Skip to content
Purrify - Premium Activated Carbon Cat Litter Additive - Home
Science & Technology

Activated Carbon vs. Baking Soda Which Actually Eliminates Odor?

We broke down the molecular science to find out if your grandmother's fridge deodorizer can really handle the litter box.

Close up of high quality activated carbon granules

Figure A: The porous structure of activated carbon

The 30-Second Verdict

  • Activated Carbon completely traps and locks away odors using millions of micropores, performing 10-15x better in heavy-duty scenarios.

  • Baking Soda only neutralizes acidic odors (like urine) but fails to trap organic smells or moisture effectively.

  • Winner? Carbon. It's why gas masks use carbon filters, not baking powder.

Every cat parent has stood in the aisle debating between the $2 box of baking soda and the specialized carbon deodorizer. Is carbon just marketing hype, or is it actual science?

The Science of Smell

To understand the winner, we have to look at how they fight odor. They work in fundamentally different ways.

Activated Carbon: The Sponge

Works by Adsorption. Think of it as a molecular sponge with millions of tiny pores that physically trap and lock odor molecules inside, preventing them from escaping back into the air.

Baking Soda: The Neutralizer

Works by pH Neutralization. It's a base that reacts with acids (like urine). It creates a chemical reaction to turn the acid into a salt, reducing the smell.

Microscopic view of activated carbon pores

Magnified: The Carbon "Pore" Network

Head-to-Head Comparison

Feature
Activated Carbon
Baking Soda
Odor Trapping
Excellent (Adsorption)
Poor (Masking Only)
Moisture Control
High Absorption
Low Absorption
Longevity
30+ Days
5-7 Days
Scent
Odorless
Odorless
Feces Odor
Highly Effective
Ineffective
Urine Odor
Effective
Highly Effective

The Winner

Activated Carbon

There is simply no contest. While baking soda is a cheap quick-fix for a fresh stain, activated carbon is a long-term air filtration system for your litter box.

10x Surface Area

One gram of carbon has the surface area of a football field.

Locks Smells

Doesn't just cover them up; it permanently removes them.

Safe & Natural

Made from coconut shells or wood, 100% biodegradable.