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Bathroom Dehumidifiers

Compact dehumidifiers for bathrooms, laundry rooms, and moisture-prone residential spaces. Sized for confined areas, they remove humidity at the source before mold establishes on grout, tile, and drywall. Models with auto-shutoff, built-in humidistat, and continuous drain hose options for set-and-forget operation. Used in occupied residential spaces and light commercial facilities where moisture accumulates from daily use.

Original price $1,291.00 - Original price $1,291.00
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Namco P646-95 95-Pint Crawl Space Dehumidifier – Auto Pump, R-410A, 1,300 sq ft

Namco Manufacturing
In stock

Namco P646-95 95-Pint Crawl Space Dehumidifier – 1,300 sq ft, Auto Pump-Out The Namco P646-95 removes up to 95 pints of moisture per day at 728 wat...

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Namco P646 110-Pint Commercial Dehumidifier – Auto Pump, Digital, 50-ft Drain Hose

Namco Manufacturing
In stock

Namco P646 110-Pint Portable Commercial Dehumidifier with 50-Foot Drain Hose The Namco P646 removes up to 110 pints of moisture per day with an aut...

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Namco P646-150 150-Pint Crawl Space Dehumidifier – Auto Pump, R-410A, 2,600 sq ft

Namco Manufacturing
In stock

Namco P646-150 150-Pint Crawl Space Dehumidifier – 2,600 sq ft Coverage with Auto Pump The Namco P646-150 removes up to 150 pints of moisture per d...

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Namco P646-190 190-Pint Crawl Space Dehumidifier – Auto Pump, R-410A, 3,300 sq ft

Namco Manufacturing
In stock

Namco P646-190 190-Pint Crawl Space Dehumidifier – Auto Pump-Out, 3,300 sq ft Coverage The Namco P646-190 removes up to 190 pints of moisture per d...

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Original price $1,868.40 - Original price $1,868.40
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Namco P649 330-Pint Commercial Dehumidifier – Auto Pump, Digital Controls, R-410A

Namco Manufacturing
In stock

Namco P649 330-Pint Commercial Dehumidifier with Auto Pump-Out The Namco P649 removes up to 330 pints of moisture per day using R-410A refrigerant ...

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Bathroom Dehumidifiers for Persistent Moisture and Mold Prevention

Why Bathrooms Need a Dedicated Dehumidifier

Bathrooms accumulate moisture faster than any other room in a home — a 10-minute hot shower releases roughly half a gallon of water vapor into the air, and a typical exhaust fan only removes part of it during the run cycle. The leftover humidity settles into drywall, paint, and grout lines where it feeds mold growth on caulk seams, fogs mirrors, peels paint behind shower walls, and triggers respiratory issues for occupants with mold sensitivity. A bathroom dehumidifier targets the relative humidity that sits in the room between showers, holding it below the 60% RH threshold where mold begins to grow.

Selecting a Bathroom Dehumidifier With Built-In Pump for Continuous Operation

The most common bathroom dehumidifier challenge is condensate handling. Bathrooms rarely have a floor drain at the right height for gravity drainage, and a small bathroom rarely has space to swap out a tank every shift. Built-in pumps solve both problems by lifting condensate up to a sink, tub, or window through a 16–18 ft discharge hose without operator intervention. The dehumidifiers in this collection include integrated pumps for unattended operation in bathrooms, master suites, and basement powder rooms where draining options are limited. Auto-restart after power interruption is standard, which matters during overnight operation in unattended spaces.

Related: All Dehumidifiers · Dehumidifiers with Pump · Crawl Space Dehumidifiers · Dehumidifiers with Drain Hose

Sizing a Dehumidifier for Bathroom and Adjacent Spaces

Bathroom dehumidifiers are sized smaller than basement or whole-house units because the target zone is tight — a typical residential bathroom is 50–100 sq ft and the moisture load is bounded by shower frequency rather than continuous evaporation. For a single bathroom, a small to mid-capacity unit is appropriate. For adjacent zones (master bath plus walk-in closet, basement bathroom plus storage room, hotel suite bathroom plus sleeping area), step up to a higher PPD model that can serve both spaces. Verify the unit's drain configuration matches the available drainage — a built-in pump is the safest choice when no floor drain exists at unit-level. Operating noise matters in bathrooms because they sit adjacent to bedrooms; the units in this collection are rated for residential noise levels suitable for occupied homes.

Frequently Asked Questions

What size dehumidifier do I need for my space?
The size depends on your room's square footage and moisture level. For areas up to 1,500 sq ft with moderate humidity, a 70-pint unit works well. Larger commercial spaces or severe moisture problems require 130-300+ pint industrial dehumidifiers. Consider factors like ceiling height, ventilation, and the source of moisture when selecting.
What's the difference between LGR and conventional dehumidifiers?
LGR (Low Grain Refrigerant) dehumidifiers use a dual cooling system to extract more moisture at lower humidity levels, making them ideal for water damage restoration. They can achieve humidity levels below 40% RH, while conventional units struggle below 50% RH. LGR units are more energy-efficient and remove 2-3x more water in challenging conditions.
How do I maintain my commercial dehumidifier?
Regular maintenance includes: cleaning or replacing air filters every 2-4 weeks, checking and cleaning the condensate pump and drain lines monthly, inspecting coils for frost buildup, and ensuring proper airflow around the unit. Annual professional servicing is recommended for commercial units to maintain peak efficiency.
Can dehumidifiers run continuously?
Yes, commercial and industrial dehumidifiers are designed for continuous operation. Most feature auto-defrost, automatic shutoff when the collection tank is full (or continuous drainage options), and humidistats that cycle the unit to maintain target humidity levels. Quality commercial units can run 24/7 for weeks during restoration projects.
What warranty coverage comes with your dehumidifiers?
Warranty coverage varies by manufacturer but typically includes 1-5 years on parts and labor for commercial units. Premium brands like Ebac and Dri-Eaz offer extended warranties. As an authorized dealer, we honor all manufacturer warranties and provide technical support. Extended warranty options are available at checkout.

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