a great and valuable gift for your friends and family.
• Auto shut-off function- automatically shuts off in 5 seconds after running out of water as a safety feature. you have the option to set timer (1hr/4hrs/8hrs), and the diffuser will turn off accordingly
• Patented oil flow system -12 hours of consistent scent & aromatherapy with onefill technology. with one single fill (around 1.5ml / 30-40 drops), the scent will last 11-15 hours in low mode and 6-10 hours in high mode. with other diffusers, oil must be added constantly due to diminishing scent
• Whisper quiet - designed on the base of the principle of hydrokinetics to operate below 30db which will not affect your sleep or your work
• Fine & smooth mist - the ultrasonic technology delivers fine and stable cool mist which increases the air humidity without dampening your furniture or your floor. accordingly to your room size, you can adjust the mist level between low and high modes by pressing the power button

9. YHW 1900 mL Large Essential Oil Diffuser Humidifier, 36 Hours Max Aromatherapy Diffuser

• Trusted 1-year guarantee this premium ultrasonic humidifier and oil diffuser is backed by a 100% risk-free warranty to ensure your total satisfaction. contact us with any questions or concerns for fast, reliable support you can trust.
• Hands-free auto shut off a smarter, safer design our oil diffuser for essential oils will automatically turn off when the water runs out to ensure it doesnt burn up the motor or cause any environmental or safety issues in your home.
• Whisper-quiet night light this vaporizer humidifier features an automatic night light with gradient, dimmable colors that add soothing, relaxing comfort, as well as a super quiet motor that wont distribute study, work, sleeping or meditation.
• 1.9 litter larger tank and run time though small and portable in size for desk, bedroom, office, or even nursery room use, our water tank has a 1900 ml capacity that can provide 12, 24, or 36 hours of continuous mist based on mist intensity settings.
• Dual diffuser and humidifier a 2-in-1 oil diffuser and cool mist humidifier, this system deliver revitalize scents that can help condition your air, moisturize your living space, and reduce dry air so you can rest, relax, and sleep better

10. BlueHills Premium 2000 ML XL Large Essential Oil Diffuser Aromatherapy Humidifier for Large

• Large essential oil diffuser multifunctional aromatherapy device: this essential oil diffuser is an amazing aromatherapy device unlike any other you've ever used. it features a huge and easy to clean 2000 ml to 2200 ml water tank, 7 different led light colors, multiple mist modes, as well as a safety auto-switch that prevents it from overheating in case it runs out of w...
• Large humidifier made with premium quality materials: besides its uses in aromatherapy, this essential oil diffuser also functions as a humidifier. use it to improve your home's air and atmosphere quality, cover the smell of pets or smoking, and protect you family from excessively dry air, microorganisms, allergens, dust, and more!
• Huge capacity can run overnight and longer than a full day : unlike the standard size humidifiers, this has an extra-large capacity and can run all night. this large diffuser measures about 11.5 inches height and 6 inches diameter. it can hold up to 75 ounces / 2200 ml of water and can run up to 40 hours in low mist with one fill.
• A great gift idea for everyone: if you're in the market for a nice and practical gift, you can stop looking. this great aromatherapy essential oil diffuser is a thoughtful and handy present, one that everyone can benefit from. with a combination of style, size ,design and function like that, it's a guaranteed thoughtful gift!
• Dial adjustable low to high mist output, color changing lights, auto shut off enjoy the option to change the mist setting with the knob. the standard diffusers have only two mist settings of high or low. this unique design allows you to set the mist from very low to very high with a dial -knob . due to this unique design this model does not include a remote. unit is e...