The polluted air released by factories (gas, toxic particles, etc.) can make people ill. A Dutch company came up with the idea of creating a giant vacuum cleaner in the shape of a tower. This "giant vacuum cleaner" can turn dirty, foggy air into clean, breathable air. Polluting air is drawn into the tower and transformed into non-polluting air. This principle is good for the planet, for us, for animals and plants. When the tower is dirty, it is cleaned. Around the tower (20 m), the air is 70% clean. A system is to be invented for bicycles using the same process.
