React-Air Expanse

Air and Surface Virus Neutraliser

The combined power of UVC, HEPA and

Ozone, to give the air and surfaces in

your building extra safety from viruses

The React-Air Expanse, is a portable air and surface steriliser designed for use in commercial environments. Using a UVC technology, the powerful fans drive the airflow through the decontamination chamber, neutralising bacteria, viruses, pollen and odours, delivering clean and sterile air to a room.

The Expanse is also a powerful ozone generator, which can be set to activate when a room is unoccupied, filling the environment with ozone gas. When the ozone comes in to contact with items and surfaces, it eradicates viruses and bacteria, sterilising everything it touches UVC and Ozone technology has been used for many years to sterilise hospitals, operating theatres and surgical instruments. Air Flow, Ozone Release and UVC Dose can be controlled using the UVC touch screen. The Expanse also contains a powerful sensor array which monitors Air Exchanges, Air Quality and UVC dose, which can be set to neutralise different types of viruses. This information is displayed on the screen when in operation to give your building users extra peace of mind

Air Sterilisation using UVC and HEPA Technology

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The Expanse draws air in to its extraction vents which are specifically located at shoulder height, so as to to capture as many virus particles as possible. The air then passes through a medical-grade HEPA filter, trapping any larger contaminants, and finally through a high intensity UVC chamber, capable of delivering a dose of over 240J/M3. The high power, variable fan can circulate up to 2000 meters cubed of air per hour - enough to give 9 air cycles per hour in an average 50 person office space

Advanced Monitoring Technology and

Cloud Based Online Systems

Advanced Surface Sterilisation with Ozone Technology

The Expanse contains 4, high powered ozone discharge plates which operate as a separate function from the air cleaning UVC technology. Ozone can be harmful if inhaled so the Expanse can be set, by an authorised user with a password, to be released when the room is empty. This can be set on a timer function and an audible and visual warning is given before ozone is dispersed, with an emergency shutoff feature, should anyone still be in the room. Once the ozone cycle is complete, the Expanse switches back to UVC mode to eliminate any trace ozone, faster than it’s natural half-life conversion back to oxygen.

The touchscreen control of the Expanse can be used to set fan speed, UVC dose and adjusted to neutralise different types of bacteria and viruses from the air.

 

But the Expanse also contains a complex sensor array which actively monitors Air Quality (AQI) and air exchanges within the room it is placed. This information is synced wirelessly with our cloud platform so that information is always available to building manages, across multiple units and multiple sites.

 

The touch screen can also be set to display this data. This is highly effective for creating peace of mind for building occupants, delivering air cleaning that can actually be seen in real time, on each Expanse unit.

 

The data is available through our React-Air mobile app and on our online web-based app, delivering confidence that you are meeting your duty of care.

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How effective are our React-Air products against coronavirus?

Since coronavirus (covid-19) is a new virus, there have been no studies.  In fact, any company claiming that their air steriliser is guaranteed to eliminate Covid-19 must be able to back this up with evidence.  However, scientists have been studying the susceptibility of Coronaviruses to UV-C light for over 40 years.  This information, published by research.net shows the results and effective dosages of UV-C light required to inactivate various strains of coronavirus.

“Table 1 above summarises the results of studies that have been performed on Coronaviruses under ultraviolet light exposure, with the specific species indicated in each case. The D90 value indicates the ultraviolet dose for 90% inactivation.

Although there is a wide range of variation in the D90 values, this is typical of laboratory studies on ultraviolet susceptibility. The range of D90 values for coronaviruses is 7-241 J/m2 the mean of which is 67 J/m2, should adequately represent the ultraviolet susceptibility of the SARS-CoV-2 (COVID-19) virus.”

By using this exposure data, and comparing the UV light irradiance measurements from our products, we calculate the exposure times required to deactivate coronaviruses.  This is however, a calculation and currently is not backed up by labratory tests.

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