Our Certificates and Recognition

The only brand in Hong Kong that is tested Effective against COVID-19 (SARS-COV-2) on actual material surface with dried coating, by University College London, ISO/IEC 17025:2017 accredited laboratory.
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NASA Researched – Ranked top 3 out of 47 samples of Visible-Light responsive (VLR) TiO2-based catalyst. airDefender is the only commercial product in top 6 samples adopting Q-dot photocatalyst (Coutts et al., 2014)

Effectiveness published in American Journal of Infection Control (AJIC) – significant reduction of total cross infection rate in hospital (P<0.05) after 17mths (Puliam, 2015)<

Proven by Independent International Laboratory – Coated surface effectively decomposes virus, bacterial and tested oral acute non-toxic as well as skin irritations.

Tested by multiple laboratories against H1N1 Influenza virus, E. Coli, MRSA, SARS, Salmonella, Legionella, Listeria, HCoV-229E, hand-foot-mouth etc.,