This is the second consecutive year that CAPS has been recognised. The system also won the coveted Industrial Design Award, one of the event’s major awards, thanks to the beautiful, practical design by Hong Kong designer Ms Charis Ng.

Additionally, the two proprietary inventions were also each awarded a Gold Medal with Jury Commendation at the Silicon Valley International Invention Festival 2019.

Fabricated in the form of a bus shelter, the enhanced system of the patented CAPS II represents a leap in efficiency in addition to featuring a stylish design. It is capable of removing fine suspended particles (PM10 and PM2.5) in the air using antibacterial, nano-porous filters; it also features an air curtain and duo air currents to shield from pollutants. The system harvests solar energy to function and has Internet of Things connectivity that enables real-time monitoring, data comparison and interactive displays to show useful information on weather, air quality and bus schedules.

The prototype of the novel In-building Hydropower System (Generation Three) was unveiled at the exhibition. In the third generation, the hydraulic design of the hydro-turbine has been improved to enhance efficiency. The new system also features magnetic coupling for transmission and sealing, which does not require an external power source, minimising the likelihood of wear and tear. A bypass subsystem has been designed to prevent excessive water pressure reduction and ensure normal water supply to the properties. The system has an output of about 200 watts when consuming three bars of water pressure, generating hydroelectricity in a green and low-cost way while reducing carbon emissions. About 1.4 tonnes of carbon dioxide emissions can be saved per annum, which is equivalent to about 60 trees.