DOS 450–1500 m³/hr Series Ductable False Ceiling Refrigerant Dehumidifier
The DOS 450–1500 m³/hr Series from HiDew, distributed by Humiscope, offers high-performance humidity control in a compact, ductable false-ceiling configuration. Designed for private swimming pools, wellness centres, and high-humidity commercial spaces, this system delivers quiet and efficient dehumidification while remaining completely hidden from view.
Mounted above the ceiling and connected via ducting, the DOS dehumidifier provides precise, autonomous management of temperature and humidity - ideal for applications where aesthetics and low noise are paramount.
Typical Applications
Private and commercial indoor swimming pools
Spas, gyms, and wellness centres
Museums, libraries, and archives
Cellars, basements, and storage areas
High-humidity commercial and residential spaces
Key Features
Ductable False Ceiling Installation: Compact and fully concealed design for unobtrusive installation in ceilings or technical voids.
High-Efficiency EC Fan: Equipped with an inverter-driven centrifugal fan for energy-efficient and quiet operation.
Autonomous Humidity Control: Built-in sensors and onboard logic.
Corrosion-Resistant Components: Pre-coated coils for long life in chlorinated or moisture-heavy environments.
Integrated Heating Options: Available with hot water coil or electric heater.
Optional Configurations
High-efficiency air filter (Class G4)
Hot water coil with 3-way valve
Epoxy-coated coils for aggressive environments
Electric heaters (up to 4 kW depending on model)
Hot gas defrost
Silent version (-2 dB(A))
Supply and extraction flanges for circular ducts (Ø 250 mm)
Extended control cable (2–20 m)
RS485 Modbus communication board
Wooden transport cage
Technical Specifications
Model Range: DOS 050–230 Series
Airflow: 450 – 1500 m³/hr
Dehumidification Capacity: 52 – 226 L/day*
Refrigerant Type: R410A (ozone-friendly)
Fan Type: EC centrifugal fan with inverter.
Heating Options: Hot water coil and/or electric elements.
Available Static Pressure: Up to 250 Pa
Power Supply: 230 V / 1-phase / 50 Hz or 400 V / 3-phase / 50 Hz
Sound Level: 45 – 54 dB(A)
Installation Type: Horizontal ducted – false ceiling
*Performance based on inlet air at 30 °C / 80 % RH.
Humiscope supplies and supports commercial and industrial refrigerant dehumidifiers across Australia. Our ducted and false-ceiling systems deliver reliable, quiet, and discreet humidity control for demanding applications.