Product review (1 stars): Beware of Misleading Seller
Like some others - I received a BestAir brand instead of Bemis brand. It was ordered from the seller 'Buy-it-now-store'. I cannot vouch for the other sellers.

It lasted less than a month, turned rusty brown along the top within days and stank upon initial use.  I went back on Amazon and ordered some Essick Air Products brand replacements (not realizing I was buying from the same seller). I had paid $7.89 for the Bemis brand the first time and $9.99 for the Essick the second time and received the same BestAir brand filters. I will not be ordering from 'Buy-it-now-store'