{"id":3330,"date":"2026-01-12T08:21:55","date_gmt":"2026-01-12T08:21:55","guid":{"rendered":"https:\/\/ohfeel.gr\/exoudeterosi-koronoiou-hcov-229e\/"},"modified":"2026-03-11T13:52:00","modified_gmt":"2026-03-11T13:52:00","slug":"covid19-elimination-report-hcov-229e","status":"publish","type":"page","link":"https:\/\/ohfeel.gr\/en\/covid19-elimination-report-hcov-229e\/","title":{"rendered":"CZ02 – Covid-19 Virus Elimination Report-HCoV-229E"},"content":{"rendered":"\t
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CZ02 – COVID-19 VIRUS ELIMINATION TEST SUMMARY (HCoV-229E) \u2014 RO3E<\/h2>\n

OH-FEEL CZ SERIES CZ02<\/strong><\/p>\n

Guangdong Detection Center of Microbiology<\/strong> (GDDCM)<\/p>\n

Report No.:<\/strong> 2021FM08210R03E<\/p>\n

1. Testing Facility Credibility<\/h3>\n

The Guangdong Detection Center of Microbiology (GDDCM) is a nationally recognized microbiology laboratory in China, frequently used for medical, biodefense, sterilization, and air-disinfection validation.<\/p>\n

The laboratory operates under strict national standards and is widely used for virus inactivation and airborne disinfection performance testing.<\/p>\n

2. Description of the Test<\/h3>\n
    \n
  • Test Standard:<\/strong> Technical Standard for Disinfection (Ministry of Health P.R. China, 2002), Section 2.1.3<\/li>\n
  • Virus:<\/strong> Human Coronavirus HCoV-229E (ATCC VR-740)<\/li>\n
  • Host Cell:<\/strong> Vero cells<\/li>\n
  • Device Tested:<\/strong> OH-FEEL Hydroxyl Air Protection System (Model CZ02, vehicle \/ portable)<\/li>\n
  • Test Chamber Volume:<\/strong> 1 m\u00b3<\/li>\n
  • Exposure Time:<\/strong> 2 hours<\/li>\n
  • Natural viral decay was mathematically removed from the results<\/li>\n<\/ul>\n

    3. Key Results<\/h3>\n

    Initial airborne HCoV-229E concentration:<\/strong> 4.07\u00d710 \u2013 6.76\u00d710 TCID\/m\u00b3<\/p>\n

    After 2 hours of OH-FEEL operation:<\/strong><\/p>\n

      \n
    • 3.24\u00d710\u00b2 TCID\/m\u00b3 (Trial 1)<\/li>\n
    • 1.91\u00d710\u00b2 TCID\/m\u00b3 (Trial 2)<\/li>\n
    • 2.40\u00d710\u00b2 TCID\/m\u00b3 (Trial 3)<\/li>\n<\/ul>\n

      Viral reduction rate:<\/strong> 99.99%<\/strong> (all trials)<\/p>\n

      4. Summary Statement<\/h3>\n

      Testing performed by the Guangdong Detection Center of Microbiology confirms that the OH-FEEL CZ02 Hydroxyl Air Protection System<\/strong> achieved a 99.99% reduction of airborne human coronavirus HCoV-229E within a 2-hour exposure period in a sealed 1 m\u00b3 viral chamber.<\/p>\n

      These results demonstrate strong antiviral performance, validating the OH-FEEL system as an effective airborne virus mitigation technology for enclosed vehicle cabins and portable indoor spaces.<\/p>\n

      Report Issue Date:<\/strong> 2021-06-18<\/p>\n

      This summary is provided for clarity. Refer to the original COVID-19 (HCoV-229E) laboratory test report for full data and detailed methodology.<\/em><\/p>\n<\/div>\n\t\t\n