This summer I decided to design and hopefully build a DIY Air purifier. I came up with three designs and I need your vote to help me choose one of the three.

1. Maybe one of the simplest DIY purifier equipped with a fan, a HEPA / activated carbon filter.
2. This one allowes more aire to flow from the bottom to the top thanks to its cone shape again with a HEPA / activated carbon filter but it takes more space.
3. A wooden purifier, equipped with two smaller fans and a HEPA / activated carbon filter.

Vote by leaving a comment bellow. In case you have any suggestions I would love to read about them as well.