How long does one fill last?

Up to 18 hours on continuous mist, less in dry air or on the higher setting. Expect to refill daily in a dry grow tent.

Does the app work on its own?

No. App and remote control work through the Vivosun app only when the humidifier is used with VGrow.

Is it big enough for a grow tent?

It suits small tents, propagation and seedling areas. For a full-size tent or a large room, a bigger tank and higher output are better.

Does it shut off when empty?

Yes, it has automatic shutoff when the water runs out.

Is it safe for a baby room?

VIVOSUN lists it for nurseries and baby rooms, and it has automatic shutoff. It carries no certifications or listings, so keep it out of reach and clean the tank regularly.

Is $22.49 a good price?

It is the lowest of the 6 stores pricing it new as of November 6, 2026, and near the bottom of its recent range. At this price the risk is low for a small-space unit.

Where is the VIVOSUN 750ml Cool Mist Mini Humidifier cheapest?

At Walmart, for $22.49, as of our latest check.

What do buyers say about the VIVOSUN 750ml Cool Mist Mini Humidifier?

Rated 3.6 out of 5 from 11 ratings.

Where can I buy the VIVOSUN 750ml Cool Mist Mini Humidifier?

7 stores we checked sell it, including eBay, Walmart, Home Depot, Green Thumb Depot, Wayfair.

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VIVOSUN 750ml Cool Mist Mini Humidifier

Best price now

$22.49at WalmartObserved Nov 6, 2026, 6:51 PM

Compared across 6 stores. Prices are checked against each store and labelled with when.

Visit Walmart

VIVOSUN 750ml Cool Mist Mini Humidifier

Best price now

$22.49at WalmartObserved Nov 6, 2026, 6:51 PM

Compared across 6 stores. Prices are checked against each store and labelled with when.

Visit Walmart

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Our take on the VIVOSUN 750ml Cool Mist Mini Humidifier

The VIVOSUN 750ml Cool Mist Mini Humidifier is a small portable unit for grow tents, rooms and nurseries. It holds 750 ml and runs up to 18 hours on continuous mist, with a second intermittent mode and automatic shutoff when the tank empties. It pairs with the Vivosun app for remote control when used with VGrow. At $22.49 at Walmart as of November 6, 2026, it sits at the low end of its recent range across 6 stores.

Best forSmall grow tents and seedling/clone spacesBedrooms and baby rooms needing light humidityDesk or shelf use where space is tightBuyers who want app control on a budget

Pros

Compact and light at 390 g, easy to move between tent and room
Two mist modes: continuous and intermittent
Automatic shutoff when water runs out
Up to 18 hours of continuous mist per fill
App and remote control via Vivosun app with VGrow

Cons

750 ml tank needs frequent refills in a dry room or large tent
App control only works with VGrow, not standalone
No certifications or listings
Small output suits small spaces, not whole rooms
3.6 out of 5 from 11 ratings suggests mixed owner experience

VIVOSUN 750ml Cool Mist Mini Humidifier prices at every store

WalmartNew
In stockSold by VIVOSUN
$22.49Observed Nov 6, 2026, 6:51 PM
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Home DepotNew
In stock
$24.99Observed Nov 6, 2026, 6:51 PM
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Green Thumb DepotNew
In stock
$24.99Observed Nov 6, 2026, 6:51 PM
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WayfairNew
In stock
$28.99Observed Nov 6, 2026, 6:51 PM
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TrimleafNew
In stock
$39.00Observed Nov 6, 2026, 6:51 PM
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eBayNew
Availability unknownSold by vivosun-official (99.7% positive, 30,600 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.
$22.49Free shippingVerified
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eBayOpen box
Availability unknownSold by scland06 (100% positive, 109 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.
$18.00+ $6.65 shippingVerified
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Also available at

eBayCheck price at eBay
Vivosun.comCheck price at Vivosun.com

VIVOSUN 750ml Cool Mist Mini Humidifier price history

Lowest price we've seen: $22.49 on Nov 6 at Walmart. Tracked across 7 stores since Nov 6.

What reviewers say

3.6 / 511 ratings

Only 11 ratings so far, averaging 3.6 out of 5. Owners treat it as a cheap, compact mist source for small grow spaces rather than a room humidifier.

What people mention

SizePraisedOwners like how small and light it is for tents and shelves.
BatteryMixedRuntime is fine on low mist but short on continuous in dry air.
App controlCriticisedApp and remote features only work when paired with VGrow.
OutputMixedMist is enough for a small tent but not a full room.
BuildMixedRatings suggest a budget feel and uneven reliability.

Specifications

Humidification Type: Cool Mist
Automatic Shutoff: Yes
Water Tank Capacity: 750 ml
Volume: 750 mL
App Control: Yes (compatible with the Vivosun app when used with VGrow)
Remote Control: Yes (via Vivosun app)
Portability: Yes

Questions and answers

How long does one fill last?: Up to 18 hours on continuous mist, less in dry air or on the higher setting. Expect to refill daily in a dry grow tent.
Does the app work on its own?: No. App and remote control work through the Vivosun app only when the humidifier is used with VGrow.
Is it big enough for a grow tent?: It suits small tents, propagation and seedling areas. For a full-size tent or a large room, a bigger tank and higher output are better.
Does it shut off when empty?: Yes, it has automatic shutoff when the water runs out.
Is it safe for a baby room?: VIVOSUN lists it for nurseries and baby rooms, and it has automatic shutoff. It carries no certifications or listings, so keep it out of reach and clean the tank regularly.
Is $22.49 a good price?: It is the lowest of the 6 stores pricing it new as of November 6, 2026, and near the bottom of its recent range. At this price the risk is low for a small-space unit.
Where is the VIVOSUN 750ml Cool Mist Mini Humidifier cheapest?: At Walmart, for $22.49, as of our latest check.
What do buyers say about the VIVOSUN 750ml Cool Mist Mini Humidifier?: Rated 3.6 out of 5 from 11 ratings.
Where can I buy the VIVOSUN 750ml Cool Mist Mini Humidifier?: 7 stores we checked sell it, including eBay, Walmart, Home Depot, Green Thumb Depot, Wayfair.

Stores we've priced the VIVOSUN 750ml Cool Mist Mini Humidifier at

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Design Highlights

Portable

Depth

9.65 cm

Height

17.78 cm

Weight

390 g

Width

9.65 cm

Functionality Type

Humidifier

Mist Temperature

Cool mist

Mist Type

Cool mist, Continuous spray, Intermittent spray

Modes

2 Mist Modes

Functionality Highlights

With Automatic Shutoff

Recommended Location

Grow Tents, Room

Mist Output

Up to 18 hours (continuous misting)

Certified By

No Certifications or Listings

Suitable Use

Humidification

Age Range

Adult