92% in asia exposed to harmful air - air purification

According to the United Nations environmental organization, about 92% of the population in the Asia-Pacific region faces air pollution, which poses a significant risk to their health.
Some Asian countries have taken measures to limit their impact.
With public anger rising over the toxic air, authorities have turned to spraying water, which is considered to be insisting on contaminants and bringing them to the ground.
But tools like water cannons have little effect on being criticized and are a "band"
Aid "solutions that distract attention from the root causes.
New Delhi-
The most polluted big cities in the world-
In 2017, the helicopter was tried to sprinkle water over the city, but the visibility was low due to smog, and the helicopter could not fly.
Bangkok has tried a series of measures to deal with the smog that shrouded the city in January, including spraying overpasses with water and planting clouds. Cloud-
Sowing is stimulated by the use of rockets, cannons, or aircraft to inject chemicals into the clouds, but the technology is not always successful.
South Korea's attempt to create artificial rainfall in January failed.
Xi'an, a northern Chinese city, is experimenting with a giant air purifier the size of an industrial chimney that can reduce pm2. 5.
According to the researchers, 15 percentage points were concentrated in 10 square kilometers.
Hong Kong has opened a tunnel with air purification systems.
The government said it would be able to use large fans to remove at least harmful particles and sulfur dioxide, which sucked the exhaust gas into the air purification plants of three ventilated buildings along the tunnel.
According to the Hindustan Times, New Delhi has announced a plan to install large air purifiers at traffic intersections and air filters on the roof of the bus to catch pollutants as they move.
At a time when air pollution is particularly severe in winter, many residents of China's smog cities have fled to cleaner places, such as resorts in southern China, temporarily resting and returning after cleaning up.
China's largest online travel agency, Ctrip, estimates that more than a million residents in smog cities such as Beijing and Shanghai leave China every 2016 to escape the smog.
Popular destinations in these so
Smog refugees include places like Japan, Australia and New Zealand.
Some people are even in the lungs-
Ctrip said: "Clean up travel . "
Although experts say residents in smog cities are unlikely to see the health impact of breathing bottled air, this does not prevent entrepreneurs from selling jars from New Zealand, Canada, Australia, and Switzerland to them.
About $22, consumers can order a can of 8 liters Banff Air from Canada's famous tourist attractions, or buy a can of air from the British countryside for $125.
In China ,"
As a way to clean the lungs, suppliers promote smog tea while Mongolian residents drink "oxygen cocktails "--
Use a machine or air tank to spray oxygen into a juice glass.
The advertisement boasts that "only one oxygen cocktail is equal to three. hour-
Although there is no scientific evidence that they can protect people from pollution, they must walk in dense forests.