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DEH-i Series · Mobile industrial

DanVex DEH-i Series — mobile industrial dehumidifiers, 59–180 L/day

Four configurations from 59 to 180 L/day for construction, warehouses, food and pharmaceutical production, flood-damage restoration, drying rooms and industrial workshops. R-290 refrigerant, E-Coating, Hot Gas Defrost, a high-pressure centrifugal fan and Modbus RTU connectivity.

Capacity59–180L/day
Airflow500–2 000m³/h
Models4
RefrigerantR-290
ProtectionIP22

About the DEH-i Series

The DanVex DEH-i Series is a range of mobile industrial dehumidifiers for environments where the humidity problem changes location, scale or duration: construction projects, warehouses with seasonal loads, food and pharmaceutical production facilities, drying rooms, water-damage restoration and industrial workshops.

The four models cover capacities from 59 to 180 litres per day. All units run on R-290 refrigerant, use Hot Gas Defrost for continuous operation in cold conditions and carry an E-Coating heat exchanger resistant to salts, mild acids and the cleaning chemistry of industrial environments. Every model has a high-pressure centrifugal fan instead of the axial fans common on budget mobile units: higher static pressure, steadier airflow against loading filters and better performance at low temperature.

Three models — DEH-500i, DEH-900i and DEH-1200i — come in a wheeled-trolley format with a built-in 10-litre tank and a direct-drain option. The DEH-1900i is an industrial rolling cabinet for large halls and continuous duty: direct drain only, and its two duct ports allow dry air to be distributed to two adjacent zones. Modbus RTU RS-485 is standard across the range for BMS / SCADA integration; the DEH-1900i adds Wi-Fi for app control alongside Modbus.

Models in the range

DEH-500i  59 L/day · 500 m³/h · 39 kg · E-Coating · Hot Gas Defrost · R-290

Indicative coverage: rooms up to ~80 m² under typical industrial moisture loads

Small construction sites, single-room renovations, basements, small warehouses, drying after water leaks in residential and light-commercial spaces.

DEH-900i  90 L/day · 840 m³/h · 52 kg · E-Coating · Hot Gas Defrost · R-290

Indicative coverage: rooms of ~80–130 m²

Medium warehouses, renovation projects, food and material storage, light-production support, restoration after moderate flooding.

DEH-1200i  120 L/day · 1400 m³/h · 54 kg · E-Coating · Hot Gas Defrost · R-290

Indicative coverage: rooms of ~130–200 m²

Large warehouses, industrial workshops, timber drying and joinery, food-production support, major restoration projects.

DEH-1900i  180 L/day · 2000 m³/h · 69 kg · Wi-Fi + Modbus · two duct ports · E-Coating · Hot Gas Defrost · R-290

Indicative coverage: rooms of ~200–320 m², or two adjacent zones via duct distribution

Large industrial halls, food and pharmaceutical production, high-volume drying lines, major flood-recovery operations and applications needing remote monitoring or air distribution split between two zones.

Coverage figures are indicative for typical industrial conditions (moderate load, 2.5–3 m ceilings, ordinary air exchange). The actual choice depends on starting and target humidity, ceiling height, infiltration and process moisture sources. For heavy restoration, large volumes and tight schedules — calculate capacity per project or contact us for assistance. In some applications two smaller units distributed across the space dry faster and more evenly than one larger unit.

Which model should I choose?

The range covers four configurations on standard single-phase 220–230 V. Use the table to narrow by capacity, format and application — the full parameter set is in the specification table below.

Selection criterionDEH-500iDEH-900iDEH-1200iDEH-1900i
Dehumidification capacity59 L/day90 L/day120 L/day180 L/day
Technical airflow500 m³/h840 m³/h1400 m³/h2000 m³/h
Power consumption880 W1150 W1380 W1700 W
Condensate tank10 L10 L10 LDirect drain only
Duct connection———Two ports
ConnectivityModbus RTU RS-485Modbus RTU RS-485Modbus RTU RS-485Wi-Fi + Modbus RTU RS-485
FormatWheeled trolleyWheeled trolleyWheeled trolleyRolling cabinet

Where is the DEH-i Series used?

Mobile dehumidifiers are designed for tasks where the humidity problem is temporary or spread across several sites, or where installing fixed equipment is impractical:

Construction sitesWarehousesFood & pharma production Flood restorationDrying roomsWorkshops

Application guide

ApplicationWhy DEH-i is the right choiceRecommended model
Construction sites and renovationsDrying plaster, fresh concrete and coatings during construction work. Hot Gas Defrost keeps the unit running from +10 °C, so drying continues through unheated phases. The unit moves between rooms and floors as work progresses. The G4 filter holds construction and lime dust away from the heat exchanger; E-Coating protects against the chemical corrosion typical of sites — cement vapour, alkalis and salt spray.DEH-500i for single rooms · DEH-900i / DEH-1200i for larger sections
Warehouses and logisticsSeasonal humidity in unheated or semi-heated storage causes condensation on packaging, softening of cardboard, label damage and rusting of metal goods. A mobile unit is repositioned to the problem point instead of drying the whole building permanently. The high-pressure centrifugal fan moves more air through dusty filters than axial-fan portables — performance stays stable in dirty environments.DEH-1200i / DEH-1900i for large halls · DEH-900i for sectioned storage
Food and pharmaceutical productionMobile dehumidification during wash-down cycles, equipment failures, production peaks and seasonal events — without shutting down the permanent HVAC. E-Coating resists the organic acids, salt solutions and cleaning agents typical of food processing. The two duct ports of the DEH-1900i allow conditioned air to be delivered to a specific zone (a packing line, an ingredient store) without affecting the rest of the facility.DEH-900i / DEH-1200i · DEH-1900i for ducted delivery
Flood and water-damage restorationAfter leaks or flooding, walls, floors and contents must be dried within days to prevent mould. Plug the unit into a standard 220–230 V socket, connect the direct-drain hose to a floor drain or use the tank cycle, set the target humidity. Continuous unattended operation around the clock on direct drain, moving the unit as drying progresses zone by zone. For multi-room flooding, professional practice is several distributed units: drying is faster and more even than with one large unit.Typically DEH-500i / DEH-900i · several units for large areas
Drying rooms and timber dryingDrying wood, paper and sawn timber requires steadily low humidity for days and weeks. Technical airflow up to 2000 m³/h on the 1900i, continuous operation on direct drain to a fixed point and an on/off timer for shift work or off-peak electricity hours.DEH-1200i / DEH-1900i
Industrial workshopsPainting, packaging, electronics assembly — processes that elevated humidity disrupts. Mobile units let one machine cover several production lines without permanent ductwork. Modbus RTU RS-485 is standard across the range for integration with shop-floor monitoring; the 1900i adds Wi-Fi for direct supervision via the app.DEH-900i / DEH-1200i for the general workshop · DEH-1900i for halls and ducted zones

How does DEH-i compare with the market?

European mobile industrial dehumidifiers range from basic portable units with axial fans, fixed-speed compressors and passive defrost to mid-range professional units with selected features. The table positions the DEH-i Series against the typical specifications in those segments.

About this comparison: "mid-range" refers to the typical specification of professional mobile industrial dehumidifiers in the mid price segment on the European market; "entry-level" — to budget portable units. The comparison is indicative by feature category, not a claim about any specific manufacturer.
Feature / technologyDanVex DEH-iMid-rangeEntry-level
E-Coating heat exchanger✓ standard~ some models✗ not available
Hot Gas Defrost✓ standard~ some models✗ passive / electric (20–30 minutes)
High-pressure centrifugal fan✓ all models~ higher classes only✗ usually axial
Modbus RTU RS-485 (BMS integration)✓ all models~ some models✗ not available
Wi-Fi remote control✓ DEH-1900i~ selected models✗ not available
Scheduled on/off timer✓ standard✓ standard~ varies

Key technologies — at a glance

  • R-290 refrigerant — low global-warming potential (< 4) and high thermodynamic efficiency
  • E-Coating on the heat exchanger — resists construction dust, lime, salt vapour, mild acids and chlorine-laden cleaning agents typical of mobile industrial deployment
  • Hot Gas Defrost — fast defrost; continuous operation from +10 °C
  • Digital controller with built-in temperature and humidity sensors — standard on every model; LCD display, automatic operation to the humidity set-point, no external hygrometers for typical use
  • High-pressure centrifugal fan — higher static pressure than the axial fans common on budget portables; airflow stays effective with dirty filters and at low temperature
  • Direct drain + 10 L tank on the trolley models (500i / 900i / 1200i); the 1900i is direct drain only for continuous-duty installations
  • On/off timer — programmable scheduling for work shifts and off-peak electricity hours
  • Modbus RTU RS-485 — standard on every model for BMS / SCADA integration; the DEH-1900i adds Wi-Fi for app supervision
  • Two duct ports (DEH-1900i) — dry-air distribution to two adjacent zones; useful for divided production areas and multi-room restoration
  • Rugged mobile housing — a powder-coated metal cabinet, large rear wheels on steel axles, a reinforced pull handle on the trolley models and a smooth-rolling base on the 1900i — designed for repeated repositioning across construction sites, restoration sites and industrial floors

Technical specifications — DEH-i Series

ParameterDEH-500iDEH-900iDEH-1200iDEH-1900i
Dehumidification capacity (30 °C / 80% RH)59 L/day90 L/day120 L/day180 L/day
Technical airflow500 m³/h840 m³/h1400 m³/h2000 m³/h
Condensate tank10 L10 L10 L— (direct drain only)
Duct connection———Two ports
Power consumption880 W1150 W1380 W1700 W
Current3.8 A5.3 A6.8 A7.2 A
RefrigerantR-290 × 180 gR-290 × 250 gR-290 × 300 gR-290 × 465 g
Noise level (1 m)< 64 dB(A)< 64 dB(A)< 64 dB(A)< 60 dB(A)
ControlDigital controller + Modbus RTU RS-485Digital controller + Modbus RTU RS-485Digital controller + Modbus RTU RS-485Digital controller + Wi-Fi + Modbus RTU RS-485
Dimensions (L×W×H)495×434×660 mm630×453×798 mm630×453×798 mm630×430×1075 mm
Net / gross weight39 / 51 kg52 / 71 kg54 / 72 kg69 / 87 kg
Operating temperature range+10…+35 °C
Operating humidity range30–100% RH
Heat-exchanger protectionE-Coating
Defrost systemHot Gas Defrost
Fan typeHigh-pressure centrifugal with heavy-duty motor
Direct drainYes
Voltage / frequency220–230 V / 50–60 Hz
Air filter classG4
ProtectionIP22

Frequently asked questions

What is the difference between mobile and stationary industrial dehumidifiers?
A mobile industrial dehumidifier (such as the DanVex DEH-i Series) is designed to move between sites: construction sites, warehouse areas, restoration projects. It runs on standard single-phase 220–230 V, has wheels and uses a built-in tank or direct drain. A stationary unit (such as the DanVex DEH-K Series) is a permanent installation: usually three-phase 380–415 V at larger capacities (240–1000 L/day) with top-discharge airflow for high ceilings, often with Full Inverter, BMS integration and air purification. Use mobile when the humidity problem is temporary, multi-site or unpredictable; stationary when humidity control is a permanent building or process requirement.
Why is R-290 used in modern mobile dehumidifiers?
R-290 (propane) has a very low global-warming potential and high thermodynamic efficiency in this capacity range — meaning less energy consumed per litre of water removed. The charge per unit is small (180–465 g across the DEH-i range), and the circuit is sealed and factory-charged.
What area does a mobile industrial dehumidifier cover?
As a rule of thumb for typical industrial conditions (moderate moisture load, ceilings around 2.5–3 m, ordinary air exchange): the DEH-500i (59 L/day) covers up to ~80 m²; the DEH-900i (90 L/day) ~80–130 m²; the DEH-1200i (120 L/day) ~130–200 m²; the DEH-1900i (180 L/day) ~200–320 m². The actual choice depends on starting and target humidity, ceiling height, infiltration and process moisture sources. For heavy restoration, very high humidity or large volumes, calculate capacity per project — in many cases two smaller units distributed across the space dry faster and more evenly than one large unit. Contact us for precise sizing.
How long does it take to dry a flooded room with a mobile dehumidifier?
Drying time depends on the volume of absorbed water, the materials affected and the dehumidifier capacity relative to the area. A practical estimate for a typical residential or light-commercial flood: a single 30–60 m² room with wet floor, walls and furniture dries in 3–7 days with a correctly sized DEH-i unit (DEH-500i or DEH-900i) running continuously with openings closed. Timber, plaster and solid masonry dry more slowly than carpet or laminate. For multi-room or extensive flooding, professional restoration practice is to deploy several distributed units rather than one large central one. For any drying task longer than 24 hours, direct drain to a fixed point is recommended instead of the tank.
Built-in tank or direct drain — which is better?
Both are supported on the DEH-500i, DEH-900i and DEH-1200i — the site decides. Direct drain to a floor drain or hose is the right option for continuous unattended operation: the unit runs indefinitely without the tank overflowing. The built-in 10-litre tank is convenient where no drain exists (renovations, upper-floor restoration) and has auto-stop when full. The DEH-1900i is direct drain only: it is intended for installations where continuous duty is the default mode.
What is E-Coating and why does it matter in an industrial dehumidifier?
Mobile industrial dehumidifiers are exposed to a wider spectrum of corrosive agents than fixed installations: construction dust and lime on sites, salt vapour in coastal restoration, organic acids and cleaning agents in food and pharmaceutical use, salt solutions in food processing, and chlorine-laden atmospheres in pool maintenance. Over years of field deployment DanVex has seen standard uncoated exchangers fail within months in these conditions. E-Coating — applied by electro-deposition without solvents — forms a sealed protective layer on the aluminium fins and copper tubes that resists corrosion across these environments. It is standard on every DEH-i unit, not an option — because mobile equipment gives no guarantee of where it will be deployed next.
Can a mobile industrial dehumidifier run unattended for days?
Yes. The DEH-i Series is designed for continuous unattended operation. Three things make this possible: direct drain to a fixed point removes the tank-emptying limit; the on/off timer schedules operation around work shifts or off-peak electricity hours; and Hot Gas Defrost prevents evaporator icing overnight or in cold conditions. The sealed R-290 circuit and the IP22-rated housing are built for unsupervised operation. For multi-day deployment — typical in restoration and drying — the recommended set-up is direct drain to a floor drain and a permanent electrical connection.

Explore further

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