Hello guys I'm working for a company who is making some interesting electrical appliances. Now we are trying to develop a drone air purifier which is only for indoor use and sell it all over the world. So I would really appreciate if you give me an advice to make this project successfully. Also I would like to know about your ideal drone air purifier if you can imagine it like its price, design, function. I don't matter whether it is vague or concrete. Thank you.