I am 29 years old. I’ve suffered with allergies and asthma since I was a child. I’m allergic to dog, all pollen and mold. I have a dog that I even cuddle with. This air purifier has been a godsend. It’s easy to set up. You take it out of the box, take the filter out to remove the plastic and set up the app. It’s quiet and the auto mode works great. It’s got colored rings that quickly show you the quality of your air. I really put it to the test when I made grilled cheese and let my kitchen/living room get smokey from the frying pan. The censor said 900. The fan kicked on and within ten minutes the air was noticeably clear and the fan turned off. In the era of a global pandemic, I am happy to have this thing around.