Usually we assume pollution exists out there on the streets, and that inside out houses it is clean and pure. Unfortunately it is not so and we have to understand that the air is equally impure inside out houses as well. Air fresheners may help in reducing the odour but they do not purify the air. Thus, here is a gadget that not only tells you how polluted the air is, but it also purifies your air to an extent.
It is shaped like a tree stump and looks pretty cool. Park Jun Seok and Kwon Hye Rim have created the Green Ring, which keeps your ait clean and pure. When the air is bad, the stump turns red and when it is green that means the light is good. It is made of recycled materials and is thus a great way to make sure that everything is alright.
You would just need to pull the little branch a bit in order to make sure there is enough power supply. I would so love to get one for myself and if you asked me, there could not be a better way to get anything than this. Park Jun Seok and Kwon Hye Rim certainly know that this could solve many problems.