My humidifier was a gift from a family member in 2020. I didn't use it until this winter and I am amazed at what I was missing. This is a great little air cleaner/moisturizer helper for me since I have asthma and live in an apartment that is really a little dusty..a lot dusty actually. I actually love this machine and my only feedback is that it doesn't last all day but that's alright too!! I love it! Recently I've tried adding sea salt to the water. It's even better!!!