Humidifiers / 1 gallon
Collection
1 Gallon Humidifiers
Updated 2026-09-19
Standardized tank sizes that offer a balance of runtime and manageable weight 25 humidifiers · 15 brands
For bedrooms
Cool mist
Mini
Quiet
With night lights
With auto shut-off
For plants
USB
Top fill
Ultrasonic
For baby nurseries
Car
Travel
With aroma diffusers
White
6 liter and larger
Affordable
With timers
For kids
2 to 3 liter
Smart
Black
Whole house
4 to 5 liter
1 gallon
Rechargeable
With remote controls
Warm mist
Blue
Evaporative
Pink
Green
For women
Wood grain
Flame effect
Tower
Gray
Brown
Mushroom and rain cloud
Best 1 Gallon Humidifiers
BREEZOME
Smart Ultrasonic Humidifier with Large 6L Tank
For bedrooms Ultrasonic For baby nurseries 6 liter and larger Smart
CarePod
Stainless Steel Ultrasonic Large Room Humidifier
For bedrooms Cool mist Quiet Ultrasonic 4 to 5 liter
Crane
Orange Ultrasonic Cool Mist Humidifier 1 Gallon
For bedrooms Cool mist Ultrasonic For plants For baby nurseries For kids
Dorel Juvenile Group-CA
Smart Cool Mist Humidifier with Nightlight
For bedrooms Cool mist Quiet With night lights For baby nurseries Smart
Everlasting Comfort
Ultra Quiet 6L Top Fill Humidifier with Night Light
For bedrooms Cool mist Quiet With night lights Ultrasonic With auto shut-off
feekaa
White stainless steel cool mist humidifier
For bedrooms Cool mist For plants For baby nurseries White 4 to 5 liter
Hunter Fan
Sage evaporative humidifier and air purifier
For bedrooms Quiet For baby nurseries Evaporative
MEGAWISE
One Gallon Top Refill Humidifier with Water Filter
For bedrooms Cool mist Quiet With night lights With auto shut-off For plants
PureGuardian
1.6 Gallon Top Fill Cool Mist Ultrasonic Humidifier for Large Rooms
For bedrooms Cool mist Ultrasonic Top fill White With timers
Vornado
Energy smart evaporative humidifier with dual tanks
With auto shut-off Whole house Evaporative
BREEZOME
Cool Mist Humidifier with 7 Color Mood Light
For bedrooms Cool mist Top fill 6 liter and larger
Crane
Clear and White Ultrasonic Nursery Humidifier
For bedrooms Cool mist Ultrasonic For plants For baby nurseries White
PureGuardian
Digital warm and cool mist ultrasonic humidifier
Cool mist Ultrasonic With auto shut-off With timers Warm mist
Crane
Top Fill Cool Mist Humidifier with Essential Oil Diffuser
For bedrooms Cool mist With night lights Ultrasonic With auto shut-off With aroma diffusers
Crane
Clear and White Droplet Ultrasonic Humidifier
For bedrooms Ultrasonic For plants For baby nurseries White
Crane
Grey Drop Humidifier with Integrated Sound Machine
Gray Cool mist With night lights Ultrasonic Top fill
Crane
Collapsible Cool Mist Humidifier in Blue and White
Blue For bedrooms Cool mist For plants Top fill For baby nurseries
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.
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.