Product review (3 stars): OK, I guess.  Maybe----
I guess these are OK.  They are not vacuum sealed, so I don't expect the "activated carbon" is still fully activated, but I have no analytical equipment to verify either way.  Either way, it would be easy enough to clean up some used filters, stick them in real vacuum bags, hang a label on them, and sell them, so I don't know that a vacuum seal is any guarantee either.  I don't know of these are LG products in the bag, but the label on them certainly is.  Really, I have no viable opinion one way or the other.  They do fit the filter holder in the fridge, so that's good.