I bought this item a month ago and so far so good! It has a filter in front of it and about two weeks ago the alert red light came on, asking to clean the filter. Which I did and removed it and washed it and let it dry before putting it back on. But the red light is still on requesting to clean the filter! It is annoying but it still cools down my room... Anyone has the same problem so I can have a peace of mind?