Not in original packaging - here's why that's a problem
Unlike the product photo shown, the filters didn't come in the original 3M packaging (green box).  Instead, they arrived in a bag, loosely rolled up and bound with rubber bands.  Unfortunately, this isn't just a packaging issue -- the pleats are supposed to fit in between slats on the plastic filter holder, but since the filters had been removed from their original packaging many of the original folds had been destroyed.  The result is that it is very difficult if not impossible to properly fit these into the filter holder.
Rating: 2 stars