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Lots of people are suffocated to death when evacuating places like the subway and tall buildings, The existing way to supply oxygen in such situation is to soak a handkerchief in water to breathe with. But, it has limits in time and place, and to get water and a handkerchief is not easy.
So,HandO2 to keep smoke from suffocating people to death Strengths.
Places like the subway and tall buildings can have a large amount of it in their fire emergency cabinets thanks to its small size and low-priced material.
The HandO2 handkerchief is designed to supply oxygen regardless of time and place.
Changwon, South Korea
Min Chae Kim,
Young Sin Jang,