The next evolution in destratification fan technology, providing power with performance. Ideal for improving comfort and reducing HVAC costs by an average of 35% in all building types, the Onyx Series features our new Airflow Bypass system, which exponentially increases air volume whilst minimising energy consumption. Trusted by top brands including Babcock, Heathrow Airport, Tesco, Samsung, Toyota and David Lloyd, Airius sets the benchmark for destratification fan systems.
All Airius fan systems come with a market leading 120 day money back guarantee and 3 year warranty
The Onyx Series represents the latest generation of destratification and cooling fan solutions from Airius, engineered with state-of-the-art patented Airflow Bypass Technology for exceptional performance, energy efficiency and precision airflow management in diverse environments and ceiling configurations.
This advanced airflow bypass system exponentially increases entrainment by maximising air volume bypassing the motor, significantly boosting airflow performance.
Whether your priority is improving comfort, reducing HVAC and air conditioning costs, meeting carbon reduction targets or supporting energy efficiency upgrades, the Onyx Series sets a new benchmark in destratification innovation — delivering performance, control and reliability for all types of spaces, buildings and environments.
Destratification fans from the Onyx Series are designed to optimise both heating and cooling systems in buildings with ceilings up to 13 metres. They maintain consistent temperatures by delivering powerful thermal destratification, reducing HVAC energy usage, supporting year-round comfort, and helping to stabilise internal climate conditions across a wide variety of spaces. Their efficient performance contributes to energy savings, operational consistency, and improved overall system performance in both new and existing infrastructure.
The Onyx Series helps reduce temperature gradients, enhance occupant comfort, and support carbon emissions reduction targets as part of wider decarbonisation strategies.
For installations in suspended, dropped or false ceilings, view our Suspended Series range.
All units in the Onyx Series are remarkably compact and lightweight — just 424 mm in height, 391 mm in diameter, and 5.9 kg in weight.
This low-profile, space-saving design allows for quick and simple installation in all types of buildings, even those where ceiling space or structural loading is limited. It’s an ideal replacement for bulky blade, HVLS or box fans, particularly where safety, efficiency, or aesthetics are key. The compact form also supports discreet integration into modern interiors and simplifies handling during installation in space-constrained or access-limited areas.
With no structural modifications required, the Onyx Series offers powerful airflow circulation and destratification with minimal disruption to interior layouts, making it suitable for both retrofits and new build projects across varied ceiling types. Its compact size and low weight also reduce structural load risk and make it a practical option for ceiling systems with limited tolerance or material restrictions.
Onyx Series destratification and airflow circulation fans are engineered for long-term durability across a wide variety of built environments. Rigorously Impact Tested, they’re built with a resilient PC/ABS resin housing rated UL 94 5VA flame resistant and features a 1.8 metre safety cable, ensuring dependable performance under daily operational stresses.
With IP44/54 protection against dust and moisture, the Onyx Series delivers consistent reliability in demanding conditions. Its robust construction maintains structural integrity under continuous use, supporting reliable airflow performance and consistent system output over extended operating periods. Designed for longevity and low maintenance operation, each unit contributes to sustained environmental control and energy efficiency across a wide range of building types.
For more aggressive environments, upgrade to the Titan Series with chemical-resistant housing for added protection.
Optimised for energy efficiency, the Onyx Series runs from as little as £0.35 per day (at an average UK rate of £0.22 per kWh) — even under continuous 24/7 operation.
Advanced motor technology from world leading motor manufacturers such as EBM Papst, combined with Airius’ patented fan design, maintains highly-efficient, low consumption operation whilst significantly reducing energy use across heating, cooling and air conditioning systems. Supporting measurable carbon footprint reduction, decarbonisation strategies and long-term operational savings — the Onyx Series consumes up to 90% less energy than competing systems.
This efficiency helps building operators lower utility costs, meet sustainability targets and improve overall HVAC system performance with minimal ongoing energy demand, even in energy-intensive or large-scale building systems.
The Onyx Series is designed for fast, simple installation in to any type of building or environment, with no ductwork or structural changes required. Each unit includes a ratcheted mounting handle that rotates up to 90°, allowing airflow to be directed as needed for any ceiling or floorplan layout.
Lightweight and easy to handle, Onyx units can be mounted on beams, chains or standard supports and are suitable for installation by contractors, electricians or facilities teams using our comprehensive Installation Guides. Units can also be repositioned easily as floor plans evolve, building use changes, or operational needs shift over time. The versatile design supports integration into new projects or phased retrofit programmes, even where ceiling access is limited or working hours are restricted.
Ask about our Turn-Key Supply and Installation Service for expert fitting and energy-saving results.
Airius destratification fans reduce heating and cooling costs by 35% or more. They efficiently recirculate warm air from the ceiling and cool air from the floor, balancing temperatures and optimising HVAC efficiency for year-round comfort and savings.
Our internationally-patented Multi-Vane Stator and Venturi Nozzle technology transfers rotational energy to create a slow-moving columnar laminar airflow. This innovative design increases throw distance and entrainment while reducing energy consumption.
All Airius products are proudly designed and built with premium components in the USA, undergoing rigorous testing to ensure the highest quality and reliability. This guarantees that Airius systems provide exceptional performance with robust durability.
Engineered with safety in mind, Airius fans can feature a 1.8m safety cable for added reassurance. Units are rated UL 94 5VA flame resistant (except Designer & Diamond Series) and include a built-in thermal cut-off, ensuring critical fire protection for buildings and occupants.
Airius fans are the smart destratification solution. Using patented technology and premium components, Airius fans can make a huge impact from a compact package.
See a detailed list of the benefits of Airius Destratification Fan, Airflow Circulation and Cooling Systems here.
Airius fans optimise the performance of heating systems by ensuring heat supplied is continuously circulated fully throughout spaces. This prevents the warmed air from rising and accumulating at the ceiling where it is not of benefit and can be lost through the roof.
This delivers the heat to where you want it, keeping occupants comfortable and satisfying the thermostat more efficiently, resulting in heating savings of 35% on average and in some cases even more!
Using a similar approach to airflow optimisation as that found in the latest generation of Rolls-Royce jet engines, Onyx fans achieve a big impact with minimal energy consumption.
Our patented Bypass technology increases the air draw through suction, maximising the air volume bypassing the fan motor, exponentially increasing air flow performance. This system is unique to Airius fans – and is one reason why our products far exceed the efficacy of primitive bladed fans.
Our Onyx fans use intelligent technology to move large volumes of air while consuming very little energy.
Compared to the costs of buying and operating air conditioning systems, Airius fans cost 90% less. And when used in conjunction with air conditioning systems, you can reduce your reliance on these costly systems and also improve comfort levels throughout your environment.
Read how Bowlplex saved 70% on cooling costs after installing Airius – Testimonial. Read how Tiso Retail decommissioned their air-con system after installing Airius – Testimonial.
Read how Bowlplex saved 70% on cooling costs after installing Airius – Testimonial.
Read how Tiso Retail decommissioned their air-con system after installing Airius – Testimonial.
Airius fans are built to deliver maximum impact with minimum energy use. We use premium components, including EBM Papst motors, to furnish our destratification fans, which are designed and assembled in the USA.
We’re confident that your Airius fans will deliver the cooler and more comfortable environment you want. And with a 5-year warranty backing your Airius products, you can place your order with confidence.
Onyx fans are quick and easy to install in a wide variety of settings. Because they require no ductwork or infrastructure, they can be positioned perfectly without any additional labour or materials required.
These free-hanging units can be angled using the ratcheted handle, as much as 90 degrees from vertical.
A single Onyx fan can achieve destratification for floor areas up to 185m2 – depending on the height of the ceiling and the nature of the space.
This means you can transform comfort levels in your environment without having to upgrade HVAC systems, install air-con or add a fleet of unsightly ceiling fans. Airius fans achieve impressive effects with minimal footprints.
If your environment is too physically demanding for standard destratification fans, you can upgrade your fans to the Titan Series. These highly durable fans are designed to withstand knocks, shocks and corrosion.
Using ABS resin for the housing and internal stator blades, along with stainless steel for the fixings, Titan Series fans are ideal for industrial applications and any setting in which your HVAC equipment may be exposed to physical abuse or contaminants.
The Titan Series level of protection can be applied to any Airius fan Series, which means you can benefit from its enhanced resilience in the ideal form factor and with the optimal performance for your environment.
Onyx destratification fans can be used with the Airius 1 AMP, 5 AMP and EC wall-mounted speed controllers. This allows you to customise your installation to gain maximum efficiency from your Airius system in any climate.
Airius engineers can help you evaluate your options and select the most efficient and effective fleet of destratification fans to lower your energy costs and improve comfort in any environment.
Ceiling mounted equipment can often present challenges when access is required for maintenance, cleaning and replacement.
In order to overcome this Airius supply a range of winch systems allowing units to be raised and lowered on demand remotely at the touch of a button.
Suitable for ceiling heights up to 33 metres and capable of supporting up to 100kgs, Airius winches include pre-wired terminals, disconnecting power during operation and reconnecting when raised back into place, as well as a safety locking mechanism providing additional security when at rest, even in the event of a power failure.
Airius destratification fans are designed to run 24/7. By running constantly, they prevent the fluctuations in temperature that occur when stratification goes untreated. In most cases, running the fans all day, every day, is the most efficient and effective way to maintain comfortable conditions.
When buildings are unoccupied for periods of time, Airius fans can be installed in conjunction with timers, integrated with a building management system (BMS) or used with wireless controls.
All Airius destratification fans come as off-white (Cool Gray C) as standard. For installations where colour and aesthetics are a factor, Airius destratification fans can be RAL colour match painted to suit your unique application.
This colour-matching option, combined with our elegant designs, means that you can transform the comfort of your environment without impacting the aesthetics.
Onyx series destratification fans are available with either PSC (permanent split capacitor) or EC (electronically commutated) motors from leading manufacturer EBM Papst. EC motors offer optimal operation at less than 100% speed.
All motor options offer incredible performance and efficiency, giving you years of cost savings while consuming remarkably low levels of energy.
For in-depth information, visit our FAQs page and explore all the Airius benefits, showcasing all the unique advantages of our fan systems.
Airius destratification fans offer a variety of controls and customisation options to meet your building's specific needs. With advanced control systems, custom features, and chemical-resistant upgrades, you can optimise performance and enhance aesthetics for any environment.
ROI in 18 Days
90% Reduction In Underfloor Heating
50% Cheaper Capital Costs Compared To Air Con
Community Hall Destratification Fan System
64% Energy Saving While Improving Product Quality
Energy Reduction & Air Purification
Optimised Shopper Comfort While Reducing Costs
Optimising Church Comfort & Efficiency
Cooling & Airflow Circulation Optimisation
To get the full picture, explore the case study in detail.
Simple to Install In-House or Use Our Turn-Key Installation Service
Take Advantage of Our Market Leading 3-Year Fan Warranty
Confidence Assured with Our 120-Day Money Back Guarantee
View our products in action within a wide range of client installations and industry applications.
Discover the full potential of Airius destratification fans by downloading our comprehensive information and sales brochure below.
Immediately! The moment the units are switched on, the efficiency of the building and HVAC system will start to improve, reaching their full potential once equalisation is achieved (within 48 hours depending on the size of the building).
Airius units are extremely efficient drawing a tiny electrical load. Using less than 5% of the power of some of the competing box type destratification fans. The figures below are the annual running costs based on the units running 24 hours a day 365 days a year, at an electrical cost of 22 pence per kWh.
Savings range hugely from building to building with average savings of 35%. With over 330,000 units sold we have had reported savings ranging from 20% to 76%. This is down to a number of factors, such as:
Ceiling Height:
The higher the ceiling the higher the level of savings for your property. This is due to a greater percentage of the area being overheated, leading to higher levels of stratification and in turn heat loss. The Airius units eliminate this stratification, minimising the buildings heat loss.
Insulation:
A well-insulated building will capture the maximum amount of heat at roof level leading to high levels of stratification. Airius units then equalise the temperature achieving average savings of 35% (depending on other factors).
The lower the level of insulation the higher the saving. This is due to a vastly increased level of heat loss, mainly escaping through the roof. The Airius units capture and recirculate the heat before it has the opportunity to escape.
Achieving Temperature:
If the thermostat set point is being achieved at ground level then the saving will be higher. If not then the Airius units will still reduce a building’s heating requirement.
The difference being that if the thermostat set point is not being achieved then the first part of the heat load reduction will be used to reach the thermostat set point before savings can be achieved.
Process heat/ Ambient heat
The higher the level of process heat, the higher the level of saving. Process heat is a term used for any heat produced by an internal process other than from the HVAC system. This process heat can be produced by anything from factory machinery, motors and ovens, to computer equipment, lighting and even body heat.
Ambient heat from sun light, even in winter coming through skylights, heated steel roof panels and windows will also be utilised.
This process/ambient heat rises up into the roof space and will be captured and recirculated further reducing the demand on the heating system.
The way Airius units work to reduce cooling costs is slightly different to heating. Typically in cooled spaces those people near the cooling outlet are too cold and those no more than a few metres away are too hot. People by windows can also get too hot due to solar gain and so on.
The Airius units help by equalising the temperature making sure that everyone benefits from the cooling as quickly as possible. It also helps the cool air reach thermostat set points quicker.
The Airius system also ensures that every bit of air in the building is moving very slowly. This gentle air movement across the skin creates a lower perceived temperature (evaporative cooling), allowing you to turn your thermostat up by between 2 and 4°C.
This along with the equalised temperature has proven to reduce cooling costs by anything from 20% up to 100%. This is due to the low cooling requirement in the UK. You only need to reduce the cooling load slightly to make huge savings.
Cooling Testimonials:
Bowlplex PLC
“We are very impressed with the results Airius fans have achieved in our ten pin bowling centre at Nantgarw in South Wales. The atmosphere inside has been greatly improved reducing staff & customer comfort complaints by 90%.
They have also allowed us to increase our thermostats from 19°c to 23.5°c resulting in a saving of over 70% on our cooling costs! The Airius system has far exceeded our expectations & will be standard equipment for all our 18 bowling centres in the UK.”
Ben Carne – Energy Manager
Tiso Ltd
“The Airius system was installed during the summer whilst the AC system was closed down for servicing and we were happy to find the environment now comfortable without the AC running. This has now led to the entire AC system being decommissioned with a considerable reduction in electricity consumption. We now consider destratification systems as a key part of our refits”
Iain Calder – Property Director
Stratification typically occurs at a rate of 0.5 –2ºC per metre and temperature differentials of up to 10°C are common over a height of 10 metres. In extreme cases, temperature differentials of 10°C have been found over a height of 3 metres.
The degree of stratification depends on a number of factors such as the building materials, level of insulation, activity in the building, heating/cooling set points and the outside temperature.
It is wrong to assume that if the level of stratification is at the lower end of the scale there is not much to be gained. This can be down to a number of reasons, such as:
1. The heating is off
2. Outside temperature is at or above room temperature
3. Insulation levels are so low, heat escapes before it can build up. Our most successful case studies have been from buildings like this (View Lush & Impress case studies).
In normal conditions the Airius range should equalise the temperature to within a 2°C band floor to ceiling.
No, we do not charge to carry out onsite surveys.
However this is on the condition that we have received and gone through all the relevant project information via phone or email to ensure we meet your goals. Based upon this information, we will happily carry out a full site survey free of charge.
Yes, Airius can arrange professional installation for your destratification fan system through our network of trusted, fully certified third-party contractors. Our installation partners specialise in destratification fan, HVAC and air circulation system installation across a wide range of industries and building types.
Holding industry-leading certifications—including NICEIC Approved Contractor status, ECA and SafeContractor approvals, as well as IPAF and PASMA qualifications for working at height—our installation partners ensure your system is installed safely, efficiently and in full compliance with industry regulations. They also have access to specialist equipment such as powered access platforms, scaffold towers and rope climbing solutions where required.
If needed, we can arrange a site survey to determine the optimal placement of your Airius units, maximising energy efficiency and system performance.
To minimise downtime and disruption to your daily operations, our installation partners also offer out-of-hours installation services, providing a smooth, hassle-free process tailored to your business needs.
Installation costs are often more competitive than those of local contractors, delivering a cost-effective solution without compromising on quality.
You are also welcome to use your own preferred contractor for installation. In these cases, Airius provides full technical support to ensure correct positioning and optimal results.
To arrange installation or discuss your requirements, contact our team today — we’re here to help you find the best installation solution for your project.
One of the most effective decarbonisation solutions available
