Clean air for every space

Mobile Air Purifier with Hospital Technology


Rensair traps and destroys more than 99.97% of airborne particles, including allergens, bacteria and viruses.


Clean air has never been more important.

The Rensair air purification technology was developed decades ago for Scandinavian hospitals, meeting strict air quality requirements.

Today, the Rensair air purifier is trusted by some of the largest companies globally as we continue to pursue our mission of bringing clean air to every space.

Trusted by businesses globally.

RENSAIR ICONS_Reference_01.jpg
RENSAIR ICONS_Reference_02.jpg
RENSAIR ICONS_Reference_03.jpg

Hospital-grade technology.

Originally developed for Scandinavian hospitals, the Rensair patented solution uses the most advanced air purification technology. Each air purifier consists of a germicidal ozone-free UVC light placed in the centre of a cylindrical high quality H13 HEPA filter. This captures and also inactivates viruses and bacteria trapped on the filter surface.

Tested by independent laboratories.

Independent worldwide leaders in science and technology have extensively tested and validated the Rensair air purifier technology. These include Eurofins, Norconsult, Oslo University Hospital, and the Danish Technological Institute.

Large cleaning capacity.

Rensair cleans up to 560 m³ of air per hour. This means that one Rensair air purifier can clean a room of 230 m² with normal ceiling height per hour. Use a combination of multiple Rensair units in larger spaces to maintain the same air cleaning rate.

Effective air circulation.

Rensair’s patented design and powerful fan create effective air circulation, ensuring that all air in a room is purified, as documented by the independent consultancy Norconsult.

The powerful fan pushes pre-filtered air into the cylindrical-shaped HEPA filter located in the middle of the unit. The fan creates high static air pressure in the cylinder, which pushes large volumes of air through the filter and distributes clean air at 360 degrees.

Easy to use.

It takes just one person to set up a Rensair unit and no installation is required. Just turn it on to start purifying the air. Operate Rensair with controls on the machine or by using a remote. Wheel mounting makes it possible to manoeuvre the air purifier between locations.

Rensair can adapt to different countries because of the interchangeable power plug.

Safe maintenance.

The sturdy metal shell makes the Rensair air purifier robust and durable for years. Pre-filters capture dust and dirt and prolong the life of the H13 HEPA filter. As a result you only need to change the HEPA filter after 9000 hours of continued use.

Rensair’s patented design featuring continued germicidal UVC illumination of the filter surface keeps the filter clean from pathogens and is therefore safe to change.

How it works.

PRE-FILTER - The Rensair air purifier sucks in the surrounding air from the top inlet perforations. Air travels through the removable pre-filters placed at the top of the machine, which catch and trap larger airborne particles and dust.

FAN - A powerful fan pushes the pre-filtered air down into the cylindrical shaped H13 HEPA filter located in the middle of the unit. The fan creates high static air pressure in the cylinder, which is necessary to allow sufficient air to flow through the high quality H13 HEPA filter and to boost air cleaning capacity.

HEPA-13-FILTER - As air hits the H13 HEPA filter, bacteria, viruses and smaller airborne particles and pollutants become trapped on its inner surface and held in place.

UVC-LIGHT - An 18w UVC lamp placed in the centre of the cylindrical drum continuously illuminates the entire filtration area. The UVC light breaks down the DNA and RNA of pathogens and thereby inactivates them. This continuous disinfection process ensures that the Rensair air purifier is always safe to operate and maintain.

CLEAN AIR - Large volumes of clean air travel out of the unit via the lower perforations. The cylindrical shape of the Rensair air purifier allows air to flow out in every direction, enabling effective air circulation suitable for almost all locations.

Get clean air for your business​.

Helping businesses across industries. The Rensair air purifier technology removes 99.97% of airborne viruses, bacteria and other pollutants


Hospital grade HEPA H13 filter

HEPA filters are mechanical filters with a capacity for sifting small particles at a much higher rate than any other conventional filter. HEPA stands for high-efficiency particulate air and refers to filters made in accordance with specific requirements. Hospital grade HEPA filters are H13 HEPA and above.

Germicidal UVC light

UVC light at 254nm inactivates bacteria and viruses by breaking down the DNA and RNA in them, thereby effectively destroying them. The UVC irradiation dose needed for inactivation varies from pathogen to pathogen. Due to Rensair’s patented design, any bacteria or virus caught on the HEPA filter surface will be exposed to a constant and high irradiation dose meaning the filter is continuously disinfected.

Bacteria & Viruses.

Der Rensair destroys more than 99.97% of airborne viruses and bacteria. Eurofins Denmark conducted a test to demonstrate the air cleaning efficiency of the Rensair air purifier.

As a control, an aerosol generator added bacteria and viruses into the air before the air flowed into the air purifier. Prior to being treated by the Rensair air purifier, the air was contaminated with >250 pathogens per m3 of air.

After the treatment, the test results show<1 pathogen per m3 of air. Eurofins concluded that the Rensair air purifier removes airborne viruses and bacteria to undetectable levels.


Airborne particles.

Norconsult tested the Rensair air purifier technology’s ability to remove airborne particles in a room over time. 

«The results show that the air purifier, on its own, cleans the air almost equally efficiently at two selected measuring points in the 93m3 test room and is thus little affected by placement.” and “In a ventilated room [i.e. room with an HVAC system running], the air purifier will also be able to get help from the ventilation system to create full circulation and thus removes particles more efficiently.»



In March 2021, the Danish Technological Institute (DTI) conducted rigorous tests on the Rensair air purifier.

The objective of the first DTI test was to determine the unit’s performance in reducing the concentration of Covid-19 particles in the air. The method used active aerosolized MS2 bacteriophages as a proxy for SARS-CoV-2 (Covid-19). The result was a particle reduction rate of 99.98 % in 15 minutes and above 99.99 % in 30 minutes.

The second test was to determine the efficacy of the unit’s UVC light in destroying Covid-19 pathogens on the filter. Again, this used active aerosolized MS2 bacteriophages as a proxy for SARS-CoV-2 (Covid-19). The result was that no virus particles could be detected, thereby demonstrating the effectiveness of the UVC in destroying all traces of the virus.


Product Specifications​.

  • Dimensions: H: 77 cm, Ø: 37 cm

  • Box dimensions: 84 cm x 43 cm x 43 cm

  • Net weight: 18 kg

  • Gross weight: Inklusive Verpackung: 21 kg

  • Colour: Weiss

  • HEPA filter: EU 13 (EN 1822 class H13)

  • UVC lamp: 18 W, 254 nm light

  • Powercord: 3 m long

  • CE certified (CH, EU & UK): 220-240 V, v ~50 Hz, IEC C14 to C13 connector to allow for different power plugs