why can't we make huge air cleaners for big cities like we have in our homes but on a very large scale?

Answer 1

How about instead of huge air cleaners, a series of smaller ones located around the busiest parts and most needed parts of the city on various levels like on buildings or something. They would run on solar power and can self clean by sending the impurities to the sewer where it can be filtered by the cities purification plants or directly into the buildings plumbing or something like that to keep costs down. I think the city would have to get support by the public of course on this as well as the businesses the cleaners may be attached onto if that's what they decide to do. It may be costly to install but at the same time, it seems that people want to support something like this; to breathe cleaner air in a polluted city or reduce sickness from dirty air making it safer for their children and themselves, it probably will be expensive but I'm sure some companies would support and donate to this fund making it a reality.

Answer 2

That is an interesting question.I would imagine the size of the filter and the electricity required to run the air cleaner could be possibles road blocks.

Answer 3

I hope your not serious. But if you are ; do you know what happens to those filters in your home when they get cloged and have to be replaced..(or even think of your vacuum). They go into the trash. So don't take this the wrong way but scooping up all the dirt in the air and putting it in a land fill is not my idea of a better solution. I think we are short on space already. thanks anyway, bud!

Answer 4

Large Filters are expensive.

Answer 5

We do already, they are called "forests".