Dehumidifier sizing Last reviewed June 30, 2026

What Size Dehumidifier for a Bedroom?

By the WhatSize editorial team 5 min read Standards-reviewed

TL;DR

For a typical bedroom (150-300 sq ft), a 22-pint dehumidifier is usually sufficient. If the bedroom has an attached bathroom or is a large master suite, consider 35 pints.

Looking for a different size? See What Size Dehumidifier for a 500 Sq Ft Room? or browse all dehumidifier sizing guides.

Special Considerations for Bedroom Dehumidifiers

Bedrooms present a unique case for dehumidifier sizing because noise level matters almost as much as capacity. A 22-pint dehumidifier is sufficient for most bedrooms up to about 300 sq ft, but you'll want to prioritize models with quiet operation (under 50 dB) since the unit will run while you sleep.

Top picks for this size

Santa Fe Compact70 Dehumidifier #ad

★★★★ 4.2 · 106+ · $1628

Amazon

Midea 1,500 Sq. Ft. Energy Star Certified Dehumidifier With Reusable Air Filter 22 Pint - Ideal For Basements, Large & Medium Sized Rooms, And Bathrooms (White) #ad

★★★★ 4.4 · 7K+ · $160

Amazon

GE Energy Star Portable Dehumidifier 50 Pint with Pump, Perfect for Bedroom, Basement & Garage, Ideal for High Humidity Areas, Built-in Pump Eliminates Need to Check Water Levels, Grey #ad

★★★★ 4.2 · 858+ · $229

Amazon

Midea Cube 20 Pint Dehumidifier for Basement, Up to 1,500 Sq. Ft. dehumidifier with drain hose, ENERGY STAR Certificated, Smart Control, Compatible with Alexa, White #ad

★★★★ 4.4 · 2K+ · $160

Amazon

Keystone Energy Star 22-Pint Portable Dehumidifier for Large Rooms up to 1,500 Sq.Ft. with Auto-Shutoff & Timer, Quiet and Moisture Absorber For Basement, Garage, Living Room #ad

★★★★ 4.3 · 47 · $149

Amazon

Hisense 35 Pint 3,000 sq. ft. Portable Dehumidifier, 3-Speed, Easy-carry handle - HD3524 (Renewed) #ad

★★★★ 4.4 · 114+ · $100

Amazon

Frigidaire 22-Pint Portable Dehumidifier with Wi-Fi and Energy Star Certification for Small/Medium Rooms, Bedrooms & Bathrooms, Custom Humidity Control, Auto Shut Off, White #ad

★★★★☆ 4.6 · 122+ · $189

Amazon

AIRPLUS 4500 Sq. Ft Dehumidifiers for Home, 70 Pints Dehumidifier for Basement with Drain Hose, Continuous Drainage, Intelligent Humidistat, Dehumidifier for bathroom, bedroom, Large Room #ad

★★★★☆ 4.5 · 95 · $129

Amazon

GE Portable Dehumidifier 25 Pint, Perfect for Bedroom, Basement & Garage or Rooms up to 1500 Sq Ft, Ideal for High Humidity Areas, Complete with Empty Bucket Alarm & Clean Filter Alert #ad

★★★★ 4.3 · 61 · $229

Amazon

AEOCKY 50 Pint/Day Compressor Dehumidifier, 3500Sq.Ft for Basement, Home, Bedroom, Bathroom, with Drain Hose, 0.8 Gallon Water Tank Capacity, Intelligent Humidistat, Quiet #ad

★★★★★ 5 · 713+ · $170

Amazon

Hogarlabs 50 Pint Dehumidifier for Basement & Whole House, Covers 3500 Sq.Ft, with Drain Hose & Auto Humidity Control, Quiet for Bedroom, Bathroom, Garage, Large Room Dehumidifier #ad

★★★★ 4.3 · 1K+ · $152

Amazon

3000 Sq.Ft Dehumidifiers for Home with Drain Hose 35 Pints, Compressor Dehumidifier Smart Humidity Control, 3 Modes, 24H Timer, Auto-Defrost, Dry Clothes Dehumidifiers for Basement Bathroom Bedroom #ad

★★★★☆ 4.5 · 85 · $97

Amazon

Garvee 50 Pint Dehumidifier for up to 5,500 Sq Ft, with Reusable Air Filter 2.4 Gallon Water Tank, Compact for Home, Basement, Large Sized Rooms, Bathroom #ad

★★★★ 4.3 · 9 · $184

Amazon

Whirlpool 25 Pint Energy Star Certified Dehumidifier in White, Compact Quiet Efficient Humidity & Moisture Absorber for Home, Bathroom, Bedroom, Living Room, Garage, Attic, Crawl Space, Whole Home #ad

★★★★★ 5 · 7 · $195

Amazon

These Amazon-available picks meet the calculated spec. For region-specific or licensed contractor-installed options, consult a local professional. See our Disclaimers.

When a Bedroom Needs More Than 22 Pints

If the bedroom is a large master suite (400+ sq ft) with sitting area
If there's an attached bathroom that generates steam
If the bedroom is in a basement or below-grade

Frequently asked questions

What size dehumidifier do I need for a bedroom?

Look for models rated under 50 dB. The hOmeLabs 22-Pint and Midea 22-Pint Cube both operate around 47-49 dB on low speed.

Can a dehumidifier make a bedroom too dry?

Yes. If a dehumidifier runs continuously without a humidistat, it can drop humidity below 30%. Always set a target humidity (45-50%) and let the unit cycle automatically.

Should I close the bedroom door when running a dehumidifier?

For best results, yes. Closing the door contains the dehumidified air within the bedroom, making the unit more efficient.

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