Dehumidifier Buying Guide

Quick Summary

1. Capacity Matters: Choose a dehumidifier with the right capacity (measured in pints per day) based on your room size and humidity level.
2. Energy Efficiency: Look for Energy Star-rated models to save on electricity bills while keeping your space comfortable.
3. Features Count: Additional features like automatic shut-off, continuous drainage, and built-in hygrometers make life easier.

Key Factors to Consider

Room Size

This is where most people mess up. Dehumidifiers come with different capacities measured in pints per day (PPD) – that’s how much moisture they can pull out in 24 hours. A small 30 PPD unit works for spaces up to 1,500 square feet, while a 70 PPD model can tackle up to 4,500 square feet. Measure your room and check the manufacturer’s recommendations. Trust me, undersizing is a recipe for disappointment.

Humidity Levels

Grab a hygrometer and measure your home’s humidity. If it’s consistently above 60%, you need a dehumidifier. You can also learn about the importance of air quality in our post on How To Improve Indoor Air Quality. For basement dwellers dealing with that musty smell, you’ll want a higher-capacity model to handle the extra moisture.

Drainage Options

You’ve got three choices: manual, gravity, or continuous drainage. Manual means you’re emptying that bucket regularly (annoying). Gravity drainage lets water flow through a hose to a nearby drain. Continuous drainage is the gold standard – set it and forget it.

Energy Efficiency

Energy Star-rated models meet EPA guidelines and won’t murder your electric bill. For more on energy efficiency, check out our article on How To Choose An Air Purifier. Since these things run constantly, the energy savings add up fast. Skip the cheap, power-hungry units unless you enjoy throwing money at your utility company.

Noise Level

Some dehumidifiers sound like jet engines. Noise levels range from 30-50 dB for the quieter models. If you’re putting this in a bedroom, read customer reviews carefully – manufacturer specs can be optimistic about noise levels.

Maintenance Requirements

All dehumidifiers need regular cleaning and filter changes. Some have washable filters or maintenance alerts, which you can also find in our guide on How To Clean A Humidifier. Factor this into your decision – a unit that’s a pain to maintain will end up neglected and ineffective.

Additional Features

Built-in hygrometers, programmable timers, and auto-restart functions are nice touches that actually make a difference in daily use. Don’t pay extra for gimmicky features, but these basics are worth having.

Types/Categories of Dehumidifiers

Refrigerant Dehumidifiers

The workhorses of the dehumidifier world. They use a cooling coil to condense moisture and handle large areas well. They’re noisier and use more energy, but they get the job done in most situations.

Desiccant Dehumidifiers

These use absorbent material instead of cooling coils, making them quieter and better in cold spaces. They’re usually smaller but less efficient for big areas. Good for bedrooms or small apartments.

Thermoelectric Dehumidifiers

Tiny, energy-efficient, and perfect for closets or small bathrooms. Don’t expect miracles – their capacity is limited, but they’re practically silent.

Whole-House Dehumidifiers

The luxury option that integrates with your HVAC system. Expensive upfront and needs professional installation, but they maintain consistent humidity throughout your entire home.

Price Ranges

Budget models work for small spaces, but I’d recommend spending a bit more for mid-range options. The energy savings and convenience features usually pay for themselves.

Common Mistakes to Avoid

1. Choosing the Wrong Capacity: Undersized units run constantly and never quite get there. Measure your space and buy accordingly.
2. Ignoring Maintenance: Dirty filters kill efficiency. Clean them regularly or buy washable ones.
3. Skipping Energy Efficiency: These things run 24/7. A few extra bucks for Energy Star certification saves money long-term, similar to the benefits discussed in Are Air Purifiers Worth It.
4. Bad Placement: Corners and tight spaces kill airflow. Give your unit room to breathe.
5. Not Checking Noise Levels: Don’t trust manufacturer specs alone. Read real customer reviews about noise.

Our Top Recommendations

1. hOmeLabs 70 Pint Dehumidifier

   • Capacity: 70 PPD
   • Room Size: Up to 4,500 sq. ft.
   • Price: ~$249.99
   • Features: Energy Star rating, continuous drainage option, built-in hygrometer.
   • Detailed Review

2. Frigidaire 30 Pint Dehumidifier

   • Capacity: 30 PPD
   • Room Size: Up to 1,500 sq. ft.
   • Price: ~$139.99
   • Features: Easy-to-clean washable filter, continuous drainage, compact design.
   • Detailed Review

3. Vremi 70 Pint Dehumidifier

   • Capacity: 70 PPD
   • Room Size: Up to 4,500 sq. ft.
   • Price: ~$229.99
   • Features: Energy Star rated, large water tank, auto shut-off feature.
   • Detailed Review

4. MIDEA 50 Pint Dehumidifier

   • Capacity: 50 PPD
   • Room Size: Up to 3,000 sq. ft.
   • Price: ~$199.99
   • Features: Energy efficient, quiet operation, adjustable humidity settings.
   • Detailed Review

FAQ

How do I determine the right size dehumidifier for my space?

Measure your room’s square footage and check current humidity levels. Use manufacturer capacity charts to match your needs. Don’t guess – you’ll likely undersize.

How often should I empty my dehumidifier’s water tank?

Depends on humidity levels and tank size. In high humidity, you might need daily emptying. Get continuous drainage if you don’t want the hassle.

Can a dehumidifier help with allergies?

Absolutely. Lower humidity means less mold, fewer dust mites, and cleaner air overall. Not a miracle cure, but it definitely helps.

How energy-efficient are dehumidifiers?

Varies wildly by model. Energy Star units are your best bet for keeping electric bills reasonable. Cheap units often cost more to run than they’re worth.

What maintenance is required for a dehumidifier?

Clean or replace filters regularly, empty tanks (if not using continuous drainage), and check for clogs. Basic stuff, but skip it and your unit will struggle.

The right dehumidifier can transform a muggy, uncomfortable space into something livable. Just match the capacity to your room size, don’t cheap out on energy efficiency, and you’ll be happy with your purchase.