But this Italian young man was apparently not happy about the status quo.
On Wednesday, he was spotted carrying a self-made air purifier, while riding on a bike in Chengdu, Sichuan Province.
According to the man, who called himself Mike, it cost him about 1,500 yuan($245) to build the device, using a home air purifier and attaching an oxygen mask to it.
Moreover, he also installed a storage battery and inverter as power supply.
However, even if it’s technically possible to do so, experts say it is quite unlikely to achieve the same effectiveness in air filtering as a good breathing mask can do.
And even in developed countries, where the air quality is much better, an air cleaner needs to exchange the air in a room seven to eight times every hour, in order to maintain desired indoor air quality.