Product review (3 stars): I'm not against replacing the filters sooner since I hate using it it when its starts to discolor
This filter is about 20% thinner than the original equipment filters. There's that much free space in the cage that holds the filter. I bought ones that were as thick as the cage, but they cost more than double the price. Since I also use a humidifier solution, hopefully, it would last more than half as long. I'm not against replacing the filters sooner since I hate using it it when its starts to discolor.