The world was put to chaos when we were hit by the COVID-19 pandemic. For months, people thrive to find solutions while trying to remain protected against the coronavirus. The world’s economy faced an enormous backlash that even famous brands suffered, some were even forced to shut down.

While vaccines are underway, massive layoffs and huge profit losses continue to put a dent to the collapsing US economy. Wall Street’s second-quarter report recorded its steepest drop in economic output. A lot of big companies are downsizing, some are leaving only the essential jobs needed at this trial time.

Even its economic counterparts in the world are facing a massive economic upheaval. Hong Kong for example warns that the government is facing greater pressure from the coronavirus crisis. Financial Secretary Paul Chan said that the COVID 19 surge is really worrying as it had taken its toll on the economy.


Hong Kong was among the first countries to face the dreaded effect of the deadly virus. At first, it was believed that they have managed to contain the virus at bay.

However, due to lack of foresight and the economic strain during quarantine, it showed yet again another failure in Hong Kong’s sanitation and disinfection department. The government failed to quickly respond to remain ahead against the devastating virus facing not just second, but the third wave of infection.


Notwithstanding its effort for containing the virus, Hong Kong reviewed anew its strategy against the on-going crisis. Classes were suspended, and face-to-face interactions among schools were not permitted.

The government implored for Hong Kongers to avoid external activities like casual trips, urging them to stay home as the third wave of infection escalates and new cases were untraceable.

With stricter protocols for social-distancing and quarantine measures, and stronger restrictions for businesses, dine-in is prohibited, and the wearing of face masks and face shields became compulsory.

Despite Hong Kong’s predicament, its government remained optimistic and hopeful while taking a stringent COVID protocol. Embattled to eradicate the third wave of infection, new cleaning and sanitation measures were implemented where the government opted for an eco-friendly photocatalyst coating solution starting from the states and public transports.


Apart from fogging and other cleaning methods, Hong Kong now actively campaigns to start the protection from the outside to the inside. This means that the sanitation and disinfection should begin from public places like schools, parks and malls, and public vehicles like taxis and minibuses.

airDefender® is the brand that supported the Hong Kong government’s vision come to life. With the latest technology using the power of visible light in killing germs and self-cleaning techniques, the sanitation and disinfection campaign took place starting from the taxis and minibuses.

These are the vehicles where the transmission of viruses and bacteria is likely to spread faster that could double the infection rate in Hong Kong.

With the joint effort of taxi drivers and minibus groups, cleaning supplies were also allocated to the public transportation sector. The pack contains masks, gloves, disinfectant spray, and cleaning guidelines to taxi and minibus drivers.


Sanitation and disinfection are critical solutions to lessen the transmission of the pathogens. This approach limits the worst-case scenarios of a possible outbreak, but instead, it curb and isolates the problem in key areas. The process involves:

  • Securing permits and certification from the Hong Kong government.
  • Online registration by filling up important details for the taxi and minibus drivers who wants to avail for free.
  • Drop points situated in the gas stations are placed.
  • airDefender® crew will decontaminate the taxi using our Titanium dioxide (TiO₂) Quantum dot Photocatalyst Advance Antimicrobial Coating Solution.
  • The process will take at least 20 minutes as the coating solution requires to be spread precisely to ensure its effectiveness.
  • We served over 8000 Hong Kong taxis.
  • Lastly, the taxis and minibuses will be protected for 365 days with the aid of our coating solution.


The “new normal” has become a periodical routine for everyone. TiO₂ quantum dot Photocatalyst Technology utilizing the nanoparticles has assisted in the sanitation, disinfection, and self-cleaning methods.

This indicates that nanotechnology is advancing rapidly and more discoveries are starting to emerge. Soon, all key areas within Hong Kong and likewise in the US shores will be equipped with cleaning robots, full-body disinfection counters, and a routine decontamination drop points to attend the masses.

Amidst all the expanding numbers of different ailments discovered nearly every year, there will be more reservations and ambiguities in the future. However, we must understand the importance of self-protection against the world of microbes, we must be equipped, and we must take initiatives to find curable solutions against it.

Photocatalysis is a promising technology. Our patented Modern Hygiene Solution eliminates 99.9% of viruses, bacteria, mildew, stains, and TVOCs. With long-acting antibacterial formula, we ensure the family and the community’s protection.

We remain to produce valuable, organic products and materials with extraordinary photocatalytic activities. Outputs such as anti-dust mites, and full-effect protection network in rebuilding a healthy habitable environment.