World Clean BizGlobal Cleaning Industry Intelligence

Independent Technical Reference

Dehumidifier

Dehumidifier extraction ratings, drainage and buyer checks

This profile separates moisture-removal rating and test condition, refrigeration or adsorption process, room-area convention, temperature range, bucket and drainage modes, filtration, defrost, controls and service parts so buyers can compare exact portable dehumidifiers without treating pint or litre labels as universal capacity.

Included
  • Portable household refrigerated dehumidifiers
  • Portable adsorption dehumidifiers when the process and rating method are documented
Excluded
  • Room air conditioners and portable air conditioners
  • Whole-building dehumidification and industrial process dryers
  • Humidifiers, air purifiers without moisture removal and unverified cross-model parts

First published 2026-08-09 · Last verified 2026-08-09

This independent category reference is not indoor-air-quality, mold-remediation, refrigerant-service, electrical or drainage advice. Correct active leaks and confirm the exact regional model, manual, rating condition, room temperature, supply, clearance, bucket, hose, pump and service-part numbers before procurement or use.

Official equipment reference
Midea Cube dehumidifier standing in a furnished room
Official Midea room image showing the Cube dehumidifier in its extended form; room-area and extraction claims remain tied to the exact model and rating method. Official image source
Dehumidifier key facts
FactTechnical referenceScope boundary
Rating boundaryMoisture-removal capacity is meaningful only with the stated temperature, humidity and test methodExact model, jurisdiction and rating condition.
Buyer verificationMatch extraction, low-temperature operation, tank, gravity drain or pump, hose routing and service parts to the exact modelExact regional model and site.

WCB explanatory visual

Dehumidifier working system

An original system map synthesized from reviewed operator manuals. It explains functional flow, not a universal machine architecture.

  1. 01

    Air intake and sensing

    Filter, inlet grille, fan, humidity and temperature sensors and controller

    Draws room air through the appliance and determines when moisture removal should operate.

    EvidenceOfficial pages and manuals document washable filters, fan speeds, humidistats and control ranges.

    ScopeExact model and operating mode.

    Verified2026-08-09

    Sourcesmidea-cube, lg-ud501, hisense-dh7021, ge-adhl35

  2. 02

    Moisture removal

    Evaporator, condenser, compressor, expansion device, refrigerant and defrost control

    Cools process air below its dew point, condenses moisture and reheats discharged air in refrigerated models.

    EvidenceDOE defines the refrigerated surface, refrigerating system and air-circulating fan for covered consumer dehumidifiers.

    ScopeUS refrigerated consumer dehumidifier definition; adsorption variants require their own evidence.

    Verified2026-08-09

    Sourcesdoe-dehumidifiers, lg-ud501, hisense-dh7021

  3. 03

    Condensate handling

    Drip tray, bucket, float switch, gravity drain, pump where fitted and hose

    Collects water and stops, drains or pumps it according to the configured mode.

    EvidenceMidea, LG, Hisense, GE and Haier publish distinct bucket and drainage options.

    ScopeExact hose, lift, routing and installation instructions.

    Verified2026-08-09

    Sourcesmidea-cube, lg-ud501, hisense-dh7021, ge-adhl35, haier-qdhr50

Equipment taxonomy

Main dehumidifier formats

These formats describe operator relationship and task scale. None is a universal winner.

Person emptying the large removable bucket from a Midea Cube dehumidifier
Official field reference

Official Midea image illustrating removable-bucket handling; water mass, lift height and safe emptying frequency remain exact-model and site checks.

Buyer focusUse the format as a starting point, then compare the operating envelope, utilities, duty cycle, operator workflow, accessory system and the exact configured machine.

Official image source

Bucket and gravity-drain dehumidifier

Task scale
Portable room or basement humidity management
Operator
User empties the bucket or routes a continuously falling hose to an approved drain
Space
Air clearance, level floor, hose fall and service access
Limit
Continuous drain requires correct gravity routing and does not prove a built-in pump.

EvidenceMidea and Hisense publish bucket and garden-hose drainage arrangements.

ScopeNamed US models.

Verified2026-08-09

Sourcesmidea-cube, hisense-dh7021

Built-in pump dehumidifier

Task scale
Sites where condensate must be lifted within the source-stated limit
Operator
User connects the approved pump hose and maintains the bucket and filter
Space
Pump head, hose route, power, overflow protection and discharge point
Limit
Pump presence and lift capability are model-specific and do not replace leak control.

EvidenceLG UD501KOJ5 and selected Midea models publish built-in pump functions.

ScopeExact pump-equipped variants.

Verified2026-08-09

Sourceslg-ud501, midea-cube

Specification dictionary

What the performance metrics do—and do not—mean

Dehumidifier performance metric dictionary
MetricPurchasing meaningReporting boundaryComparison caution
Moisture-removal capacityWater condensed per day under a defined air temperature and relative humidityUS pints/day and regional litres/day may use different test conditionsDo not rank nominal 50-pint, 16 L/day or 30 L/day labels without their conditions.
Integrated energy factorSource-declared litres of water removed per kilowatt-hour under the applicable testCapacity class, test condition and regulation version matterEnergy certification does not establish site extraction or room coverage.
Room area and low-temperature operationManufacturer guidance for application scale and minimum operating conditionsMoisture load, air exchange, temperature, drainage and duty cycle are not standardized by a room-area headlineSquare-foot coverage is not a substitute for moisture-load calculation or witnessed performance.
Moisture-removal capacity evidence

EvidenceDOE defines the US test procedure; LG records the 65°F method change; Sharp states 30 L/day at 30°C and 80% RH.

ScopeNamed test condition and exact model.

Verified2026-08-09

Sourcesdoe-dehumidifiers, lg-ud501, sharp-dwt30

Integrated energy factor evidence

EvidenceDOE regulates IEF under Appendix X1 and ENERGY STAR identifies qualified dehumidifiers.

ScopeUS covered products and current certification record.

Verified2026-08-09

Sourcesdoe-dehumidifiers, energy-star-dehumidifiers, lg-ud501

Room area and low-temperature operation evidence

EvidenceManufacturers publish model-specific area and low-temperature statements; LG specifies 41°F low-temperature operation for UD501KOG5.

ScopeSource-declared conditions only.

Verified2026-08-09

Sourcesmidea-cube, lg-ud501, ge-adhl35, haier-qdhr50

Evidence + WCB interpretation

Application-fit matrix

Official application evidence does not establish automatic suitability. Each row shows what still needs to be tested.

Midea Cube dehumidifier positioned beside a sink with a drain hose attached
Official field reference

Official Midea image illustrating one drainage arrangement; gravity fall, hose path and pump availability must be confirmed in the exact manual.

Buyer focusTreat the photographed setting as context only. Validate utilities, surface compatibility, operating space, operator controls, environmental conditions and the planned work process on site.

Official image source

Damp room or basement humidity management

EvidenceDOE and ENERGY STAR distinguish appliance ratings from site selection guidance.

ScopePortable indoor use within manual limits.

Verified2026-08-09

Sourcesdoe-dehumidifiers, energy-star-dehumidifiers, midea-cube, hisense-dh7021

WCB assessment

Correct active water entry first, then log room temperature, RH and collected water during a witnessed trial.

Basis
Envelope moisture, infiltration, temperature, air mixing and appliance duty interact.
Limitations
A room-area or pint label does not prove mold remediation or whole-site control.
Buyer action
Record 24-hour temperature/RH, bucket mass or drain volume, runtime and power before scaling.

Continuous unattended drainage

EvidenceOfficial manuals describe distinct gravity and pump arrangements.

ScopeExact model and installed hose configuration.

Verified2026-08-09

Sourcesmidea-cube, lg-ud501, hisense-dh7021, haier-qdhr50

WCB assessment

Witness bucket-full shutdown, gravity flow or pump operation and verify the discharge path cannot backflow or leak.

Basis
Float, pump, hose elevation and drain routing determine water handling.
Limitations
Continuous mode does not remove the need for inspection or leak correction.
Buyer action
Attach hose size, fall or lift, discharge point and overflow response to the site record.

System component map

Component families and compatibility boundaries

Component families are labels only. No component link or cross-model compatibility is claimed.

WCB portable dehumidifier component verification map
WCB technical diagram

WCB diagram connecting airflow, refrigeration, condensate, drainage, sensing and control checks; it does not establish part compatibility.

Buyer focusBefore substitution or service work, match the current manual, model and serial range, part number, physical interface, approved material or chemistry, and electrical configuration.

Evidence sourcesdoe-dehumidifiers, energy-star-dehumidifiers, midea-cube, lg-ud501, hisense-dh7021, ge-adhl35, haier-qdhr50, sharp-dwt30

Air, filter and sensor system

Moves room air and controls operation against measured humidity and temperature.

Common variants
  • Washable prefilter
  • Two or three fan speeds
  • Model-specific humidistat and temperature sensor
Critical checks
  • Filter code and cleaning interval
  • Sensor location and tolerance
  • Air clearance and fan part number

EvidenceOfficial product pages publish different filter, fan and control configurations.

ScopeExact model and serial family; no cross-model fit.

Verified2026-08-09

Sourcesmidea-cube, lg-ud501, hisense-dh7021, ge-adhl35

Refrigeration and defrost system

Condenses atmospheric moisture and restores heat to the discharge air.

Common variants
  • Fixed-speed or model-described compressor
  • Model-specific refrigerant
  • Automatic defrost control
Critical checks
  • Refrigerant and charge label
  • Compressor, capacitor and control code
  • Minimum temperature and defrost behavior

EvidenceDOE defines the covered refrigeration assembly; LG publishes compressor, refrigerant and automatic defrost data.

ScopeExact label and qualified refrigerant service.

Verified2026-08-09

Sourcesdoe-dehumidifiers, lg-ud501, hisense-dh7021

Bucket, float and drainage system

Collects condensate and prevents or routes overflow.

Common variants
  • Removable bucket
  • Gravity garden-hose drain
  • Built-in condensate pump
Critical checks
  • Bucket and float-switch codes
  • Hose diameter, fall or pump head
  • Auto-stop and restart response

EvidenceManufacturers publish model-specific bucket, gravity and pump features.

ScopeExact model and installed route.

Verified2026-08-09

Sourcesmidea-cube, lg-ud501, hisense-dh7021, ge-adhl35, haier-qdhr50

Verified relationships

Related brands and representative models

Representative, not exhaustive. A link means the official source connects the named brand and model; it does not establish a factory, OEM or component-supplier relationship.

6 verified models
Representative dehumidifier models
BrandModelSubtypeOfficial specification referenceMarket scopeVerifiedSource
MideaMAD50PS1QGR50-pint Cube dehumidifier with pump
  • 50 pint source-stated capacity
  • Extended or nested Cube format
  • Built-in pump and hose options
Midea US2026-08-09midea-cube
LG Home AppliancesUD501KOJ550-pint smart dehumidifier with pump
  • 50 pint/day source-stated rating
  • Built-in drain pump
  • Wi-Fi control
LG US2026-08-09lg-ud501
HisenseDH7021K1W50-pint portable dehumidifier
  • 50 pint source-stated rating
  • Three fan speeds
  • Bucket or garden-hose drainage
Hisense USA2026-08-09hisense-dh7021
GE AppliancesADHL35LA35-pint portable dehumidifier
  • 35 pint source-stated rating
  • Smart Dry control
  • Portable cabinet
GE Appliances US2026-08-09ge-adhl35
Haier Home AppliancesQDHR50LZ50-pint portable dehumidifier
  • 50 pint source-stated rating
  • Smart Dry control
  • Portable bucket and drain configuration
Haier Appliances US2026-08-09haier-qdhr50
Sharp AppliancesDW-T30FA-W30 L/day dehumidifier with air treatment
  • 30 L/day at 30°C and 80% RH
  • Model-specific air-purifying functions
  • Regional energy-label record
Sharp Hong Kong2026-08-09sharp-dwt30

WCB decision support

Procurement decision matrix

No composite score or brand ranking. Each row identifies a comparison trap and the next verification action.

WCB assessment

Maintain a target indoor relative humidity

Verify
Site moisture load, extraction under actual conditions, runtime and drainage
Comparison trap
Ranking by pints/day, litres/day or square feet without test conditions
Assessment
Use a logged site trial and measured condensate.
Basis
Extraction falls or changes with temperature, RH, airflow and duty cycle.
Limitations
No catalogue rating proves building-wide control or mold remediation.
Buyer action
Compare like-for-like results at recorded temperature and RH.

EvidenceDOE, LG and Sharp expose materially different rating boundaries.

ScopeExact model and site condition.

Verified2026-08-09

Sourcesdoe-dehumidifiers, lg-ud501, sharp-dwt30

WCB assessment

Control unattended drainage and lifecycle cost

Verify
Bucket, float, hose, pump, filter, sensor and refrigeration support
Comparison trap
Assuming all continuous-drain models pump water uphill or share parts
Assessment
Price the exact drainage configuration and five-year service parts.
Basis
Gravity and pump systems, hose limits and assemblies differ.
Limitations
Future part availability and site drainage reliability are not guaranteed.
Buyer action
Obtain exact hose, pump, bucket, float, filter and sensor codes in writing.

EvidenceOfficial model sources publish distinct water-handling systems.

ScopeMarket and serial family.

Verified2026-08-09

Sourcesmidea-cube, lg-ud501, hisense-dh7021, ge-adhl35, haier-qdhr50

Engineering validation

Checks before parts, configuration or service decisions

This checklist narrows verification work; it is not a compatibility guarantee or repair manual.

01

Moisture source and operating envelope

An undersized portable appliance cannot correct active leaks, unsuitable temperature or uncontrolled air exchange.

Required actionDocument water entry, room volume, temperature/RH trend and required duty before sizing.

EvidenceDOE defines portable product performance while manufacturer limits remain model-specific.

ScopeActual room and exact model.

Verified2026-08-09

Sourcesdoe-dehumidifiers, energy-star-dehumidifiers, lg-ud501

02

Electrical, refrigerant and drainage safety

The appliance combines mains power, condensate water and a sealed refrigerant circuit.

Required actionUse a compliant outlet, level placement, approved hose route and qualified sealed-system service.

EvidenceOfficial manuals and DOE product definition identify these systems.

ScopeExact regional product and local rules.

Verified2026-08-09

Sourcesdoe-dehumidifiers, midea-cube, hisense-dh7021

Standards boundary

Safety and performance references

10 CFR Part 430, Subpart B, Appendix X1

JurisdictionUnited States

VersionCurrent DOE procedure at verification

ApplicabilityUS test procedure for consumer dehumidifier capacity and integrated energy factor.

EvidenceDOE directs manufacturers to Appendix X1 for current compliance testing.

ScopeUS covered consumer dehumidifiers; confirm effective dates and product class.

Verified2026-08-09

Sourcesdoe-dehumidifiers

ENERGY STAR Dehumidifiers Program Requirements

JurisdictionUnited States

VersionCurrent program at verification

ApplicabilityCertification and product-selection framework for eligible dehumidifiers.

EvidenceEPA publishes the dehumidifier program and Product Finder.

ScopeVerify the exact model in the current certified-products record.

Verified2026-08-09

Sourcesenergy-star-dehumidifiers

Technical developments

Selected changes in dehumidifier systems

  1. US portable dehumidifier rating condition changed

    LG's official specification notes that the DOE pint-removal test condition changed from 80°F under the earlier procedure to 65°F under the later Appendix X1 basis.

    EvidenceLG's UD501KOG5 specification states both temperature bases and cites the DOE appendices.

    ScopeUS pint-removal labeling context; not a conversion formula between products.

    Verified2026-08-09

    Sourceslg-ud501, doe-dehumidifiers

Evidence record

Sources

First published 2026-08-09 · Last verified 2026-08-09 · Last material modification 2026-08-09

  1. regulator

    Consumer Dehumidifiers: Definitions, Standards and Appendix X1 Test Procedure

    U.S. Department of Energy

    Open official source

    Accessed 2026-08-09

  2. regulator

    Dehumidifiers

    U.S. Environmental Protection Agency ENERGY STAR

    Open official source

    Accessed 2026-08-09

  3. manufacturer

    MAD50PS1QGR 50 Pint Smart Cube Dehumidifier with Built-In Pump

    Midea US

    Open official source

    Accessed 2026-08-09

  4. manufacturer

    UD501KOG5 PuriCare 50 Pint Dehumidifier Specification Sheet

    LG Electronics USA

    Open official source

    Accessed 2026-08-09

  5. manufacturer

    DH7021K1W Energy Star 50 Pint Dehumidifier

    Hisense USA

    Open official source

    Accessed 2026-08-09

  6. manufacturer

    ADHL35LA 35 Pint Portable Dehumidifier Owner Center

    GE Appliances

    Open official source

    Accessed 2026-08-09

  7. manufacturer

    QDHR50LZ Energy Star 50 Pint Portable Dehumidifier

    Haier Appliances

    Open official source

    Accessed 2026-08-09

  8. manufacturer

    DW-T30FA-W 3-in-1 Air Purifying Dehumidifier

    Sharp Home Appliances Hong Kong

    Open official source

    Accessed 2026-08-09