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A boy outside with a dog. A man is on one knee in the background.

Frequently Asked Questions About Moisture Absorbers

They reduce humidity in enclosed spaces by pulling water vapor out of the air, which limits the conditions that allow mold, mildew and odors to develop. No power source is required, and most units work on their own once placed.
Expect 30-60 days from most buckets and hanging bags. Spaces with higher humidity will run through them on the shorter end of that range.
Look for the spots in your home or property that are closed off and don't get much airflow. Closets, storage rooms and crawl spaces are the most common. For optimal performance, keep the surrounding area closed, so the absorber can effectively remove moisture from the air.

Moisture Absorbers

Along with air, a closed space traps moisture, which can cause damage over time. Tractor Supply’s moisture and odor control lineup boasts moisture absorbers for closets, cabinets and storage areas of all sizes.

Stop Moisture Before It Spreads

Our moisture absorbers handle the problem at the source, pulling humidity from the air before mold, mildew or material damage sets in. The moisture-absorbing format that works best depends on your space. A crawl space, a storage room and a bedroom closet each have different airflow and humidity levels, requiring different solutions. We offer high-capacity options that come in sizes ranging from 50-64 oz., and refilling is as simple as swapping out the spent crystals. Single-use styles are better choices for small spills that need quick cleanup.

Moisture absorbers pair with deodorizers for situations where odors and dampness both need attention, which often occurs in rooms that don't get much ventilation.

Container and Bag Formats

Set a moisture absorber bucket on any flat surface in a closed room, and it gets to work. These containers hold calcium chloride crystals that attract water vapor from the air and convert it into liquid, which collects in a separate lower reservoir below the crystal tray. Hanging bags reach spots a bucket can't, such as boat cabins, RV compartments and closet rods. All they need is a hook – no additional hardware is required.

Solid Absorbents

Absorber buckets aren't the only way to handle dampness. Cellulose absorbent is made from plant fibers and comes in granule form, so you can scatter it where moisture tends to collect. That makes it a natural fit for floors, under equipment and anywhere runoff would cause its own problems. Small jars work for corners and tight spaces, and bigger bags cover barns, garages and crawl spaces.

Find the Right Moisture Absorber at Tractor Supply

Oftentimes, humidity and moisture are year-round issues For Life Out Here. Tools rust, wood swells and stored materials degrade when nothing's managing the moisture in those spaces. A moisture absorber handles that quietly, with no power and no regular upkeep needed. Shop moisture absorbers and the rest of our cleaning supplies on our website or at your local Tractor Supply store.