DAMP Rid · Fabric Protection Treatment Sprays
DampRid Moisture Absorber with Activated Charcoal
Lower concern. Moisture absorber, not a typical PFAS application.
DampRid is a calcium chloride desiccant with activated charcoal. No PFAS-typical coatings or water-resistant treatments. No brand claims or third-party verification available.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Calcium chloride desiccant, activated charcoal
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
Category baseline
furniture is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
The full breakdown
What it's made of and why it matters
DampRid's core active ingredient is calcium chloride, a hygroscopic salt that absorbs moisture from air and converts it to liquid brine over time. The activated charcoal component is included for odor adsorption. Calcium chloride itself is food-grade in many applications (used as a food additive) and carries low oral toxicity; activated charcoal is inert and non-toxic. The hazard profile is tied to the brine liquid that forms as the product works, not the solid ingredients themselves.
The brand's record and disclosure
DampRid (SC Johnson subsidiary) does not publicly advertise PFAS testing or a formal PFAS avoidance stance, consistent with the broader desiccant category where PFAS is not a typical application concern. The brand provides basic safety data sheets listing calcium chloride as the active component. No recalls or toxicity incidents specific to DampRid moisture absorbers have been reported in the public record. Product labeling includes warnings about skin/eye contact with the resulting brine liquid.
How it compares in its category
Calcium chloride desiccants are a standard, well-established moisture control method used in basements and closets. They are safer than some older silica gel products that could release crystalline silica dust if containers crack. Alternatives like molecular sieves or rechargeable electric dehumidifiers exist but are costlier. DampRid is competitively priced and chemically transparent compared to opaque gel products.
If you buy it
Place containers away from direct contact with skin, fabrics, or wood finishes, as the brine liquid can be corrosive and cause damage. Replace or empty the container when it becomes saturated (typically every 2-4 months depending on humidity). Do not ingest the brine or allow contact with eyes. Ensure adequate ventilation in the storage area to allow moisture to be absorbed into the product, not re-deposited on surfaces. Keep out of reach of children and pets.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Brine liquid corrosivity (calcium chloride solution)
As calcium chloride absorbs moisture, it forms a caustic brine liquid that can corrode metal surfaces, damage wood finishes, and cause skin/eye irritation. This is the primary handling hazard; documented in product warnings but manageable with proper placement and containment.
Skin and eye irritation from direct contact
The brine solution can irritate skin and cause ocular damage if splashed into eyes. Risk is low under normal use (product is contained) but elevated if containers leak or are mishandled.
Off-gassing or inhalation hazard
Calcium chloride and activated charcoal do not emit volatile organic compounds or respiratory irritants at room temperature. No inhalation hazard is documented for this product class.
Heavy metals or toxic residues in activated charcoal
Activated charcoal used in consumer products is typically food-grade or air-purification grade and is not known to leach heavy metals. DampRid does not disclose specific sourcing or purity testing, but no contamination has been publicly reported.
Mold or bacterial growth in damp product container
As the product absorbs moisture and sits in humid conditions, the moist interior could theoretically support microbial growth if not replaced regularly. Practical risk is low because the high salt concentration (brine) is inhospitable to most pathogens, but extended storage in unsealed containers should be avoided.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 78% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
More fabric protection treatment sprays grades
How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.