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Air Handling & HVAC Equipment Manufacturer
OULAIRUINA · SINCE 2015
Direct Expansion Air Handling Unit
An indoor air handling assembly paired with an outdoor refrigeration unit. Its modular sections can be selected for filtration, cooling and other air treatment duties.
Air Handling & HVAC Equipment Manufacturer
OULAIRUINA · SINCE 2015
AHU Modular Air Handler Unit
Modular functional sections configured around the project air-treatment requirements.
Air Handling & HVAC Equipment Manufacturer
OULAIRUINA · SINCE 2015
Horizontal Concealed Fan Coil Unit
A low-profile hydronic terminal for cooling, dehumidifying and heating rooms from above a suspended ceiling. The unit uses a copper-tube, aluminum-fin water coil.
Air Handling & HVAC Equipment Manufacturer
OULAIRUINA · SINCE 2015
Purified Total Heat Exchanger
A two-way ventilation unit that combines staged outdoor-air filtration with total-energy recovery. Filter and control options depend on the selected model.
Air Handling & HVAC Equipment Manufacturer
Since 2015
Focused on HVAC industry
In-house Manufacturing
Stable quality and reliable supply
OEM / ODM
Flexible customization support
Project Support
From design to after-sales
Our Product Families
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Horizontal Concealed Fan Coil Unit
A low-profile hydronic terminal for cooling, dehumidifying and heating rooms from above a suspended ceiling. The unit uses a copper-tube, aluminum-fin water coil.
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Floor-Standing Fan Coil Unit
The RNFP-LM floor-standing terminal circulates room air through a chilled- or hot-water coil. Its exposed cabinet sits at floor level for straightforward access.
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Ceiling Cassette Fan Coil Unit
A ceiling-integrated hydronic terminal that provides room cooling and heating through a visible ceiling panel. The fan and water coil sit above the ceiling.
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Direct Expansion Air Handling Unit
An indoor air handling assembly paired with an outdoor refrigeration unit. Its modular sections can be selected for filtration, cooling and other air treatment duties.
View Details
Modular Air Handling Unit
Modular functional sections configured around the project air-treatment requirements.
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Vertical Air Handling Unit
Vertical air handling equipment for plant rooms and floor-standing installations.
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Ceiling-Mounted Fresh Air Handling Unit
Ceiling-mounted treatment and distribution of outdoor air.
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Modular Desiccant Wheel Dehumidification Unit
Modular moisture control using a desiccant wheel and regeneration air circuit.
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Modular Heat Recovery Air Handling Unit
Modular air treatment with heat recovery between supply and extract air streams.
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High Bay Large Space Unit Heater
High-level air heating and distribution for large, high-ceiling spaces.
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Explosion-proof air conditioning unit
Air conditioning equipment configured for the specified hazardous-area requirements.
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Commercial fresh air exchanger
Fresh air exchange and filtration for commercial building ventilation.
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Ceiling-Mounted Energy Recovery Ventilator
Balanced supply and extract ventilation with energy recovery for ceiling installations.
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Filtered Energy Recovery Ventilator
A two-way ventilation unit that combines staged outdoor-air filtration with total-energy recovery. Filter and control options depend on the selected model.
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Single-Flow Fresh Air Supply and Filtration Unit
A supply-only unit combining a centrifugal fan and filtration in one cabinet. It delivers filtered outdoor air and requires a separate relief or extract path.
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Floor-standing Energy Recovery Ventilator with Air Purification
A floor-standing cabinet combining fresh air ventilation, recovery and filtration.
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Wall-Mounted Fresh Air Purifier
Wall-mounted fresh air purification for rooms with limited ceiling space.
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Ceiling-Mounted Dual-Flow Fresh Air Dehumidifier
Ceiling-mounted supply and extract air treatment with dehumidification.
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Small Size High Efficiency Series Energy Recovery Ventilator
Compact energy recovery ventilation for projects with restricted installation space.
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Commercial Fresh Air Purification System
Filtered fresh air equipment for commercial ventilation networks.
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Silent Type Series Ventilator
Duct ventilation equipment designed around sound-sensitive applications.
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Large Standard Series Energy Recovery Ventilator
Larger-format supply and extract air ventilation with energy recovery.
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Ceiling-Mounted Heat Recovery Unit
A ceiling-mounted air handling unit combining fresh air treatment and heat recovery.
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Medical Clean Air Handling Unit
Air treatment equipment for medical and controlled-environment projects.
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Crossflow Air Curtain
A crossflow-fan air curtain for controlled air separation at doorways.
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Centrifugal Air Curtain
A centrifugal-fan air curtain for building entrances and larger openings.
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Vertical Side-Blow Centrifugal Hot Air Curtain
A vertical heated air curtain with side discharge across an entrance.
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Ceiling Exposed Fan Coil Unit
An FP-WM ceiling-mounted hydronic fan coil unit with an exposed cabinet for room cooling and heating.
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Commercial fresh air exchanger
Fresh air exchange and filtration for commercial building ventilation.
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Ceiling-Mounted Energy Recovery Ventilator
Balanced supply and extract ventilation with energy recovery for ceiling installations.
View Details
Filtered Energy Recovery Ventilator
A two-way ventilation unit that combines staged outdoor-air filtration with total-energy recovery. Filter and control options depend on the selected model.
View Details
Single-Flow Fresh Air Supply and Filtration Unit
A supply-only unit combining a centrifugal fan and filtration in one cabinet. It delivers filtered outdoor air and requires a separate relief or extract path.
View Details
Floor-standing Energy Recovery Ventilator with Air Purification
A floor-standing cabinet combining fresh air ventilation, recovery and filtration.
View Details
Wall-Mounted Fresh Air Purifier
Wall-mounted fresh air purification for rooms with limited ceiling space.
View Details
Ceiling-Mounted Dual-Flow Fresh Air Dehumidifier
Ceiling-mounted supply and extract air treatment with dehumidification.
View Details
Small Size High Efficiency Series Energy Recovery Ventilator
Compact energy recovery ventilation for projects with restricted installation space.
View Details
Commercial Fresh Air Purification System
Filtered fresh air equipment for commercial ventilation networks.
View Details
Silent Type Series Ventilator
Duct ventilation equipment designed around sound-sensitive applications.
View Details
Large Standard Series Energy Recovery Ventilator
Larger-format supply and extract air ventilation with energy recovery.
View Details
Modular Air Handling Unit
Modular functional sections configured around the project air-treatment requirements.
View Details
Vertical Air Handling Unit
Vertical air handling equipment for plant rooms and floor-standing installations.
View Details
Ceiling-Mounted Fresh Air Handling Unit
Ceiling-mounted treatment and distribution of outdoor air.
View Details
Modular Heat Recovery Air Handling Unit
Modular air treatment with heat recovery between supply and extract air streams.
View Details
Ceiling-Mounted Heat Recovery Unit
A ceiling-mounted air handling unit combining fresh air treatment and heat recovery.
View Details
Direct Expansion Air Handling Unit
An indoor air handling assembly paired with an outdoor refrigeration unit. Its modular sections can be selected for filtration, cooling and other air treatment duties.
View Details
Modular Desiccant Wheel Dehumidification Unit
Modular moisture control using a desiccant wheel and regeneration air circuit.
View Details
Explosion-proof air conditioning unit
Air conditioning equipment configured for the specified hazardous-area requirements.
View Details
Medical Clean Air Handling Unit
Air treatment equipment for medical and controlled-environment projects.
View Details
High Bay Large Space Unit Heater
High-level air heating and distribution for large, high-ceiling spaces.
View Details
Crossflow Air Curtain
A crossflow-fan air curtain for controlled air separation at doorways.
View Details
Centrifugal Air Curtain
A centrifugal-fan air curtain for building entrances and larger openings.
View Details
Vertical Side-Blow Centrifugal Hot Air Curtain
A vertical heated air curtain with side discharge across an entrance.
View Details
Horizontal Concealed Fan Coil Unit
A low-profile hydronic terminal for cooling, dehumidifying and heating rooms from above a suspended ceiling. The unit uses a copper-tube, aluminum-fin water coil.
View Details
Floor-Standing Fan Coil Unit
The RNFP-LM floor-standing terminal circulates room air through a chilled- or hot-water coil. Its exposed cabinet sits at floor level for straightforward access.
View Details
Ceiling Cassette Fan Coil Unit
A ceiling-integrated hydronic terminal that provides room cooling and heating through a visible ceiling panel. The fan and water coil sit above the ceiling.
View Details
Ceiling Exposed Fan Coil Unit
An FP-WM ceiling-mounted hydronic fan coil unit with an exposed cabinet for room cooling and heating.
View Details
ABOUT OULAIRUINA
Integrated design.
Made for real projects.
Founded in 2015, Oulairuina combines equipment research, design, production and project support. Five product families connect fresh air, air handling, direct expansion equipment, industrial heating and fan coil terminals.
Flexible Configurations
Adaptable to different project requirements
Equipment Selection
Wide range of HVAC product families
Manufacturing Capabilities
In-house production with consistent quality
Technical Support
Professional support throughout the project
Applications
More Applications
Commercial Buildings
Offices, hotels, shopping malls and more
Residential Ventilation
Healthy and comfortable indoor environment
Industrial Facilities
Ventilation and air treatment for industrial spaces
High-Bay Spaces
Solutions for large-space ventilation and air distribution
Low-Humidity Environments
Dehumidification for special process requirements
Our Project Solution Process
Requirements
Understand project needs
Selection
Recommend suitable equipment
Configuration
Flexible design and customization
Installation Support
Guidance and technical support
After-sales
Long-term service support
Featured Project
Peking University Institute
of Advanced Agricultural
Sciences
Rotary heat recovery equipment
We provided rotary heat recovery equipment for the Peking University Institute of Advanced Agricultural Sciences, contributing to a healthy and comfortable research environment.
View More ProjectsInsights & Knowledge
View All Articles
AHU Functional Sections
A starting point for discussing a modular air handling configuration.
Read More
HRV and ERV Explained
Understand the recovery-core distinction before selecting fresh air equipment.
Read More
Fan Coil Selection
Match the terminal arrangement to the room and the water system.
Read MoreTell Us About Your Project
Project Inquiry
Share your project information and our team will provide a tailored solution for your needs.