Comments 7

diy: kitty litter dehumidifer

This is a little trick suggested to me by my grandmother (they are full of such wisdom, right!?). Living on an island poses a threat to all my clothes and precious items subjected to high humidity all year round. When I first moved here and didn’t know a thing about protecting my items from this weather, I would constantly discover pieces of clothing in my closet with mold (yuck!). This is certainly not healthy.

I was talking to my grandmother one day and describing this problem, telling her I’m going through numerous Damp Rid packets every week trying to control the dampness in my closets (= lots of money). She knew a solution:  a cup of Arm & Hammer kitty litter. The litter provides a nice smell, and the “pellets” do not turn into water when grabbing the excess moisture from the air, so it’s essentially a product that never gets old, or used up. Perfect! A solution for my wallet and my closet.

So I’ve placed little cups and jars in my closets and have noticed a huge difference. One closet in particular holds all our scuba gear – this one seems to always be damp even if we dry everything in sun before returning it to store here. So I placed one of these economical dehumidifiers in there, and the dampness is gone.

I’m not sure why it has to be this particular brand, but I know it works and I don’t dare try anything else. The only improvement I made to the suggestion was adding a mesh screen on top, because it’s happened twice already that Evan has accidentally knocked the cup over in the closet, leaving a huge mess to vacuum up afterwards.

So I’m passing on my grandmother’s wisdom to you – in case you have similar problems year round, or just in the summer. Perhaps “pin” this for the future? And let me know what you think!

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Chelsea is a marine scientist in Puerto Rico. Her interests include invasive species ecology, fish biology and ecology and marine protected area management. She is a co-founder of the only field course coordination company in Puerto Rico - Isla Mar Research Expeditions.


  1. Does the litter have a smell? It's cool enough in FL to have the a/c off, but still pretty humid. Might have to try this out. Eric will probably think I'm nuts!


  2. cliffsandcanyons says

    I think it has to be that brand because of the Arm and Hammer Baking Soda. I do this smae thing only with pure baking soda and it works very effectively. i imagine that cat littler would be better at keeping in the moisture due to it's purpose and all. 🙂 I had never heard of using cat liter, but it's genius!


  3. Pingback: tips for island living | sea, field & tribe

  4. Pingback: more tips for island living | sea, field & tribe

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