Product review (4 stars): AKDY's customer service is great. I ordered 1 set and got another one ...
AKDY's customer service is great. I ordered 1 set and got another one (possibly by mistake) but they let me keep it. The vent works great. The only thing is that I am just not sure how efficient these filters are. The charcoal bids are large and loose. When you put the filters up, the bigs all go down to the bottom of the plastic container. I think it still needs work, maybe some lining in between the sectors of the filter to secure the bids.