Bamboo charcoal has proven to be effective and efficient at absorbing odors and freshening the air in an organic way. I have used different brands for many places around the house for several years. Since I think it's the "bamboo charcoal" that matters, not the brand, I go with the ones, which are a fairly economical choice, every time I need more or a replacement. Kitchen (in my photo) that I have been using for more than 2 years. 2 years is generally recommended for replacement. I have also left them in the sun every month or two to reactivate the charcoal for long term use as directed. Anyway I like this one which is a bit smaller (and therefore lighter) compared to my old ones as it is lighter. hang and manage like. From my experience with them I know for sure that they just work. From the proposed options, I chose this one based on looks and price :)
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