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Tests confirm eliminating effect of Daikin’s Flash Streamer Technology on novel Coronavirus

Press Release, December 2020

In a consequence of the risks associated with Covid-19, the efficiency of Daikin’s patented Flash Streamer technology to eliminate the causative SARS-CoV-2 virus was tested. Daikin's technology was proven to inactivate more than 99.9% of the novel coronavirus.


Vienna, December 4, 2020 – Leading HVAC-R company Daikin confirmed the effectiveness of its patented Flash Streamer technology, which successfully inactivated more than 99,9% of the coronavirus (SARS-CoV-2) after irradiating the virus for 3 hours. The positive results of Daikin’s technology on the coronavirus are just the first step in being able to paint a more accurate picture as to the effectiveness of their clean air solutions against the SARS-CoV-2 virus. Further tests will be performed on specific Daikin products to ensure accurate and correct information about products in this regard.


Highly Effective Technology

Daikin is pleased that the innovative Flash Streamer technology was proven to be highly effective against the coronavirus after comprehensive testing. Daikin Industries Ltd in cooperation with Professor Shigeru Kyuwa from the Department of Biomedical Science of the University of Tokyo and a group of research led by Professor Shigeru Morikawa from the Department of Microbiology of the Okayama University of Science conducted the experiment to determine the effectiveness of Daikin’s patented Flash Streamer technology against the coronavirus. In the experiment, the viruses were irradiated for 3 hours using Daikin’s Flash Streamer technology.

 The results of this experiment showed that:

·         Flash Streamer discharge inactivated 93,65% of coronavirus (SAR-CoV-2) after an irradiation time of 1 hour

·         Flash Streamer discharge inactivated 99,97% of coronavirus (SAR-CoV-2) after an irradiation time of 3 hours


Further Experiments Needed

The aforementioned tests were not designed to evaluate product performance, furthermore it should be noted that experiments of this kind are conducted under laboratory conditions that differ from those found in standard living situations.

Daikin is committed to providing accurate and correct evidence with regard to the SARS-CoV-2 virus, the company will seek further testing on products equipped with the highly effective Flash Streamer technology.

As of writing, a timeline of when these tests will take place has not been set yet , however, fully comprehensive information on the efficacy of products, will be provided as soon as the additional testing is completed.


About Daikin’s Flash Streamer Technology

The Flash Streamer technology was developed by Daikin in 2004 to perform an oxidative decomposition of harmful substances. The Streamer discharge is a type of plasma discharge featuring an innovative air purification technology that stably generates high-speed electrons. The massive streamer discharge hits viruses, mould, bacteria, allergens and hazardous chemical substances decomposing and fragmenting their surface proteins, which are then destroyed through oxidation, rendering the virus safe. The streamer discharge then breaks down into safe nitrogen and oxygen atoms and water molecules.

Its oxidative decomposition capability is much higher than conventional plasma discharge used in standard technologies, resulting in an oxidative decomposition speed that is nearly 1,000 times greater. Moreover, when combined with air components, these high-speed electrons have a capability for powerful oxidative decomposition that continuously removes odours, bacteria and indoor pollutants such as formaldehyde.

IMPORTANT NOTE: The tests described herein only concern the patented Flash Streamer Technology. The effects of products equipped with Flash Streamer Technology or the effects in actual use environment may differ. For more information on the Daikin products incorporating the Streamer Technology, please refer to the relevant product information.

Source: “Study report on the inactivation effect of plasma ion generator (Daikin Streamer) on SARS-CoV-2” redacted by Shigeru Morikawa, Department of Veterinary Medicine, Microbiology Course, Okayama University of Science.



Daikin Airconditioning Central Europe
Daikin Airconditioning Central Europe was founded in 1999 with its headquarters in Vienna, Austria. The company’s portfolio comprises products and solutions for heating, cooling, ventilation, air conditioning and refrigeration. Approximately 410 employees are in charge of sales and service operations in 16 countries across Central and Eastern Europe (Austria, Czech Republic, Slovakia, Hungary, Romania, Bulgaria, Moldavia, Slovenia, Serbia, Croatia, Bosnia & Herzegovina, North Macedonia, Montenegro, Kosovo, Albania, Poland). 
About Daikin Europe N.V.
Daikin Europe N.V. is a wholly-owned subsidiary of Daikin Industries Limited and a major European producer of air conditioners, heating systems and refrigeration equipment, with approximately 6946 employees throughout Europe and major manufacturing facilities based in Belgium, the Czech Republic, Germany, Italy, Turkey and the UK.
Globally, Daikin is renowned for its pioneering approach to product development and the unrivalled quality and versatility of its integrated solutions. With more than 90 years’ experience in the design and manufacture of heating and cooling technologies, Daikin is a market leader in heat pump technology.
About AHT Cooling Systems
With approx. 1600 employees and 4 international production facilities, Austrian based AHT is the world's leading manufacturer of commercial plug-in refrigeration and freezing systems and is supplying major supermarket and discount chains as well as ice cream and beverage manufacturers for more than 35 years with an innovative and ecologically beneficial product range. In 2019, the company was acquired by Daikin Europe N.V.
Press contact:
Miroslava Stanic
General Manager Marketing & Corporate Communications,
Daikin Airconditioning Central Europe HandelsgmbH
Tel.: 43 (0)1 – 253 21 11 - 101
Lemböckgasse 59/1/1
1230 Vienna, Austria


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