Rensair is the world’s first air quality ecosystem provider, trusted by businesses, organisations, transportation, and healthcare providers to provide cleaner and healthier air for every indoor space. We build the next-generation ventilation solution and air filtration system that offers a step change in how buildings and spaces are ventilated.

Our award-winning air purifiers remove 99.97 per cent of pathogens & pollutants to help the desired clients significantly reduce energy consumption and carbon emissions and meet their sustainability as well as net zero goals at competitive prices. We deliver Smart Demand Control Ventilation (SDCV), that consumes nine times less energy than traditional HVAC systems. We serve our clients with the best-in-class technology & energy management solutions to meet all the air purification standards.
Save Energy & Improve Your Air Quality
Start saving on your energy bills and decreasing your operational expenses with Rensair’s Smart Demand Controlled Ventilation. For decades, we have delivered best-in-class filtration technology and taken the technology to the next level. We improve HVAC for commercial buildings, commercial real estate facilities, and healthcare to take a step towards a greener and healthier future.

Our air quality ecosystem is specifically designed for indoor places that rely on mechanical ventilation systems, such as office buildings, healthcare institutions, university campuses etc. We integrate with your existing HVAC systems. We serve in more than 40 countries over five continents. Businesses worldwide trust our technology to improve indoor air quality and help achieve their net zero goals.

Our products include Core I, Core, Compact, Air Bubbl, and their respective replacement kits (HEPA filter + UVC lamp). We utilise sensors to monitor the air quality of various commercial venues. Seek our energy-efficient solutions to increase the operation of your leaking HVAC system.

As a renowned industry leader, Our specialised patented ventilation solution improves Indoor Air Quality (IAQ) globally, including many NHS trusts in the UK. Our top-notch H13 filtration system effectively eliminates mould, dust, pollen, volatile organic components, and other harmful contaminants. Our thorough examination of occupancy and indoor air pollution contributes to a greener environment and is considered a perfect fit for the commercial air purifier for mould.
Optimise Your Existing HVAC System With Rensair Specialised Solution

Our team of professionals takes a practical and flexible approach to addressing HVAC system issues and helping youth worldwide breathe clean air. By addressing HVAC inefficiencies, we design a top-class patented and economical ventilation solution with operations in the UK, Europe, USA, and Asia. We empower public and private organisations to reduce indoor pollution, expenses, and carbon emissions.

We integrate with your existing HVAC systems to significantly reduce energy usage and emissions. Even if you can't physically change your indoor spaces, we can still help you reduce your carbon footprint and save money. Our team operates in various sectors to ensure optimal performance & reliability in the building environment.

From clean air to carbon-cutting, we created the world's most lab-certified solution for reducing airborne pathogens, pollen, and pollution in non-residential buildings.

Trust our Rensair experts to bring next-generation ventilation technology to your business. Revamp your existing HVAC system with our standalone filtration systems, which set us apart from other organisations.

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