Glowells 21-Pint Dehumidifier for 1600 sq ft — Quiet, Portable with Continuous Drain & 3 Modes

Glowells 21-pint dehumidifier removes excess moisture from areas up to 1600 sq. ft., offering three operating modes, quiet operation, and optional continuous drainage for hands-free use.

Designed for living rooms, bedrooms, bathrooms, basements, RVs and other damp spaces, this compact unit extracts up to 21 pints per day (tested at 95°F/90% RH) and covers up to 1600 square feet. Its smart compressor and selectable modes let you target humidity precisely, while caster wheels and a side handle make moving the unit between rooms effortless. The included drain hose enables continuous operation without frequent tank emptying.

How does the dehumidifier control humidity precisely?

Choose from three modes to match conditions: a Custom DEHU mode for exact setpoints, a Dry mode for fast laundry drying, and a CONT (continuous) mode for nonstop moisture removal. The Custom setting adjusts humidity in 5% increments from 30% to 80%, so you can hold indoor humidity within recommended comfort ranges.

• Custom DEHU mode: set humidity in 5% steps between 30%–80%
• Dry mode: optimized airflow and runtime for drying clothes and linens
• CONT mode: continuous drainage for persistently damp spaces
• Auto shutoff and full-tank alert for safe, automated operation

What drainage options are available to avoid emptying the tank constantly?

The Glowells unit supports two practical drainage methods. Use the removable water tank for manual emptying; the appliance stops automatically and alerts you when the tank is full. For uninterrupted operation, hook up the supplied drain hose and run it downward to a floor drain or sump for automatic continuous drainage.

• Included drain hose supports 24/7 continuous drainage
• Manual tank removal with auto-shutoff and audible/visual full-tank alert
• Simple hose setup: keep hose angled downward to prevent backflow
• Suitable for basements and other low-lying areas needing constant moisture control

Is the unit quiet and easy to move between rooms?

Yes — Glowells engineered the dehumidifier to operate below 36 dB, quieter than a library whisper, so it won’t disturb sleep or focused work. It’s compact and lightweight, fitted with four 360° swivel casters and an ergonomic side handle to roll smoothly across floors and reposition as needed.

• Operating noise under 36 dB for quiet performance
• Four smooth 360° caster wheels for full mobility
• Ergonomic side handle for easy lifting and carrying
• Compact footprint fits small closets, bathrooms, and RV interiors

What maintenance and support does Glowells provide?

Maintenance is minimal: empty and rinse the water tank as needed, clean the air intake and filter per the manual, and ensure the drain hose stays angled downhill. Glowells includes practical usage tips and backs the product with a 30-day refund policy plus a 1-year manufacturer warranty, plus customer support if questions arise.

• Routine: rinse tank and clean filter periodically for best performance
• Pro tip: keep windows/doors closed while running the unit
• Support: 30-day refund window and 1-year warranty included
• Customer help available for installation and troubleshooting

Who is this for? Homeowners and renters with damp basements, bathrooms or living areas, small-house or condo dwellers, RV and boat owners, and anyone needing a portable, quiet dehumidifier for spaces up to 1600 sq. ft. If you want flexible humidity control, a continuous drain option for hands-free operation, and a lightweight unit that won’t disturb daily life, this Glowells model is designed to meet those needs.