best humidifier for 4x4 grow tent Mars Hydro 15L Ultrasonic Cool Mist Humidifier for Large Room
SKU: 32608553763
best humidifier for 4x4 grow tent

best humidifier for 4x4 grow tent Mars Hydro 15L Ultrasonic Cool Mist Humidifier for Large Room

Sale price$18.76 Regular price$20.84
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Description

best humidifier for 4x4 grow tent Mars Hydro 15L Ultrasonic Cool Mist Humidifier for Large RoomMars Hydro 15L Large Humidifier for Plants with Ultrasonic Cool Mist, Temperature Humidity Sensor & Remote Control The Mars Hydro 15L Humidifier provides the perfect balance of power and convenience for maintaining ideal plant growing conditions. Its four adjustable mist levels and automatic humidity control ensure consistent moisture, promoting healthy plant growth. Designed for grow tents (5'x5'+ tents or use across two tents), greenhouses, and

Mars Hydro 15L Large Humidifier for Plants with Ultrasonic Cool Mist, Temperature Humidity Sensor & Remote Control

The Mars Hydro 15L Humidifier provides the perfect balance of power and convenience for maintaining ideal plant-growing conditions. Its four adjustable mist levels and automatic humidity control ensure consistent moisture, promoting healthy plant growth.

Designed for grow tents (5'x5'+ tents or use across two tents), greenhouses, and indoor spaces, it features a top-fill design and wheels for easy refilling and movement. The included extension tube ensures even mist distribution, making it a practical and reliable choice for all of your plant care needs.

  • Capacity: 15L

  • Power: 100W

  • Run time: 29H (Max)

  • Coverage: 861ft² 

 

Features

Wide Coverage & Strong Mist Output: Capable of humidifying spaces up to 861ft² with a high 1600ml/h mist output. The extension tube ensures that the mist is evenly distributed, reaching every part of the room or grow tent.

Large 15L Tank: The extra-large 15L capacity allows the humidifier to run continuously for up to 29 hours, making it ideal for large spaces and reducing the hassle of frequent refills.

Customized Humidity Control: Easily adjust between four mist levels with humidity settings from 35% to 95%. The humidistat automatically regulates the mist output to maintain a stable environment for plant growth.

Consistent Climate Control and Precise Detection: Maintain optimal humidity from 35% to 95% with built-in sensors that automatically adjust mist output. Real-time temperature display keeps you informed, ensuring stable and ideal growing conditions.

Convenient Design and Easy Mobility: The top-fill design simplifies refilling, while the 4-wheel base makes it easy to move the unit between rooms, ensuring maximum flexibility in use.

Versatile Operation with Telescopic Hose and Timer: Direct humidity to specific areas in the grow space using the telescopic hose for focused water distribution. Manage settings easily with a 1-12 hour timer and activate sleep mode to create an undisturbed environment.

Safe, Silent, and Efficient Operation: Enjoy operation below 40dB, it's perfect for grow tents (5x5 and bigger), plant rooms, and greenhouses. Screen sleep mode (auto screen off or one-key screen off) prevents light interference with your plants.

 

  

Specs

Voltage: AC100-240V

IP65 Waterproof: No

Dimensions: 11.81" x 9.05" x 22.95"

Warranty: 1 Year

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 32608553763

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4.8 ★★★★★
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Adam
Bozeman, US
★★★★★ 4
Fantastic pillow for the price, adjustable is a different ball-game entirely.
Size: Queen (1 Count), Color: White
Overall, I'm quite pleased with this. The fact that it is fully adjustable (adding or removing foam, and they give you a bunch extra) is a massive boon as I like pillows to be pretty low profile. It feels nice to the touch, and compresses nicely but not a ton like down. The memory foam that is inside of it seems to be combined with some kind of a harder material, it's all shredded so I can't tell what it is, but it seems like maybe plastic or something of the kind. Hasn't been an issue in any way, but was just weird feeling it when removing foam. I took a point off because there seems to be some false advertising going on. You can see in their picture that there is a tag that says bamboo side, the other side of that says cooling side. They also mention it in their advertising. As far as I can tell that is not true at all. The cover unzips so that you can remove the material so you can see that there is nothing on either side of it, and both sides appear visually identical to each other. Certainly I would NOT call this a cooling pillow in any way. It's maybe decently cool if you leave it in a cool place for a while, but over the course of the night warms up quite a bit. I did not notice any appreciable difference in the cooling of either side of it. There is a definite noticeable smell to it, but I wouldn't call it 'bad' like most memory foam things are when they come from the factory. It smells kind of like some kind of cleaning solution in a noticeable but not unpleasant sense. All in all, for the price this is a fantastic pillow and I would definitely recommend it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 14, 2026
J
Verified Purchase
Joshua Sojka
Charlottesville, US
★★★★★ 5
Most Comfy Pillow Ever Used
Size: King Size Pack of 2, Color: White
I recently purchased the BETU Cooling King Size Pillows Set of 2, and I have been thoroughly impressed with their quality and performance. These pillows have truly transformed my sleeping experience, making them an essential addition to my bedroom. First and foremost, the shredded memory foam provides fantastic support while remaining incredibly comfortable. These pillows adapt perfectly to my head and neck, offering excellent support for back, neck pain relief, and side sleeping. The adjustability of the memory foam allows me to customize the firmness to my liking, ensuring a perfect balance between soft and firm support. This customization has made a tremendous difference in my sleep quality, reducing any discomfort and ensuring I wake up feeling refreshed and pain-free. One of the standout features of these pillows is their cooling capability. As a hot sleeper, I struggled to find pillows that keep me cool throughout the night. The BETU Cooling Pillows effectively dissipate heat and maintain a comfortable temperature, allowing me to enjoy a restful and uninterrupted sleep. The cooling technology is truly a game-changer for anyone who tends to overheat during the night. The pillow covers are another bonus. They are soft, breathable, and easily removable for washing, ensuring that the pillows remain fresh and hygienic. The white cover adds a clean and elegant look to the bedding, making them aesthetically pleasing as well. The king size is generous and luxurious, providing ample space and comfort. Whether used for sleeping, lounging, or reading in bed, these pillows offer an unparalleled level of comfort and support. In summary, the BETU Cooling King Size Pillows Set of 2 is an exceptional product. The combination of shredded memory foam, adjustable firmness, and cooling technology makes these pillows perfect for hot sleepers and those in need of superior support for back and neck pain. The high-quality covers and overall design further enhance their value. I highly recommend these pillows to anyone looking to improve their sleep quality and comfort.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 31, 2025
C
Verified Purchase
Chemom
Charlottesville, US
★★★★★ 5
Cooling pillow
Size: Queen (1 Count), Color: White
Good pillow very comfy and cool. Good quality material very durable. I love using it. Perfect size!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
Z
Verified Purchase
zhaoxingwei
West Palm Beach, US
★★★★★ 5
Cool, Supportive, and Great for Hot Sleepers
Size: Queen Size Pack of 2, Color: White
These cooling pillows have been a great upgrade for my sleep. The shredded memory foam provides nice support while still feeling soft and adjustable. I like that the pillows keep their shape and don’t go flat during the night. The cooling fabric really helps if you tend to sleep warm. They feel breathable and comfortable, especially compared to traditional memory foam pillows that trap heat. The queen size is generous and works well for both side and back sleeping. Overall, a great value for a set of two pillows. Comfortable, supportive, and noticeably cooler than my old ones. I would definitely buy them again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2026
R
Verified Purchase
Raven
Pawtucket, US
★★★★★ 3
Great pillows, needs more filler tho!
Size: King Size Pack of 2, Color: White
Partner says it's the best thing that's ever happened and has helped his back/shoulder pain tremendously. I personally think it needs to give you more fluff or whatever the filling is. Because the tiny bag that comes btwn the two was not enough! However, still comfy, filling is nice and fluffy like a cloud.
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Reviewed in the United States on March 25, 2026

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