Live data from Hacker News

China builds ‘world’s biggest air purifier’ and it seems to be working

scmp.com

1–10 of 78 posts

Re: China builds ‘world’s biggest air purifier’ and it seems to be working

#2
Edit: as pointed bellow it's using filters. Sorry didn't see that

If I understand correctly this "air purifier" is just shooting polluted air up, bringing cleaner air from above.

That sounds like a very short term solution, but it's interesting

Re: China builds ‘world’s biggest air purifier’ and it seems to be working

#3
I really like how simple this solution is. Just using the sun to heat up air and have it go up through a bunch of filters, no moving parts. It strikes me as the right way to go about it. I wonder if you could use the greenhouses for growing plants, and the rising air to run small turbines..

Re: China builds ‘world’s biggest air purifier’ and it seems to be working

#4
post #2

Edit: as pointed bellow it's using filters. Sorry didn't see that If I understand correctly this "air purifier" is just shooting polluted air up, bringing cleaner air from above. That sounds like a very short term solution, but it's interesting

"The hot air then rises through the tower and passes through multiple layers of cleaning filters."

Re: China builds ‘world’s biggest air purifier’ and it seems to be working

#5
I wish there was some technical background of what such a "purification tower" does. If they found a genuinely innovative way of purifying air and dumping the toxins and by products sensibly, that is mazing for all of us kudos to them! However, if they tried to push the problem away by shooting polluted air away and sucking in fresher air, then it sucks.

Re: China builds ‘world’s biggest air purifier’ and it seems to be working

#6

I wish there was some technical background of what such a "purification tower" does. If they found a genuinely innovative way of purifying air and dumping the toxins and by products sensibly, that is mazing for all of us kudos to them! However, if they tried to push the problem away by shooting polluted air away and sucking in fresher air, then it sucks.

It says in the article that

>"The hot air then rises through the tower and passes through multiple layers of cleaning filters."

Meaning you just have to clean the filters

Re: China builds ‘world’s biggest air purifier’ and it seems to be working

#7
I wish there was more than anecdotal evidence for this. China has very strong statistics for their pollution levels that are often recorded in their weather reports.

For a project this big, they should be able to quantify the results instead of just relying on what people say about the air :/

EDIT: I'm a dummy, although the article leaves with an anecdotal, there are some nuggets of stats "The average reduction in PM2.5 – the fine particles in smog deemed most harmful to health – fell 15 per cent during heavy pollution." & "Cao said the results were preliminary because the experiment is still ongoing. The team plans to release more detailed data in March with a full scientific assessment of the facility’s overall performance."

Post reply on HN