Virus Removal

Daikins Streamer Technology Removes 99.9% of Viruses & Bacteria

 What is the Daikin streamer technology?

“Streamer Discharge” is a type of plasma discharge in which high-speed electrons collide with oxygen and nitrogen molecules, which then become activated and capable of oxidative decomposition of bacteria. This type of discharge has the ability to eliminate bacteria and mould as well as hazardous chemical substances and allergens, etc. Compared to standard plasma discharge (glow discharge), the discharge range of Daikin’s Streamer Discharge is wider, which makes it easier for electrons to collide with the oxygen and nitrogen molecules in the air. This enables activated molecules to be generated three dimensionally over a wide area, which results in an oxidative decomposition speed that is over 1,000 times greater with the same electrical power. Daikin’s Streamer Discharge technology has proven successful in stably generating high-speed electrons, a feat that has been considered difficult up to now.

How does the decomposition mechanism of Streamer technology work?

The massive streamer discharge hits the viruses, decomposing and fragmenting their surface proteins, which are then destroyed through oxidation thus rendering the virus safe. The streamer discharge then breaks down into safe nitrogen and oxygen atoms and water molecules.

Examples of results after decomposition

Given below are some of the nasty air-born particles that are often serious health hazards but the air purifier filters these out, subjects them to decomposition by the massive streamer discharge, and makes the air safe.

Virus   Pollen based allergen  
BEFORE Irradiation AFTER Irradiation BEFORE Irradiation AFTER Irradiation
Fungal Allergens   Allergens from animate beings
BEFORE Irradiation AFTER Irradiation BEFORE Irradiation AFTER Irradiation

Japanese Test Results

Measurement method 1:

Antibacterial test/bacterial removal test;
Testing organization: Japan Food Research Laboratories; Test  result certificate number 203120769-001;
Result of experiment: 99.99% removal/mould removal test; Testing organization: Japan  Food Research Laboratories; Test result certificate 204041635-001;
Result of experiment: 99.9% removal/Virus removal test; Testing  organization: Kitasato Research Center for Environmental Science; Test result certificate 21_0026 (issued by same organization); 
Result of experiment: 99.9% removal. These results will differ from actual location where product will be used. 2

Conditions of  experiment: Allergens were irradiated by streamer discharge and the breakdown of protein in the allergens was verified using the  ELISA method, cataphoresis, or an electron microscope. (Joint research with Wakayama Medical University.)

Measurement method 3: 
Virus removal test; Testing organization: Kitasato Research Center for Environmental Science; Test result certificate 21_0026 (issued  by same organization);
Result of experiment: 99.9% removal.

Test method 4: constant generation method; Test room: 22 to 24 m³;  Temperature: 23 ± 3°C; Humidity: 50 ± 20%; Ventilation condition: When concentration of 0.2 ppm is continually emanated, a removal  capacity of 0.08 ppm is maintained at 36 m³/h, which is within the guideline of the Ministry of Health, Labour and Welfare (Japan).  (This equates to the ventilation capacity of an approximately 65 m³ room.)