Best Cat Litter for Odor Control | Purrify Additive

Multi-Cat Pouch

Name: Purrify 120g Single Bag
Brand: Purrify
SKU: purrify-120g-onetime
Price: 24.99 CAD
Availability: InStock

120g · The multi-cat household size

Multi-cat households, foster parents, or anyone who's given up counting litter boxes.

Choose how you want it

Autoship$49.993 bags delivered every 3 months. Free shipping to most areas. Cancel anytime.≈ $16.66/month

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30-day money-back guarantee

Features

7+ days freshness per application
Best value per gram
Flexible dosing (use more, lasts longer)

Ideal For

The Purrify Multi-Cat Pouch is a 120-gram bag of coconut shell activated carbon granules built for multi-cat households or larger litter boxes. With 2.4 times the capacity of the Standard Pouch, it is the economical choice for homes where litter boxes see heavy use throughout the day. The granules adsorb ammonia and other odor-causing molecules on contact, keeping litter fresh for seven or more days between applications.

Like every Purrify product, the Multi-Cat Pouch is 100% fragrance-free, dye-free, and safe for cats of all ages, including kittens and senior cats with health sensitivities. The quarterly autoship plan keeps it coming on a regular schedule, with free shipping to most areas.

How to use

Three steps, about thirty seconds

Open the bag

No special litter, no new routine. Purrify granules work with whatever litter your cat already uses.

Sprinkle 2-3 tablespoons

2-3 tablespoons of Purrify granules per litter box. Sprinkle on fresh litter, mix gently.

Top up when needed

Top up whenever the box starts giving off a smell again - no fixed schedule.

The Secret Sauce

Why Coconut Carbon Works So Well

Activated coconut shells contain millions of microscopic pores that physically attract and trap odor molecules.

Source: EPA Indoor Air Quality

Micro-Pore Technology

Large internal surface area captures ammonia on contact.

Fragrance-Free Formula

Neutralizes odor without adding perfumes to your home.

Coconut-Based Carbon

Made from natural coconut shell carbon granules.

Expert Insight

Activated carbon's highly porous structure gives it an exceptional surface area - allowing it to trap and hold volatile organic compounds (VOCs) and odor molecules at the molecular level, rather than simply masking them.

Dive Deeper Into The Science Carbon vs Baking Soda

Scientific diagram showing activated carbon molecular structure with micropores that trap odor molecules

Microscopic View

Porous structure traps ammonia molecules permanently.

Want the full story?The science of activated carbon How Purrify works Why litter boxes smell like ammonia

How long will each size last?

Calculate how long each size will last

Number of cats:	Litter changes per week:	15g Trial	Standard Pouch	Multi-Cat Pouch
1 Cat	Weekly	1 week	30 days	2+ months
2 Cats	2x per week	3-4 days	2 weeks	4-5 weeks
3 Cats	3x per week	2-3 days	1-2 weeks	3 weeks

You've seen the science. You've heard the testimonials. You know which size fits. There's only one thing left to do...

Honest Comparison

Purrify vs Common Alternatives

Most odor solutions only cover up the problem. Here is how they actually compare when it comes to eliminating litter box smell at the source.

Method	Traps Odor at Source	Fragrance-Free	Lasts 7+ Days
Baking Soda Absorbs some odor but saturates quickly. It cannot trap ammonia molecules the way porous carbon does, so the smell returns within hours.	Partial	Yes	No
Scented Litter Adds fragrance on top of the smell rather than removing the source compound. Many cats dislike strong perfumes, and the ammonia is still there underneath.	No	No	No
Enzyme Sprays Liquid-based and needs reapplication after every use. Does not work preventatively in dry litter because enzymes require moisture to break down compounds.	Partial	Yes	No
Activated Carbon (Purrify) Physical adsorption traps odor molecules inside millions of microscopic pores permanently. No fragrance needed because the ammonia is locked away at the source.	Yes	Yes	Yes

Baking Soda

Absorbs some odor but saturates quickly. It cannot trap ammonia molecules the way porous carbon does, so the smell returns within hours.

Traps Odor at Source: Partial
Fragrance-Free: Yes
Lasts 7+ Days: No

Scented Litter

Adds fragrance on top of the smell rather than removing the source compound. Many cats dislike strong perfumes, and the ammonia is still there underneath.

Traps Odor at Source: No
Fragrance-Free: No
Lasts 7+ Days: No

Enzyme Sprays

Liquid-based and needs reapplication after every use. Does not work preventatively in dry litter because enzymes require moisture to break down compounds.

Traps Odor at Source: Partial
Fragrance-Free: Yes
Lasts 7+ Days: No

Activated Carbon (Purrify)

Physical adsorption traps odor molecules inside millions of microscopic pores permanently. No fragrance needed because the ammonia is locked away at the source.

Traps Odor at Source: Yes
Fragrance-Free: Yes
Lasts 7+ Days: Yes

Activated carbon is the only method on this list that physically removes odor molecules from the air inside your litter box. That is why water treatment plants, air purifiers, and now cat parents across Canada rely on the same natural material as an odor eliminator.

see our 2026 pick for odor control

Good to know

Questions cat owners ask us

How much do I use per litter box?

2-3 tablespoons of Purrify granules per litter box. Sprinkle on fresh litter, mix gently. Top up whenever the box starts giving off a smell again - no fixed schedule.

Is it safe if my cat ingests some?

Yes. Purrify is made from food-grade coconut shell carbon, the same material used in drinking water filters. It passes through harmlessly.

Which litters does it work with?

All of them. Clay, clumping, crystal, tofu, pine - Purrify is a loose granule additive you sprinkle on top of whatever your cat already uses. It does not interfere with clumping or scooping.

How long does a 120g bag last?

A little over 2 months per cat for a typical one-cat household. With more cats and more boxes it gets used faster, which is exactly what the bigger bag is for.

Can I cancel or skip the autoship?

Yes. Cancel, skip, or change your subscription anytime from your account. No fees, no phone calls, no hassle.

What if it doesn't work for my litter boxes?

Every Purrify order is backed by a 30-day money-back guarantee. If you don't love it, you get a full refund - no questions asked.

Still have questions? See the full FAQ

Just one cat?

The 50g Standard Pouch is the right fit for a single litter box - about a month of odor control per cat.

See the Standard Pouch

Still skeptical? Try the 15g for $4.76, shipping included.Still skeptical? Try the 15g for $7.99, shipping included.

Try the 15g

Why Coconut Carbon Works So Well

Activated coconut shells contain millions of microscopic pores that physically attract and trap odor molecules.

Micro-Pore Technology

Large internal surface area captures ammonia on contact.

Fragrance-Free Formula

Neutralizes odor without adding perfumes to your home.

Coconut-Based Carbon

Made from natural coconut shell carbon granules.

Expert Insight

Number of cats:

Litter changes per week:

15g Trial

Standard Pouch

Multi-Cat Pouch

1 Cat

Weekly

1 week

30 days

2+ months

2 Cats

2x per week

3-4 days

2 weeks

4-5 weeks

3 Cats

3x per week

2-3 days

1-2 weeks

3 weeks

Method

Traps Odor at Source

Fragrance-Free

Lasts 7+ Days