Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Filters ok, but flimsy design

As far as I can tell, this filters the air to the specifications they list on the package. The problem I have is that they bend and ultimately get sucked down into the lower ductwork. For some reason, the cardboard frame on these filters just gives out. I have to use a coat hanger each time to hook and pull it back out. I've used many other brands and none have had this problem on this furnace.