I spend a majority of my day at work. I noticed that I wasn't feeling well while there. My nose would itch, my head would hurt and my skin would be itchy. When I would go home for the weekends I would notice I would feel like myself again. I was also very tired. My doctor recommended that I buy this. I hesitated at first b/c it was expensive but then I read all the wonderful reviews and saw the website and it was a no brainer. I immediately feel better once my Molekule is up and running at my workplace. It's comforting to know that I can feel myself again and also feel safe in my workplace. I highly recommend this!