Dehumidifier Buying Guide

A dehumidifier combats muggy air, prevents mold buildup and helps you breathe easier in humid conditions. This dehumidifier buying guide outlines your options and provides tips on dehumidifier uses.

Dehumidifiers 101

Unlike a humidifier, which adds moisture to the air, a dehumidifier eliminates moisture, allowing you maintain the different rooms in your home at comfortable, safe humidity levels. For example, dehumidifiers in basements, bathrooms and laundry rooms can discourage the growth of mold, mildew and dust mites and protect your belongings from damage. As well, dry air feels cooler. By putting a dehumidifier in your living room or bedroom, you'll have less need to run your air conditioner, saving you money on your electrical bill. Dehumidifiers come in a variety of sizes, from small-capacity portable models to larger appliances that can quickly dry out a room after a flood or burst pipe. Whatever your situation, there's a dehumidifier that will fit your budget and help you make your home more comfortable for your family.

Types of Dehumidifiers


Small-Capacity Dehumidifiers

Best for small spaces that have moist air, small-capacity dehumidifiers are compact and convenient devices for keeping rooms comfortable. These dehumidifiers are the most affordable models available, but use smaller tanks that may need more frequent attention. Look for small-capacity models for bedrooms and other rooms that are damp during humid weather but don’t produce a lot of water. Because of their size, these dehumidifiers are best used to control humidity levels instead of drying after a flood.

Medium-Capacity Dehumidifiers

Medium-capacity dehumidifiers conveniently take up less floor space than large-capacity models, but can remove more water than their smaller counterparts. Medium-capacity models can be used for any number of tasks, from controlling moisture levels in bathrooms with showers to combating mildew growth after a plumbing emergency. Look for a model that’s easy to move, possibly with wheels, but that also has a fairly large capacity to remove water.

Large-Capacity Dehumidifiers

Clean up floods or keep large spaces at the perfect humidity with a large-capacity dehumidifier. These models work quickly, so they're well-suited for removing moisture from a space after a flood. With their large capacity, they're also ideal for controlling mold and mildew growth in your home or regulating humidity in large basements. Look for extra large tanks to save you from frequently emptying the machine, and multiple settings that allow you to adjust the device for different purposes, from cleanup to humidity control.

Dehumidifier Uses:

• Dehumidifiers are often used to dry out basements and minimize water damage from floods or plumbing emergencies like burst pipes
• Many people find dehumidifiers help soothe allergy symptoms, which can cause more discomfort than muggy air
• Musty odours from mold or still water can be eliminated with a dehumidifier
• Mold, mildew and other plant growth cannot survive in dry conditions. A dehumidifier can kill or prevent mold from growing in your walls
• Dehumidifiers can reduce condensation on windows and doors, especially in the winter months
• If you live in a moist climate, a room with a dehumidifier can offer a cool respite from the humid outdoors
• A dehumidifier can stop floors from squeaking by removing excess moisture from wooden components
• A dehumidifier can reduce the burden on your air conditioner by creating air that’s easier for your air conditioner to cool

Dehumidifier Features

Easy-to-Empty Tank +

Your dehumidifier’s water tank should be easy to detach and empty, so you don’t end up spilling water all over your newly-dried space. Look for tanks that aren’t too heavy to lift but are large enough that they don’t need constant attention. Smaller-capacity dehumidifiers usually feature lighter tanks that are already easy to manage, but larger models should have special connections to make removing and reattaching much easier.

Timers and Automatic Shut-Off +

Timers and automatic shut-off controls give you more control over the moisture level in your home or apartment. Simply set the controls to your liking and let the dehumidifier work its magic. Whether you’re seeking to maintain comfortable living conditions in your space or you're drying out after a flood, dehumidifiers with timers and automatic shut-offs help ensure the humidity levels are just where you want them.

Built-In Humidistat +

The humidity in your home needs to be balanced and feel natural to you and your family. Humidistats help you monitor a room’s moisture levels and adjust your dehumidifier accordingly. With a humidistat, you can monitor humidity levels and experiment with your dehumidifier for a level that’s best for you.

Frost Sensor +

Frost sensors detect unwanted frost buildup on your dehumidifier’s inner coils and automatically turn off the appliance when required. This feature is especially important in colder climates, where frost is more likely to build up and cause damage to the dehumidifier. More advanced dehumidifiers have a de-icer function to eliminate frost before it becomes a problem.

Hose Connection +

Bypass your dehumidifier’s water tank altogether with a hose connection. A draining hose lets you connect your humidifier to a nearby drain, allowing the water to flow directly into the drain, rather than into the device's storage tank. That way, your dehumidifier can run continuously and you don’t have to monitor and manually empty the tank.

Washable Air Filter +

The air filter in your dehumidifier helps clean the air as it removes excess moisture. If you or someone in your family has breathing issues, your dehumidifier's air filter can eliminate harmful bacteria and irritants for a more comfortable living environment. A washable filter is more convenient as it does away with the need to buy replacement filters. Instead, just give the air filter a quick clean as necessary.

Portability +

Portable dehumidifiers can be taken to where they're needed most. While many small-capacity dehumidifiers can be easily carried around, larger models often come with handles, castors, or wheels so they can be transported and repositioned around your home without undue strain. Consider a portable model if you often move your dehumidifier from room to room, especially if you must carry it up and down flights of stairs.

Speed Control +

Stay in control of moisture levels and noise with speed control. Turn up the power to dry out a room after a flood or quickly recondition a room with that has excessive moisture in the air. Once a room is at the right humidity level, you can turn down the power to a maintenance level. This will also reduce energy consumption, saving you money on your electrical bill.

Energy Efficiency +

Energy efficient dehumidifiers will keep you cool and breathing easy while saving you money at the same time. Look for special certification that indicates how much power your dehumidifier requires to operate at full speed. Whether you’re using a small model for humidity control or a large one for water damage, you can cut your energy bill with a more efficient machine.

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Best Places for a Dehumidifier:

• A dehumidifier in your basement can protect your belongings from mold and mildew damage
• A dehumidifier in your bathroom can prevent shower steam from seeping into other parts of your home
• A dehumidifier in the laundry room can trap moisture coming from your washing machine and help clothes air dry faster
• Indoor pool rooms need dehumidifiers to stave off mold and remove harmful pool chemicals from the air
• Crawl spaces are often filled with items we only need seasonally, so they can be left unchecked for months and years. A dehumidifier can keep these items safe from water damage
• A dehumidifier in your bedroom can help alleviate nighttime allergy symptoms, so you get a good night’s sleep
• Kitchens often need dehumidifiers, especially if they have a dishwasher or other appliances that frequently use steam or hot water
This article is intended as general information. Always be sure to read and follow the label(s)/instruction(s) that accompany your product(s). Walmart will not be responsible for any injury or damage caused by this activity.



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