Humidifiers / 1 gallon
Collection

1 Gallon Humidifiers

Updated 2026-11-03

Standardized tank sizes that offer a balance of runtime and manageable weight 30 humidifiers · 19 brands

For bedrooms Cool mist Mini Quiet With night lights With auto shut-off For plants Top fill USB Ultrasonic Car For baby nurseries Travel With aroma diffusers White 6 liter and larger Affordable With timers For kids 2 to 3 liter Black Smart Whole house 1 gallon 4 to 5 liter With remote controls Warm mist Blue Evaporative Rechargeable Pink Green Wood grain For women Flame effect Tower Gray Brown Mushroom and rain cloud

Best 1 Gallon Humidifiers

# Model Band Label Specs See deal
1 Filtered Cool Mist Humidifier for Medium Rooms 8.9 Vicks Filtered Cool Mist Humidifier for Medium Rooms $49.49 Vicks Blue · Cool mist · White
$49.49 See deal
2 One Gallon Top Refill Humidifier with Water Filter 8.7 MEGAWISE One Gallon Top Refill Humidifier with Water Filter $20.06 MEGAWISE For bedrooms · Cool mist · Quiet
$20.06 See deal
3 Honey oak evaporative whole house humidifier 8.4 AIRCARE Honey oak evaporative whole house humidifier $220 AIRCARE With auto shut-off · Whole house · Evaporative
$220 See deal
4 One Gallon Top Fill Ultrasonic Humidifier 8.5 Homedics One Gallon Top Fill Ultrasonic Humidifier $79.95 Homedics For bedrooms · Ultrasonic · Top fill
$79.95 See deal
5 Orange Ultrasonic Cool Mist Humidifier 1 Gallon 9.0 Crane Orange Ultrasonic Cool Mist Humidifier 1 Gallon $51.77 Crane For bedrooms · Cool mist · Ultrasonic
$51.77 See deal
6 1.45 Gal Evaporative Humidifier Afloia 1.45 Gal Evaporative Humidifier $59.99 Afloia Bedrooms · Black · Evaporative
$59.99 See deal
7 Smart Ultrasonic Humidifier with Large 6L Tank BREEZOME Smart Ultrasonic Humidifier with Large 6L Tank $39.99 BREEZOME For bedrooms · Ultrasonic · For baby nurseries
$39.99 See deal
8 Stainless Steel Ultrasonic Large Room Humidifier 8.4 CarePod Stainless Steel Ultrasonic Large Room Humidifier $279 CarePod For bedrooms · Cool mist · Quiet
$279 See deal
9 Smart Cool Mist Humidifier with Nightlight 8.7 Dorel Juvenile Group-CA Smart Cool Mist Humidifier with Nightlight $89.99 Dorel Juvenile Group-CA For bedrooms · Cool mist · Quiet
$89.99 See deal
10 White stainless steel cool mist humidifier feekaa White stainless steel cool mist humidifier $79.99 feekaa For bedrooms · Cool mist · For plants
$79.99 See deal

A tank size that splits the difference

A one gallon tank holds enough water to run through the night without needing a refill before morning. The size keeps the unit light enough to carry from room to room when full, unlike larger tanks that stay put. It suits a bedroom or a home office where you want steady moisture without constant tending.

How these humidifiers are built

Many in this size use ultrasonic cool mist, which sends water into the air without heat. Some have top-refill openings so you can pour from a pitcher without flipping the tank. A few trade the plastic tank for stainless steel, which changes the weight and the cleaning routine.

Details that matter at this capacity

Runtime at this size lands around a full night, with some models reaching into the next day on a low setting. Noise stays low on ultrasonic units, often quiet enough for a nursery. Look for a wide tank opening if you want to wipe the inside without tools, and check whether the mist output adjusts or runs at one speed. Colors tend toward blue, gray, and clear or white finishes.

See also
For bedrooms Cool mist Top fill Ultrasonic White For baby nurseries For plants With auto shut-off
Quick answers

One gallon humidifier questions

How long does a one gallon humidifier run?

Most run about a full night, with some reaching thirty hours on a low setting.

Is a one gallon humidifier heavy when full?

It stays light enough to lift and move, unlike larger tanks that stay in place.

Do these humidifiers use filters?

Some are filter-free, while others take a water filter or optional filter.

What rooms suit a one gallon tank?

Bedrooms and home offices are the common fit for this capacity.