Looks like good filters at a good price. If the odor reduction works - a month or so won't know for sure - then a great product. Otherwise, it's probably as good as the competition but costs a few bucks less. As mentioned in other reviews, the filters arrived squashed and bent. Sounds like a problem with packaging and storage. Heavy items were probably stored on wide, flat, unreinforced cardboard. This can be a problem with Revain, but a packaging structure might help.
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