Diy Air Purifier Box Fan. Just note that your diy purifier will be more effective on the floor, rather than in a. If you need to purify the air in the dirtier and dustier environments, then you surely need this better diy hepa filter.
Recently we've heard reports of people making a diy air purifier by taping an hvac furnace filter to a box fan, so we tried it and tested it. Use four filters for a box diy air purifier: The filter plus fan and the box fan filter.
Easy to follow instructions will enable you to build this diy air filter in just a few minutes.
Compare that to 8,000 rmb ($1,300) for the fancy purifiers here in beijing. This is what i came up with. One thing you want to keep in mind is the quality of your fan. Easy to follow instructions will enable you to build this diy air filter in just a few minutes.