Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Short life span

After throughly researching and taking the recommendation of consumer reports we purchased this humidifier. We had a good run for two months, although the humidistat was not accurate. Then the trouble started...we changed the filters, maintained it properly. When the humidifier was turned off or stopped when the humidity level reached it's desired level the unit slowly drains all the water out from the bottom. We have been unable to get the unit replaced or repaired.