
Concealed ducted climate systems · Dubai, UAE
ONYX NOVA controls humidity.
Concealed dehumidification, fresh-air treatment and indoor-air-quality solutions for residential, hospitality, commercial and specialised spaces across the UAE.
Installed above the ceiling or in a service space, with its own return and supply ductwork.
Problem recognition
Does your home still feel humid while the AC is running?
Air-conditioning is designed primarily to control temperature. Its ability to remove moisture varies with operating conditions, system design and cooling demand. Lowering the thermostat may make the room colder without providing stable, independent humidity control.

Condensation on windows or diffusers
Water forming on glass, ceilings, ducts or around AC outlets.
Recurring mould
Mould returns on the same surfaces after cleaning and repainting.
Musty odours
A damp smell in closed rooms, wardrobes and storage areas.
Damp wardrobes
Clothing, shoes and stored items that never feel completely dry.
Damage to interiors
Furniture, finishes, artwork and textiles affected by sustained moisture.
Cold but humid rooms
The thermostat is low, the room is cool, and the air still feels heavy.
Humidity after fresh air
Indoor humidity rises whenever outdoor air is introduced.
Two systems, two jobs
Air conditioning and ONYX NOVA are complementary, not alternatives.
ONYX NOVA does not replace air-conditioning. The AC continues to control temperature; ONYX NOVA independently manages moisture and treats the air.
Air conditioning
- Primarily controls temperature
- Dehumidification depends on cooling operation
- May cause overcooling when used to fight humidity
ONYX NOVA
- Independently monitors and manages moisture
- Operates based on humidity demand
- Filters and treats circulated air
- Can support controlled fresh-air introduction when properly designed
ONYX NOVA does not replace air-conditioning. The two systems perform different but complementary functions.
How it works
Typical ONYX Core installation concept
Most ONYX NOVA solutions are concealed ducted systems installed separately from the air-conditioning system. ONYX Zenith may also be integrated into an air-conditioning or wider HVAC system where the project design allows.
- ONYX Core air path
- Condensate / fresh air
- Air-conditioning circuit
ONYX Core uses its own engineered return and supply ducts. Where the interior design allows, the ONYX NOVA and AC air paths may use separate sections of the same visible grille, helping preserve a clean ceiling appearance while keeping the systems functionally separate.
Installation architecture depends on the selected ONYX NOVA solution. Zenith may use an integrated HVAC arrangement following professional engineering review.
Applications
Where can ONYX NOVA solutions be applied?
ONYX NOVA provides concealed dehumidification, fresh-air treatment and indoor-air-quality solutions for residential, hospitality, commercial and specialised spaces across the UAE.
Solutions by problem
Start with what you are experiencing.
Recurring Mould and Condensation
When cleaning and repainting is not enough, the conditions behind the problem remain.
Read moreHigh Indoor Humidity
The room is cold, but the air still feels damp.
Read moreMusty Odours and Damp Wardrobes
Persistent damp smells in wardrobes, closed rooms and storage areas may indicate excess humidity, limited air circulation or moisture already absorbed by materials.
Read moreHumidity from Fresh Air
Fresh air is essential for ventilation, but in the UAE it can introduce a significant amount of heat and moisture into the building.
Read moreProtecting Furniture and Interiors
Stable humidity helps protect furniture, clothing, artwork, joinery and premium finishes from prolonged exposure to damp conditions.
Read moreDust and Indoor Air Quality
Reduce airborne dust and particles with an air-treatment solution selected for the property and its existing HVAC system.
Read moreProduct families
Engineered for different roles in the same building.


Aero
ONYX Aero 70
Fresh-air treatment, ventilation and dehumidification with total-heat recovery
View details

Why professional design matters
Equipment cannot be selected on floor area alone.
Two properties of the same size can behave very differently. Selection follows an assessment of the factors below, and is confirmed during design.
- Moisture load
- Outdoor temperature and relative humidity
- Quantity of introduced fresh air
- Property infiltration
- Ceiling height and room volume
- Occupancy
- Kitchens, bathrooms, spa and pool areas
- Exhaust systems
- Zoning
- Duct routes
- Available ceiling or service space
- Static pressure and airflow
- Target humidity and temperature
- Operating schedule
- Integration with AC, FAHU and ventilation systems
Selected projects
Where ONYX NOVA systems are installed.
Working with ONYX NOVA
From first conversation to commissioning and service.
- 01
Consultation
We discuss the property, what you are experiencing and what you want to achieve.
- 02
Site inspection and measurements
Conditions are measured on site and the property is reviewed room by room.
- 03
System selection and engineering concept
Equipment, airflow, duct routes, grille positions and drainage are proposed.
- 04
Installation and commissioning
Installation by our team or a partner contractor, followed by commissioning and setpoint configuration.
- 05
Service and filter replacement
Scheduled service, filter replacement and support after handover.

What we do
A professional, engineering-led approach.
- UAE-focused climate solutions
- Professional assessment before selection
- Concealed installations
- Engineered airflow distribution
- Commissioning and after-sales support
- Partner installation options
- Solutions for new construction and existing properties
Common questions
Clear answers before anything is specified.
Technical note: Final equipment selection and expected performance depend on site conditions, system design, outdoor-air conditions and professional assessment.
For professionals
Let's create better indoor environments together.
ONYX NOVA welcomes cooperation with professionals and companies who want to enhance their projects through effective humidity control, fresh-air treatment and improved indoor air quality.
Request a callback
Would you like to discuss your indoor climate?
Leave your contact details and an ONYX NOVA specialist will contact you to discuss your property and the most appropriate next step.
Next step
Ready to take control of your indoor climate?
Share your property details or drawings and we will advise on the appropriate approach after a professional assessment.

