Product review (1 stars): Emitted a musty smell
I've been looking for a cheaper alternative to the Honeywell filters and thought I'd give these a try.  These have a rigid metal mesh surrounding them that help to provide a little more stability and visually the material looked to be the same.  But minutes after putting one in, the room filled with a musty smell, like wet newspaper.  I have a terrible sense of smell.  For the smell to be this strong to me it must have been quite strong.  We tried to live with it, hoping it'd dissipate but it kept getting worse.  I will be returning the item.  The search for a cheaper alternative continues...