The Airzone Flexa 25 Circular is described as an air-conditioning solution designed specifically for the needs of the UK market.
Airzone has expanded its line of advanced air conditioning solutions with Flexa 25 Circular. The new system is designed to respond even more precisely to installation requirements of the UK market, say the manufacturer.
Available now, Flexa 25 Circular represents an evolution of the Flexa 25 system, designed for multi-zone management of HVAC systems and indoor air quality (IAQ) control. With the introduction of the motorised circular damper with ionisers, the system now offers active air purification through ionisation, in a more compact format that can be adapted to areas with more limited space.
Flexa 25 Circular has been designed for advanced, professional installers to offer maximum installation flexibility and to further improve performance in terms of living comfort, air health and energy control.
The system uses negative ions to neutralise harmful particles such as TVOC, PM2.5, and PM10, using the air flow of the air conditioning system for successive purification cycles. The maker argues that the data speaks for itself: a 90% reduction in viruses and bacteria in 12 hours, rising to over 98% in 24 hours.
In addition, the system can automatically manage ventilation systems, activating them based on variables such as CO₂, TVOC, relative humidity, or according to cyclic ventilation and free-cooling logic.
To facilitate the work of professionals, Airzone offers two ready-to-use configurations:
- Flexa 25 Circular Wi-Fi Pack, which includes: system control unit, AirQ Sensor, Airzone Cloud Wi-Fi Webserver and 15 m bus cable.
- Flexa 25 Circular HUB Pack, which includes: system control unit, AirQ Sensor, Airzone Cloud HUB Webserver and 15 m bus cable.
With Flexa 25 Circular, Airzone says it is reinforcing its commitment to creating intelligent and modular HVAC systems, capable of combining personalised comfort, energy efficiency, and indoor air quality.

UK Heatwave
With a significant rise in temperatures expected this week, the company believes this is a good time to have a conversation about the changing needs of HVAC system in the UK.
Fernando de la Cruz Quintanilla, EMEA New Markets Director at, Airzone, says, “A 33º heatwave is set to blast the UK this week, the first of the year – and with it, we expect to see the annual flurry of Brits raiding the supermarket shelves for standing portable fans and lugging these home on their commute back from work. The question is – why do we put ourselves through this palaver every year, and most curiously – where do old fans from previous years go to die once the last heat spell has subsided?”
Fernando adds, “This annual ritual reveals far more about the UK’s built environment than it does about British weather. Only 5% of UK homes are equipped with air conditioning, compared to a whopping 90% in the US – so we’ve a long way to go before the UK’s housing stock (a sixth of which dates back to pre-1900) is ready to face more frequent and intense heatwaves.
“While standing fans just move air around without actually lowering the temperature of the room, AC units have significant cooling capacity. Buildings in the UK were designed to retain heat, and in a time of global warming – it’s time we change this.”
Fernando continues, “What’s more, smart climate control systems can offer precise temperature control that overcomes the energy inefficiency issues associated with conventional HVAC systems. The zoning technology divides different spaces into zones and customises temperature settings accordingly to meet the needs of the occupiers. By significantly reducing unnecessary energy consumption by only heating the zones that are occupied, instead of the whole building, these systems optimize energy efficiency and offer more sustainable solutions.”
