I bought this humidifier for my 5 year old in December. We overall love the machine. It is a nice sized tank and covers a good surface area, and also has a great design and pretty colors. The LED lights are my kid’s favorite part! It initially worked well but then ended up building up algae too quickly.  I reached out to customer service and they were the best help! They took care of me and we are looking forward testing out our new humidifier.