Instruct: Classify a review as either positive or negative.
Query: Be prepared for tons of Maintenance

I used this humidifier throughout the winter season and today I threw it away. The wheels were very cheap and fell off many times. The filters/wicks last anywhere from a week to 20 days. You have to add Anti-bacterial and Anti-scale solution to the water every time you fill the tank. If you don't, you'll have a foul stink in a matter of days.I've switched to a smaller ultrasonic version. So far I'm much happier with the results. This Holmes model sucks! It requires way too much maintenance and the cost for filters and water treatment is ridiculous.