Dehumidifier for Laundry Room

The Guide to Using a Dehumidifier for Laundry Room


Doing laundry is already a chore, but when you factor in the excess moisture and musty smells that often plague laundry rooms, it can feel like an uphill battle. Imagine a fresh, dry space where you can wash and dry clothes without worrying about mold, mildew, or that damp basement smell. The secret weapon? A dehumidifier!

But like any tool, using a dehumidifier for laundry room effectively requires some know-how. This guide will walk you through everything from choosing the right size to optimal placement and maintenance.

Why Dehumidify Your Laundry Room?

Laundry rooms are moisture magnets. Think about it: washing machines release gallons of steamy water vapor, while damp clothes tumbling in the dryer add even more humidity. With a lack of ventilation trapping all that moisture inside, it's a recipe for disaster.

Left unchecked, this excess humidity creates the perfect breeding ground for musty odors that cling to clothes and surfaces, unsightly mold and mildew growth, and even potential structural damage from prolonged dampness. Mold can also trigger allergies and respiratory issues, making a dehumidifier a smart health investment.

The ideal indoor humidity range is 30-50% relative humidity (RH). Anything above 60% RH is asking for trouble like peeling paint, warped wood floors, and potential health issues from mold exposure. A dehumidifier helps maintain those healthy levels, preventing moisture issues before they start.

Choosing the Right Size Dehumidifier

Sizing a dehumidifier is kind of like picking out a new pair of shoes - get it wrong, and you're in for some serious discomfort. Too small, and it can't keep up with your laundry room's moisture load. Too large, and you're wasting energy (and money).

As a general rule, 30 to 50-pint models work well for most laundry rooms up to 1,500 square feet. If your space is larger, or you have other major moisture sources like a basement or garage, you may need a larger 70+ pint capacity unit.

Don't forget to factor in other variables that affect sizing like climate and temperature. Humid, warm conditions create more moisture load than dry, cool environments. A dehumidifier in Miami will need to work harder than one in Denver. ENERGY STAR-certified models are also a smart choice to keep operating costs down over time.

Optimal Dehumidifier Placement and Setup  

Where you put your dehumidifier makes a big difference in how effectively it can do its job. Follow these tips for ideal positioning:

1. Place the unit near your washer and dryer, aiming the airflow towards the main moisture sources.

2. Close any windows, doors, or vents to create an enclosed space for maximum efficiency.

3. If your model has special settings like "laundry mode" or "high moisture," use those to crank up the dehumidification power when needed.


For spot ventilation during and immediately after running laundry loads, use an exhaust fan to rapidly expel humid air bursts. The dehumidifier can then remove any lingering moisture. This dynamic duo approach allows you to quickly clear out humid air and then maintain ideal dryness.

Finally, set up a gravity drain line or install a condensate pump for hands-free water removal from the dehumidifier tank. This prevents overflows and frequent manual emptying. Start with a humidity setting around 45-50% RH and adjust as needed for your comfort level.

Getting the setup right allows your dehumidifier to work smarter, not harder at removing moisture from the air.

Operating Tips for Peak Performance

Even with perfect placement, a few simple operating habits can maximize your dehumidifier's performance:

1. Run the unit continuously for consistent humidity control, not just when you're doing laundry

2. Empty the water tank regularly before it gets full to prevent overflow and allow uninterrupted operation 

3. Clean the air filter every few weeks by rinsing it with water to maintain maximum airflow

4. Use fans or open interior doors to improve air circulation and speed up drying times

5. Insulate and seal the room well with caulk or weatherstripping to prevent outside moisture intrusion

You'll also want to estimate operating costs, which can range from $0.25-$0.60 per laundry load depending on dehumidifier size and your electricity rates. Running the unit only as needed can help reduce energy usage. Using the built-in humidistat is better than running 24/7.

A little preventative care goes a long way in keeping your dehumidifier running smoothly and efficiently for years to come. It's like changing your car's oil - some upfront effort saves you from costly breakdowns.

Maintenance and Cleaning  

Speaking of preventative care, regular maintenance is a must for any hardworking dehumidifier. Neglecting basic upkeep leads to reduced efficiency, funky odors, and potential breakdowns - not ideal for your trusty moisture-fighter!

At least once a month, clean the air filter by rinsing it with water to remove built-up dust and lint. This allows air to flow freely through the unit for maximum moisture removal. You'll also want to disinfect the water tank and coils periodically with a bleach solution to prevent bacteria growth and odors.

Check for any obstructions like furniture blocking the air intake and exhaust areas. Even a few inches of clearance can impact performance. Finally, replace the filter annually or as recommended by the manufacturer for optimal airflow.

If you won't be using the drying room dehumidifier during winter months, store it properly by cleaning it first and covering the unit to protect it from dust. An ounce of prevention really does go a long way!

Take Back Your Laundry Room

There's no need to resign yourself to a damp, musty laundry room. With the right dehumidifier sized for your space and set up for optimal performance, you can enjoy fresh, dry air every time you tackle the wash. Although there is no “dehumidifier laundry setting,” using it as recommended will help lower your operating costs while preventing mold from taking over your space.

Do you have persistent moisture problems? AlorAir Crawlspace offers powerful crawlspace dehumidifiers and other solutions to keep dampness at bay throughout your home. Reach out today for a free consultation on controlling humidity issues and breathing easier.