AquaOasis® Cool Mist Humidifier (2.2L Water Tank) Quiet Ultrasonic Humidifiers for Bedroom & Large room - Adjustable -360 Rotation Nozzle, Auto-Shut Off, Humidifiers for Babies Nursery & Whole House
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Extended holiday returns
FREE refund/replacement until Jan 31, 2026 Learn more
FREE refund/replacement until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Friday, Dec 26
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Features
- IMMEDIATE DRY AIR RELIEF! Want to eliminate the suffering from the terrible effects of dry air? No need to struggle with cheap flimsy and leaky desk humidifiers. This quality ultrasonic humidifier is the one youre looking for. It pumps relief immediately and effectively! Feel better in minutes!
- OPERATES IN TOTAL SILENCE SLEEP LIKE A BABY! No humming, whistling, or crackling as this durable Whole-House Humidifier steadily and efficiently dispenses the soothing cool mist you crave. SLEEP better, BREATHE better, LIVE better! Youll wish you found this years ago!
- MULTIPLE MIST SETTINGS + 360 PERCENT ROTATING NOZZLE This Humidifier was created with YOU in mind. Your environment, your needs, and your preferences! Designed with a super simple control dial and 360 rotating nozzle so that you can fully control and customize the mist output and mist flow direction. AUTOMATIC SHUT OFF No need to babysit this Humidifier. We know youll want to shut this off before the tank runs out... Rest assured you can SET IT AND FORGET IT!
- 2.2L LARGE WATER TANK FILTER FREE FEATURES A LIFETIME WARRANTY! Made with an impressive 2.2L super large water tank that keeps your Room-Humidifier right on chugging for over 26 hours on a single fill!
- HASSLE-FREE LIFETIME REPLACEMENT! We take tremendous pride in our expert workmanship and stellar customer service record, and we promise to treat you like family - even for gifts! In addition to our lifetime replacement, if you aren't happy with your purchase, we will simply refund your money - no questions asked!
Brand: AquaOasis
Special Feature: Quiet
Color: White
Capacity: 2.2 Liters
Floor Area: 400 Square Feet
Brand: AquaOasis
Special Feature: Quiet
Color: White
Floor Area: 400 Square Feet
Operation Mode: Ultrasonic
Product Dimensions: 7"D x 8"W x 10"H
Item Weight: 1.6 Pounds
Room Type: Bedroom, Kids Room, Nursery, Office
Model Name: AO-101
Included Components: 1 x 2.2L Cool Mist Humidifier, 1 × User Manual, 1 × Cleaning Brush
Voltage: 110 Volts
Wattage: 24 watts
Shape: Rectangular
UPC: 733569442881
Unit Count: 1.0 Count
Item Weight: 1.56 pounds
Item model number: AO-101
Date First Available: August 10, 2020
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Dec 26
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Color: White
I bought the AquaOasis Cool Mist Humidifier (2.2L) about two to three years ago, and I’ve been using it ever since. It’s been extremely reliable and powerful. The mist output is strong, and it easily runs for 8–10 hours depending on the humidity level setting. While it doesn’t automatically adjust based on room humidity, the adjustable knob works great — it lets you control exactly how much mist you want. It does an excellent job of maintaining comfortable humidity levels even in larger rooms. The only downside is the refilling process. You have to lift the top portion, unscrew the cap at the bottom, flip it over to fill with water, and then reassemble it — which can be a little inconvenient. Because of that, we usually refill it just once a day. Overall, though, it’s a durable, effective, and quiet humidifier that’s served us well for years. Highly recommended if you’re looking for steady performance and great mist output!
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Reviewed in the United States on November 2, 2025 by AG
Color: White
EXTREMELY IMPORTANT! When you unpack the box, there is a small package with a spout cap and brush. These are both critical pieces. Do not be tempted to use this machine without the spout - if you do, everything around the machine will become drenched quickly. I couldn’t be happier with this humidifier. The tank is big enough that it lasts through the night, even on the upper power levels of the dial. Out of the box, it’s very easy to set up. I cannot stress enough the importance of the spout cap though. It comes in a small packet and I assumed it was either an enhancement or possibly to be used for storage. Nope! If you turn it on without the spout, you will be enchanted by the massive puffs of lovely humidity coming out and think that’s all you need. But the fact is that huge clouds like that are heavy - too heavy to float away from the machine. They settle and condense immediately and very quickly, you’ll have a pool of water; not only on the surface you’ve set the machine on but it will soak whatever fabric might be nearby. The spout not only prevents this, it’s remarkably effective at directing the mist and pushing it further away from the machine and higher into the air. The provided brush is marginally useful for cleaning the rubber inside parts. But be sure to do this, especially if (like me) you choose to ignore the warning not to use essential oils or other non-water liquids. About adding oils: The oils WILL erode the plastic tank and fan mechanisms or even clog the wet wicking filter. There is product called Vicks Vaposteam that seems to be more effective and safer. My research shows that it’s less damaging to a humidifier because it has a high alcohol content so it evaporates and doesn’t clog as much. Edited to add: “Doesn’t clog as much” means it still clogs it. The oils WILL gunk and clog up the parts, sooner than later. I learned this very literally 3 minutes after posting this review. I looked over at my adorable little humidifier lovingly and noticed the bright red placemat I’d set it on was…maroon. Lifted it up and discovered it was saturated. Not because of a defect in the product, but a defect in the user. I’ve been adding nasal passage clearing oils to help with a cold and didn’t clean it out before adding more to the next water refill. Sure enough, because it’s a cold mist humidifier, the oils sank to the bottom and solidified near the drain. Backed the whole thing up. It took boiling water and a toothbrush to scoop the goop. About cleaning: Especially if you add an oil but even if you do not, debris and gunk will collect at the bottom of the tank by the rubber parts and wiping them away doesn’t get everything out. Oil will attract even more gunk and can very easily create molds and bacteria’s which, if you don’t clean out, will spew into the air with your mist. This really has been a great product and value - I plan on ordering a couple more for the holidays.
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Reviewed in the United States on December 12, 2022 by Marybeth
Color: White
This is a good little humidifier. It’s quiet, it does what it’s supposed to, and it’s easy to clean. It’s easy to operate, too; you just pick a setting by rotating a knob. I like that it has a light that indicates it’s out of water and it stops itself from running empty. It is VERY hard to open, though. Like a lot of humidifiers, the opening to refill the water is on the bottom of the water tank. Inevitably it does drip when you go to refill it and like I said, VERY hard to open. It’s a twist seal and I’m an able bodied 30 year old woman and have difficulty opening it sometimes. I couldn’t imagine someone with low hand strength being able to open this at all. It also has a relatively small-ish water tank. I think this would be good for a bedroom, not so much a large room. I refill it probably two or three times a day but I have it running on the highest setting.
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Reviewed in the United States on January 18, 2025 by Megan S
Color: White
This is price just right and works very well! Very easy to use just pull water into it put back on the base and turn it on. It puts a cool mist into the air whether it’s the summer or the winter it’s putting moisture into the air so you can breathe great for someone who suffers from allergies or respiratory issues and also great for pets who have allergies and respiratory issues. In the winter when you have the heat on, this is amazing you put it on and you get that moisture in the air helps to breathe better. I bought this for my dog. He’s a bulldog makes a big difference and I’m noticing it helps me.
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Reviewed in the United States on November 28, 2025 by Oldskoolsgirl
Color: White
Have used for a year and it has worked very well. Good product.
Reviewed in the United States on December 4, 2025 by Linda Hyslop