Best Square Diffuser in 2026

Best Gift 5-IN-1 AROMATHERAPY DEVICE: This ultrasonic essential oil diffuser is an amazing multifunction aromatherapy device unlike any other you've ever used. It features a large and easy to clean 700ml water tank, 7 different LED light colors, multiple mist diffuse modes, as well as a safety auto-switch that prevents it from overheating in case it runs out of water.

GREATLY IMPROVES LIVING SPACE: Besides its uses in aromatherapy, this essential oil diffuser also functions as a humidifier. Use it to improve your home's atmosphere quality, cover the smell of pets or smoking, and protect you family from excessively dry season, static electricity, and more!

PREMIUM QUALITY MATERIALS: When it comes to our premium essential oil diffusers, we make a point of using nothing but the same ultra-high grade, safe, and eco-friendly PP materials baby bottles are made from, as well as state-of-the-art production processes and strict quality control.

Low Noise & Sleep Better: Adopted noise reduction technology, ultrasonic diffuser operates quietly with no water dripping sounds, creates a restful and soothing environment for undisturbed relaxation, learning, working and sleeping

500ML Diffuser, Ideal for Large Room：The covering area reaches up to 480 ft², which can use in a large room.Enjoy up to 20 hours Fragrance. The three-time setting for option: 1/3/6H timer.

Superior Safety：You can keep this aromatherapy diffuser on at night, no need to worry about overheating because of the waterless auto-off protecting function, which assures safety for you and your family.

5-IN-1 AROMATHERAPY DEVICE: This ultrasonic essential oil diffuser is an amazing multifunction aromatherapy device unlike any other you've ever used. It features a large and easy to clean 300ml water tank, 7 different LED light colors, multiple mist timer modes, as well as a safety auto-switch that prevents it from overheating in case it runs out of water.

RELAXING ATMOSPHERE: This essential oil diffuser is perfect for every home, office or yoga studio so you can create a calming atmosphere. This device will humidify the air so you will no longer suffer from dry. The diffuser will create the perfect environment so you can breathe,relax,and feel better than ever!

PREMIUM QUALITY MATERIALS: When it comes to our premium essential oil diffusers, we make a point of using nothing but the same ultra-high grade, safe, and eco-friendly PP materials baby bottles are made from, as well as state-of-the-art production processes and strict quality control.

HANDMADE GLASS DIFFUSER - Our Porseme 500ml aroma diffusers are 6.5'' in diameter and 7'' in height. They are handblown glass,so that each glass globe is unique. The 500ml glass diffuser is designed for large capacity which will run for 15-21 hours and it is suitable for 500-1000 square feet. You can place in any area and relax.

UNIQUE ART DECORATIVE DESIGN - Our 500ml glass essential oil diffuser has an elegant starry pattern glass cover and wood grain decorative base.It is very suitable for your bedroom, living room, children's room, study room, office and yoga room.

AMAZING AND CHARMING LIGHT - The LED lights can be set to 7 different soothing and mesmerizing colors. Press the “LIGHT” button to adjust the light color you prefer (fix/change color). In addition, you can use the mist and light modes individually or together.

Large Capacity: With 700ml large capacity, the oil diffuser can run more than 20 hours in low mist mode, more than 10 hours in high mist mode. Perfectly use in large room, bedroom, office etc.

Fantastic Design: This aromatherapy diffuser has a unique square design, and also with modern feeling. The dark wood grain base diffuser fits your home and office perfectly.

7 Changing LED Lights: It is not only an air diffuser for essential oils but also a night light with 7 changing colors to choos. You can choose gradually changing mode or one color mode with bright or dim adjustment.

Premium Material: Diffuser necklaces and 24 inch chain made of hypoallergenic 316L stainless steel. Never fade, water resistant, nickel and lead free, harmless to skin and provide you with a comfortable wearing experience. Aromatherapy essential oil diffuser necklace helps you relieving stress and anxiety, healing tired mind, and improving poor sleep.

Aromatherapy Necklace Gift Set: Aromatherapy can soothe the emotions and uplift the spirit, soothing the body and mind. Practical and thoughtful essential oil diffuser necklaces for women or men are suitable on birthdays, Valentine's Day, anniversaries, Christmas, Mother's Day, Father's Day, ideal gift for essential oil lovers.

2 PCS Diffuser Necklace with Felt Pads : Not only will you receive 2 diffuser necklaces for essential oils, we'll also give you 20 replacement felt pads that inside the locket stores and diffuses fragrance! Drop in your favorite essential oil, beautiful smell will accompany you anytime, anywhere. Different color pads also can distinguish different scents and match different styles of clothing!

Difusor to Improve Air Quality: The cool mist aroma diffuser adopted the ultrasonic technology to create a soft environment by adding essential oils.Use it to improve your home's atmosphere quality, cover the smell of pets or smoking, and protect your family from excessively dry season, dust, and more! It suits salon,bedroom,large room, living room, nursery, office, and so on.

Relaxation Atmosphere: This electric diffuser is perfect for every home, office or yoga studio so you can create a calming atmosphere. This device will purify and humidify the air so that you no longer suffer from dry skin and lips.The diffuser will create the perfect environment for you to breathe and sleep better, relax and feel better than ever!

Remote control – Our diffuser for essential oils comes with an easy to use remote control ,change the lighting and misting modes as well as set the humidifier’s timer.run smoothly and without noise, giving you a quiet and comfortable environment

Aromatherapy + Salt Therapy – Our 2-in-1 wellness device delivers two natural healing therapies in one simple device. Firstly, a heat-less ultrasonic diffuser atomizes essential oils delivering powerful therapeutic effects. Secondly, a separate chamber includes raw Himalayan salt crystals mined from the mountains of Pakistan to provide natural air ionization and purification making it easier and healthier to breathe. This neat, compact device adds a sense of peaceful ambience to any space.

100% Real Pink Himalayan Salt Crystals – Over 2 pounds of raw, unrefined, unprocessed and hand carved Himalayan pink salt crystals containing over 70+ trace minerals. A natural source of air purification and ionization that provides for easier and healthier breathing.

10 Essential Plant Oils Included - Our Top 10 essential oils include lavender, eucalyptus, tea tree, orange, peppermint, lemongrass, jasmine, nutmeg, clove, and spearmint oils. We don’t use any additives or cheap filler oils and use a variety of extraction processes including steam distillation and cold press. All oils are therapeutic grade come in amber 10ml jars to protect from sun degradation.

(SET OF 3) WATER-LESS, WIRE-LESS & CONVENIENT AROMATHERAPY: Our cool mist diffuser provides 100% pure essential oil aromatherapy without using a single drop of water. Simply fit in a 10 ml, 15 ml or 30 ml essential oil bottle & relax in the calming aroma.

DIRECTIONS FOR USE: This diffuser is intended for use with ONLY Guru Nanda essential oils, as we cannot guarantee other brand’s oils will not clog or break the diffuser. Dense oils such as; peppermint, clove and vetiver, do not work well with waterless technology. If you use any of these oils, simply clean the mist outlet with rubbing alcohol

FITS ALL ELECTRIC OUTLETS: Enjoy your natural mist from 100 square feet away with our easy to use plug-in diffuser. The BPA-free electric diffuser rotates to fit any outlet in your home. It also notifies you when it is time to change the bottle.

RELAXING AROMATHERAPY: Diffuses 100% pure essential oils with powerful aroma coverage that naturally deodorizes the air of strong tobacco, pet odors, and more for up to 10 hours in rooms as large as 250 square feet

WHISPER-QUIET OPERATION: Runs quietly in the background making it perfect for use in a nursery, office, spa, yoga studio, or in any room of your home

SOOTHING MOOD LIGHT: Enhances the ambiance in the room with soft night glow lighting

300ml Capacity with Powerful Mist: This 300ml diffuser is upgraded with powerful mist output. It is strong enough even in weak mode to provide rapid humidifaction.

4 Timer Settings & Color Changing LED Lights: timer is optional from ON/1H/2H/3H. All functions stop working when time is up. Light can be set in color changing/one color fixed/bright/dim/off modes. Each color is a feast to the eyes against the transparent outer shell.

Whisper-Quiet & Waterless Shut-off: Designed with noise eliminating cover and safe auto off system, this diffuser will run without disturbing noises and shut off automatically when water runs out.

【Tree of Life Diffuser Necklace】 A Unique locket style essential oil diffuser necklace so you can now wear your favorite essential oils anywhere.Diffuse at work, in the car, or even on an airplane.

【Stainless Steel Perfume Necklace】316L Stainless Steel Locket diameter:30mm(1.18");Thickness:6.5mm;Chain Length:60cm(24")

【10 Multicolored Refill Pads 】Each Aromatherapy Necklace includes 10 multicolored reusable, washable and highly absorbent synthetic felt refill pads. Giving your pendant different lookings everyday.

This camera flash diffuser compatible with Canon Nikon YONGNUO Godox V860II/V850II/TT685/TT600/TT350/AD200/AD200PRO square flash speedlite.

It includes high quality honeycomb grid reflector, diffuser ball and 4 pieces color gel filters.

Pecial magnetic design helps you change parts quickly.

Sturdy, extremely clear, solid, heavy bottom, clean, glass bottle with caps, safety packing in 4 pcs.

Classic shape - square size diffuser bottle, classic design, always popular using at home.

Use for DIY Replacement Reed Diffuser Sets to creat any your favorite fragrance reed diffuser.

【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.

【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.

【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.

The Aroma Globe's motorized rotating stem stirs water to help trap stale, stuffy air

The Aroma Globe's motorized rotating stem stirs water to help trap stale, stuffy air

The soothing ambiance of moving water and colored LED lights help create a peaceful oasis

【Four in One Function】 The essential oil diffuser can be used as an aroma air diffuser, humidifier, night light and an artwork. With the diffuser for essential oils, it will relieve some stress from the daily life, it will moisten the air for better living, it will bring a soft light in the dark evening, and it will be a perfect choice to decor any room.

【Safe Performance】 The oil diffuser is made from glass, premium plastic and eco-friendly BPA Free materials, which is safe for all ages, especially for your young baby. With the waterless Auto Shut OFF function, the diffuser will shut off automatically when there is no water to protect you and itself. The diffusers passed all the safety tests.

【Ultra Quiet & 7 Colors】 The aromatherapy diffuser adopts advanced ultrasonic technology so that the sound is less than 35dB. It is extremely quiet without annoying noise that won't disturb you when sleeping or working. With the 7 colors (each color has dim and bright mode), the aroma diffuser creates a relaxing atmosphere around whether in 7-color Auto cycle mode or in fixed color mode.

WHISPER QUIET DIFFUSER: Our essential oil diffuser can be used as an aromatherapy essential oil diffuser, cool mist humidifier and night light. With unique noise reduction technology, noise of the diffuser can be controlled below 24dB, so you can have a better quality of sleep, work and study. Cooperate with flame night light and oils to create a perfect sleeping atmosphere.

4 TIME SETTING MODES& VARIABLE MIST OUTPUTS: Each button has multiple functions, please do not think this is a defect of the product. Choose between ON/30S/2H/4H. When time is up or there is no water, the cool mist humidifier will turn off automatically, no risk of burns. Also select High (12 hours), Low (15 hours) and Intermittent (18 hours) diffusing options to complete your customizable aromatherapy essential oils experience.

PREMIUM QUALITY MATERIALS: The essential oil diffusers adopts the same safe and eco-friendly PP materials baby bottles are made from, as well as strict quality control. A large 200ml water tank allows for up to 18 hours of continuous mist. The combination of flame noctilucent and fog produces a realistic effect, just like the flames burning in the fireplace, bringing a romantic and warm atmosphere at night.

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 4000 ML water tank, 7 different LED light colors, adjustable mist output , as well as a safety auto-switch that prevents it from overheating in case it runs out of water.

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

Huge capacity can run for days up to 70 hours run : Unlike the standard size humidifiers, this has an extra-large capacity and can run all night and for days. This large diffuser measures about 11.5 inches height and 6 inches diameter. It can hold up to 135 ounces/More than a gallon / 4000 ml of water and can run up to 70 hours in low mist with one fill.

【4-IN-1 Air Diffuser】: Our flame oil diffuser can be used as an aromatherapy diffuser, mist humidifier, romantic mood light and night light. Add 3-5 drops of your favorite essential oil during use to relieve fatigue,moisturize your skin and create a perfect comfortable environment

【7 Colors Flame Effect】:Compared to similar models with only 1 or 3 flame colors,this flame aroma therapy diffuser has 7 different flame colors, which is perfect for ultrasonic aromatherapy, collects light and mist to create a realistic flame effect.

【240ml-15Hours-30㎡】 Romanplux upgraded fire diffuser humidifier with 240ml water tank allows you to humidify continuously up to 15 hours.The experiment proved that the fireplace diffuser humidifier can easily handle spaces 30m².

WALL DIFFUSER FRAGRANCE REFILL: Includes two 0.7-fluid ounce refill fragrance vials for NEST New York Wall Diffuser units; wall diffusers sold separately

FLORAL AND SEDUCTIVE: Captivating Rose de Mai blended with smoky oud, a hint of incense, black leather, and patchouli

LONG-LASTING ELEGANCE: Convenient refill bottles deliver 30 days of exquisite scent in areas up to 1,000 square feet

include:Dome diffuser. honey comb. color filter. Adapter ring

compatibility for：Godox YONGNUO TRIOPO etc. other square flash

feature:soft edges,color rendering atmosphere,increase the visual intensity of photos,and enhance the appeal of portraits.

✅ VET-RECOMMENDED TO KEEP YOUR CAT CALM + RELAXED - Pet Calming anti anxiety & stress relief products have been vet-reviewed and are vet-recommended to have a full spectrum phermone effect on your pets nerves, support brain function and maintain a calm aggression. This unique product is a sedative supplies for cats, it provides deep sleep for your pet, soothes nerves and causes relaxation leading to sleep


✅ DRUG-FREE SEDATIVES FORMULA : The cat calmer plug in emits a copy of the harmony marker pheromone. This allows cats to feel at ease and maintain a harmonious connection with one another.

✅ CORRECTION PROBLEMATIC BEHAVIOR: Effective for 90% of cats to reduce fighting with dog, scratching, urine marking, stop peeing, spraying, hiding, and other behavior among multi cats and kitten in the house.

Aromatherapy & Humidify:The diffuser through the high-frequency vibration generated by ultrasonic vibration,melts water molecules into nano-scale cold mist of 0.1-5 microns,which is distributed in the air and produces a certain amount of natural negative oxygen ions to purify the air,while achieving the effect of aromatherapy.

Fashion Design:Handmade ceramic aromatherapy diffusers are more natural and safer.The aroma diffuser,whether opened or closed,has a very modern and minimalist design,which is a perfect work of art.

Improve Sleep:The Essential oils diffuser produces negative ions, which can make the air fresh by removing dust particles, fill the air with light aroma, and let you gradually fall into deep sleep. Enough sleep,can keep you young and weaken the dark circles under your eyes.

★【ESSENTIAL OIL DIFFUSER】A truly multi-functional aroma diffuser! Working as a humidifier for essential oils it pumps diffuser oil in a micro-fine vapor, as humidifiers for the bedroom and perfect humidifiers for office, it provides air with moisture, as a night light available in 7 Soothing LED Light. This aroma diffuser is coated with wood grain, which makes it look very natural and primitive.

★【SUPER QUIET】Aroma diffusers for essential oils wood grain is made from the finest quality material with no toxic materials, no corrosive materials used which makes it could survive from falling. Adopted ultrasonic technology, this diffuser is extremely quiet when working. Compared to others, our fragrance diffuser feels velvety and make you feel smooth on your hand. It also helps you breathe better when you are sleeping with the air conditioner on.

★【LARGE CAPACITY AND GREAT MIST OUTPUT】This ultrasonic aroma diffuser and humidifier imparts vibrations of high frequency 2.4 million times/sec. The 500ml fragrance diffuser oil is extremely quiet and the auto shut-off technology making it the best home diffuser, office humidifier and baby humidifier. 500ml capacity for up to 7-8 hours of mist. Suitable for a room up to 250 square feet for uniformly spread small humidifier for bedroom.

WESTIN HOTELS EXCLUSIVE - Transform your home and enhance your well-being with our Westin White Tea scent found in all Westin hotels worldwide. The perfect aromatic addition to your hotel collection diffuser.

WHITE TEA SCENT - Clean and refreshing, our signature White Tea scent elevates your senses with notes of white tea with soothing elements of woodsy cedar and vanilla and offers a revitalizing scent air that is both sweet and crisp. The home fragrance luxury provides aroma 360 degrees around your bedroom, living room, or any other space.

SCENT DIFFUSER - The ScentWave scent delivery system uses a dry-air technology that releases fragrance without sprays, aerosols or messy oils. Adjustable duration, intensity settings and a built-in 24-hour timer make it easy to customize the scent for any environment. It effectively freshens up to 800 square feet of your home or office. The scent machine for home does not use essential oil diffuser technology.

MARRIOTT HOTELS EXCLUSIVE - Fill your home with the signature Attune fragrance, featured exclusively in your favorite Marriott Hotels worldwide.

SIGNATURE ATTUNE SCENT - Fruity top notes of apple and grapefruit mixed with floral jasmine, rose, and cedar create a perfectly balanced scent that refreshes any space in your home.

LASTING FRAGRANCE - Each cartridge lasts up to 300 hours and freshens up to 800 square feet to fill your home or office with inviting fragrance day after day.

【Upgraded 7colors of Flame and Water】: The touchable flame, humidifies and brings you retro feelings at the same time, it is very suitable for home office, yoga, gym, it is a beautiful gift for friends, family or loved ones.

【Colorful Light and Fragrance】: 7color options, use our fragrance diffuser, relax, soothe, calm, fully enjoy your life, carefully crafted with high-quality PP material, button electroplating process, use smart LED light combination with flame humidification effect , to create a realistic fire atmosphere.

【Ultra-quiet Automatic Power-off Protection】: Please do not exceed the max Water Line of 180ml, can work for 2-8 hours, automatic power-off when water is short. 20dB ultra-quiet work, helps to soothe the mood, relieve stress, and improve sleep quality. And, with the help of the built-in smart chip, it will automatically stop working when there is water shortage, which is very safe and reliable.

【Benefits In Full】 Relax, soothe, calm and enjoy your life to the fullest with our fragrance diffuser,which is expertly crafted using high-quality PP material, button plating process and uses intelligent LED lights combined with flame humidifier effect to create a realistic flame atmosphere.

【Original Flame Effect】This essential oil diffuser is perfect for ultrasonic aromatherapy, collects light and mist to create a realistic flame effect that can be adjusted between a soft flame and fierce flame. Add 3-5 drops of your favorite essential oils to relieve fatigue, moisturize your skin and ensure a pleasing atmosphere for you to relax.

【Ultra-Silent & Auto Shut-Off Function】Our fire diffuser featuring an ultra-quiet operation mood of 30dB peaceful environment to help soothe your mood, relieve stress & improve your sleep quality. And, with the help of built-in intelligent chip, Air diffuser will automatically stop working when there is a lack of water, making it very safe and reliable.

[Colorful LED, Natural Salt Stone] Advanced ultrasonic atomization, ultra-fine water mist combined with 7-color gradient LED light, 4-color independent ambient light: blue, green, purple, red. create cool light fog effect.Our natural salt stones with good size and shape for optimal diffusing effect and convenient use

[200ml Water Tank, 10 Hours Humidify] Large-capacity water tank, 200ml is higher than the current similar products. The atomization volume is 20-30ml/h, adding water once, the maximum continuously humidified up to 10 hours. Fully satisfied with 1 day of use

[Super Quiet-- a Good Sleeping Atmosphere for You] With unique noise reduction technology, noise of the diffuser can be controlled below 36dB. The diffuser also creates a “vapor sound” like white sound to make people feel relaxed and easy to sleep.