Hong Kong Nano Mask won the International Invention Award for being lighter and thinner and blocking 80% of particles

Liang Huanfang, a professor of mechanical engineering at the Hong Kong Polytechnic University, spent 9 years developing a “multilayer nanofiber filter”. The masks, particles and bacteria that can be used to block 80% of the particles are comparable to those of the N95, but the materials used. Lighter and thinner, making breathing easier. The invention was recently awarded a special prize and a gold medal by the Geneva International Invention Exhibition and is expected to be put into production this year.

The multi-layer nanofiber filter material developed by Liang Huanfang is composed of a plurality of thin layers of nanofibers, each of which has a penetrating non-woven fabric, which can effectively block nanoparticles such as diesel particles, laser printer particles and bacteria from entering the human body. Prevent various chronic diseases.

Liang Huanfang said that traditional masks can only block about 28% of the particles that block 300 nanometers, while masks made with multilayer nanofiber filters can block up to 80% of the particles. Mr Leung said that traditional masks are made of multiple materials and their masks are much thinner. Under the same protection, the production cost is lower, so the price will be lower than the current masks.

In addition, Liang Huanfang pointed out that the mask can add functions, such as killing bacteria, so that the mask can maintain its efficacy after repeated use, and even convert gaseous pollutants into harmless substances. The filter material can also be used as a filter for producing indoor vents such as air-conditioners, and is widely used. According to reports, Liang Huanfang is currently negotiating cooperation with a number of overseas manufacturers, hoping to launch the product in the market this year.