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Arm & Hammer Fragrance Free Refillable Moisture Absorber and Odor Eliminator 14 oz. Tub
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AI Verdict
A 14-ounce fragrance-free, refillable tub that attracts and traps excess moisture to eliminate musty odors in small, enclosed spaces without electricity.
This 14-ounce fragrance-free absorber is a situational fit for targeted moisture and odor issues in small, enclosed spaces. Its portable nature and lack of electrical requirement make it convenient for areas like closets or under sinks, but its limited capacity and variable duration mean it won't solve widespread humidity problems.
If you need to treat larger areas or require faster, more consistent moisture removal, look for an electric dehumidifier with a higher pint capacity.
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Pros
- Attracts and traps excess moisture, eliminating musty odors rather than masking them
- Refillable design allows for continuous use with replacement crystals
- Operates without requiring electricity or batteries
- Portable 42-ounce weight (including product and packaging) allows placement in various small areas
- Fragrance-free formulation avoids adding scents to the environment
Cons
- Duration of effectiveness, stated as up to 60 days, varies significantly based on temperature and humidity, sometimes lasting only 3 weeks in very damp conditions
- Takes approximately one week to visibly start collecting water and for odor elimination to become noticeable
- The internal plastic barrier can dislodge if the tub is handled roughly, preventing proper moisture absorption
- Not designed for large open rooms, best suited for small, contained areas
Dimension Scores
Effectively attracts and traps excess moisture to eliminate musty odors in small, targeted areas, but its 14 oz capacity and variable 60-day duration limit its scope.
Requires only removing a lid, peeling a foil cover, and replacing the lid, with no electricity or complex setup.
The simple plastic tub design is functional, but some users report the internal plastic piece can dislodge, affecting performance.
Operates entirely without electricity or batteries, making it maximally energy efficient.
Best For
- Small closets with persistent musty smells
- Laundry rooms or mud rooms experiencing excess humidity and stagnant air
- Bathrooms or areas under sinks prone to dampness
- Spaces with pet odors, like a room housing lizards or a dog bed area
Not Recommended For
- Large, open living areas or basements requiring substantial dehumidification
- Situations demanding immediate odor elimination or moisture reduction
- Environments where precise humidity level control is necessary
Watch Out For
- The internal plastic piece that holds the beads can fall down if the product is tossed around, making it unable to absorb moisture effectively.
- While advertised for up to 60 days, users report it can be full of water in as little as 3 weeks in highly humid environments.
- It takes about a week of placement before you start seeing collected water and noticing a difference in odors.
Full Specifications
| Brand | Arm & Hammer |
| Color | 3 Ct |
| Capacity | 14 Liters |
| Material | Plastic |
| Item Weight | 42 Ounces |
| Tank Volume | 14 Liters |
| Special Feature | Portable |
| Product Dimensions | 22"D x 25"W x 46"H |
| Included Components | 3 Mositure Absorbers |
| Recommended Uses For Product | Residential |
| ASIN : | B08XBDBW2H |
| Manufacturer : | WM Barr |
| Item model number : | FGAH14R3 |
| Product Dimensions : | 4.06 x 6.88 x 5.63 inches; 2.63 Pounds |
| Date First Available : | February 24, 2021 |
What Buyers Say
This Arm & Hammer moisture absorber is a straightforward solution for small, damp spaces, but don't expect instant results or a full two months of action in very humid conditions. Many users find it genuinely eliminates odors, not just covers them up, which is a big win for pet owners and those with perpetually stuffy closets. However, a recurring complaint is the inner plastic barrier dislodging, which stops the crystals from working properly. It also takes about a week to see any real water collection, so patience is key.
“I put these in my basement bathroom and it actually works, but that little plastic thing inside totally fell down after a week and I had to fish it out, so annoying.”
Common Praise
- Effectively eliminates musty odors in small, enclosed spaces
- Simple setup requires no electricity or batteries
- Refillable design makes it a sustainable option
- Works well in areas like closets, cars, and bathrooms
- Fragrance-free nature is appreciated by those sensitive to scents
Common Complaints
- The internal plastic piece can fall down, rendering the product ineffective
- Duration of effectiveness is often less than the advertised 60 days in highly humid environments
- Takes about a week for visible moisture collection to begin
- Some users received incorrect scents or pack quantities when ordering
Ownership Tips
- The crystals start dissolving and collecting water from the bottom up, so you might not see much action at first.
- In very humid areas, you'll be emptying and refilling this way more often than every 60 days.
- The tub is small enough to tuck away behind a toilet or in the corner of a closet without being noticeable.
- The collected water is surprisingly dark and murky, indicating it's pulling a lot of impurities from the air.
- You'll know it's time to refill when the musty smell starts creeping back, not necessarily when all the crystals are gone.
Frequently Asked Questions
How long does one 14 oz tub last?
The tub offers long-lasting freshness for up to 60 days, but the actual duration will vary based on the temperature and humidity levels in your specific environment. Some users report it filling with water in about 3 weeks in very humid spaces.
How does this moisture absorber work?
It works by attracting and trapping excess moisture from the air using crystals, which then dissolve into a liquid. This process eliminates musty odors without masking them, acting like a non-electric dehumidifier.
Is this product safe to use around pets?
The product is fragrance-free, and many users place it in areas with pets, including rooms with lizards or German Shepherds, to combat odors. Always follow label directions and keep out of reach of children and pets.
Can I use this in my car?
Yes, users have reported success using it in cars to remove moisture and musty smells, especially after incidents like leaving a cooler drain open. Its portable nature makes it suitable for vehicle interiors.
How do I dispose of the collected water?
Once the moisture-absorbing crystals have fully dissolved and the tub is full of water, you simply discard the collected water, typically by pouring it into a toilet, and then refill the tub with new crystals.
Buying Guide
When you're looking at moisture absorbers like this, you need to think about where you're putting it and how much moisture you're actually dealing with. These aren't whole-house dehumidifiers; they're for tackling specific damp spots. You're trading off the convenience of no electricity for a more localized, slower effect. Don't expect it to dry out a flooded basement, but it can definitely help with that lingering damp smell in a closet.
Capacity (14 oz)
This refers to the amount of moisture-absorbing crystals in the tub. A 14-ounce tub is designed for smaller, enclosed spaces, similar to how a small sponge can only soak up so much water before it's full. More ounces generally mean it can absorb more moisture before needing a refill.
Fragrance-Free
This means the product won't add any scent to your space. If you're sensitive to perfumes or just prefer a neutral environment, this is crucial. It's like choosing unscented laundry detergent – it cleans without leaving a smell behind.
Refillable
A refillable design means you only buy the plastic tub once and then purchase crystal refills. This is more economical and creates less plastic waste over time, similar to buying a reusable water bottle and refilling it instead of buying new disposable ones.
Alternatives
If this 14-ounce tub isn't cutting it, look for larger capacity moisture absorbers (e.g., 2lb buckets) or consider an electric dehumidifier with a specific pint removal rating for larger or more severely damp areas.



