US NASA Research

Ranked top 3 out of 47 samples of Visible-Light responsive (VLR) TiO2-based catalyst. AirDefender is the only commercial product of the top 6 samples that adopt Q-dot photocatalyst (Coutts et al., 2014)

American Journal of Infection Control

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)

TNO Innovation for Life

TNO performed the microbial test required by the EFSA. No surviving CFU was found on the spectrum of microbial activity. (Overkamp, 2014, p.10)

Hong Kong Brand Council

AirDefender International Co. Ltd was hailed as one of the 2020 Top Emerging Brands by the Hong Kong Brand Development Council (BDC). ("Brand Awards", 2020)

Public Safety


Our technology has been successfully applied to the metro and suburban railway system in Budapest, Hungary by our local applicator, Resysten. After nearly a year of follow-up testing, the overall bacterial counts by ATP meter decreased by more than 90%. As a prominent public health achievement, this result was presented to the Health Ministers of participating countries at the 3rd CEEC-China Health Ministers’ Meeting1 and its exhibition on June 19, 2017, where the strategic cooperation agreement was signed under the witness of the Health Minister of China and the Economic Minister of Hungary to develop the Central and East European markets together.

Public Safety


AirDefender and ICON Hotel collaborated to ensure the cleanliness and sanitation of the hotel employees and their guests. The video on the left showcases the airDefender's 365-Day Q-dot TiO2 antibacterial and antiviral coating protection being applied to different areas in the Hotel ICON. The coating's long-lasting antibacterial and antivirus ability inhibit and eliminate 99.9% of bacteria and viruses, where its effectiveness isn't affected by washing, alcohol, or other cleaning protocols. The application covered Hotel ICON's public areas, including lift, gym room, gym equipment, changing rooms, lockers, restrooms, lobby, and more upgrading the hotel's sanitation standards.

Public Safety


In July and August 2020, airDefender’s professional team coordinated together with our authorized applicators, Eco-oil, where over 8000 taxis and 800 minibuses were sprayed and coated by airDefender's Photocatalyst TiO2 long-lasting antiviral and antibacterial coating. Taxis and minibuses were chosen for their high risk of cross-infection, given that the likelihood of viruses spreading within such small, enclosed vehicles is high.

Public Safety


People in Hong Kong have been fighting COVID-19 since the start of 2020, and the major cross-harbor ferry operator, the “Star” Ferry Limited, supported by airDefender and our authorized applicator, Eco-Oil, successfully introduced the Q-dot Photocatalyst TiO2 Antibacterial and Antiviral coating technology onto their fleet and to their public areas as a preventive measure against the virus.