Review on 🌬️ Holmes Group Odor Reducing Carbon Replacement Filters - Ultimate 4 Pack for Cleaner Air, Black, 4 Piece - 1 Pack by Brandon Barrett

It is smaller than the carbon filter that came with my filter. Does not sit tight when installed. I ended up leaving the old charcoal filter on top and slipping the new one underneath. Fixed, but otherwise the activated carbon filter moves. It comes with 2 tiny velcro straps which I think could help keep it in place but it wasn't worth the effort and there wasn't enough velcro for all 4 filters. I think this will work well enough, but not what I was hoping for.