Product review (2 stars): Short filter life, costly and difficult to install
It functions well in providing moisture source for the humidifier and deodorize the room air. There are three reasons I gave it two stars. The first reason is the very short life of the filter. I only got a little over two weeks' life. The WEMO app still says 55% life remaining, yet the filter no longer wicks as the water level remains. This is how I found out in real life. When the filter wicks, I have to refill the water every two days. As soon as the interval lasts more than three days, I knew I have to change. The second reason is the cost. This is related to the filter's short life. $50 a month for filters is a little too much. The third reason is the difficulty in replacing the filter into the doors. The doors have several spikes that functions as holder. Unfortunately, the spikes are too close to the door edge that makes the filter difficult to slide in. I have to align the filters to the frame, engage the spikes, and then squeeze the filter very hard into the frame.  I don't like it very much, but I have no other choice for the wemo humidifier.