Product review (1 stars): FILTER DOES NOT FIT - LOOSES ITS SHAPE AFTER 15 DAYS
We had hoped that this generic filter would work with our Honeywell HCM350W Germ Free Cool Mist Humidifier, White.  The filter lost its shape and would not fit in the humidifier after installation (15 days).  Minerals from the water collected in one section of the filter because it had lost its shape . . . the filter looked like it was manufactured and cut incorrectly (one side was longer).  We were disappointed with the purchase and it certainly did not meet our expectations.  We're sorry that we did not look at the reviews before purchasing.  Of course, Amazon stood behind their product and immediately refunded the purchase price.  We immediately purchased the Honeywell product.  You will probably be disappointed with this filter.