Some said this is a company that is trying to sell filters to go on furnaces to get rid of dust and things that cause allergys. It is listed as health trying to scam people it is a legimate call. Don't answer they are crooks.
Just received a call from them for diabetic medication. Not diabetic. I don't even know why they are calling. I just told him I don't need any help. He laughed and I hung up.