How to Use Cat Litter Deodorizer: Arm & Hammer Purrifying Pak

Start with a clean box, then add the Pak

A litter deodorizer works best when it isn't trying to cover up an already soiled box. Scoop out clumps and solid waste first, then give the box a quick refresh before adding the deodorizer. The Arm & Hammer Purrifying Pak is designed to provide continuous odor protection for up to 90 days, but it needs to sit in a box that's already reasonably clean to do its job well.

Unlike powders you mix into the litter, the Purrifying Pak is a small pack that hangs on the rim of an open litter box using its "cat tail" design. For covered boxes, the pak can be placed inside. Because it has a universal fit, it works with any litter box style.

How to install the Purrifying Pak

1. Scoop and level the litter: Remove clumps and solid waste, then smooth the litter surface so the pak isn't buried or blocked.
2. Open the pak: Remove the pak from its packaging. The baking soda inside starts working once exposed to the air in the box.
3. Hang it on the rim (open boxes): Use the "cat tail" to hang the pak from the rim of an open litter box. Position it where your cat won't paw at it or knock it into the litter.
4. Place it inside (covered boxes): For covered litter boxes, set the pak inside the hood or on the rim, away from the litter surface and your cat's path.
5. Check monthly: The pak provides protection for up to 90 days. Mark the date you installed it and replace it when that window ends or if odors return sooner.

How much deodorizer to use

The Purrifying Pak is a pre-measured pack, so there's no scooping or guessing. Each pak is intended for one litter box. If you have multiple boxes, use one pak per box rather than splitting a single pak between them. The package includes 3 Fresh Scent paks, which gives you up to 90 days of coverage per pak when used as directed.

If you're used to powdered deodorizers, the adjustment is mental: you don't add more for a smelly box. Instead, address the source—scoop more often, change litter as needed, and replace the pak at the end of its 90-day window.

What the Purrifying Pak can and cannot fix

This deodorizer is a maintenance tool for everyday litter box odor control, not a rescue for a neglected box. It won't replace daily scooping, and it won't fix strong ammonia smells caused by infrequent cleaning. If your cat avoids the box or you notice persistent odor despite regular scooping, the issue may be litter type, box size, or a health problem—not a lack of deodorizer.

Because the pak relies on baking soda, it's a good fit for households that want continuous, low-effort odor control without adding scented powders to the litter. Cats with sensitive noses may prefer the unscented litter approach, so introduce the pak gradually and watch for any change in box habits.

Product facts for the Purrifying Pak

• Arm & Hammer Purrifying Pak Cat Litter Deodorizer: Utilizes baking soda to control litter box odors 24/7. Baking soda is the active ingredient, so the pak works passively as air moves through the box.

  

• Arm & Hammer Purrifying Pak Cat Litter Deodorizer: Comes with 3 Fresh Scent paks that provide continuous litter box odor protection for up to 90 days. One pak covers roughly three months, so a single package lasts about nine months per box.
• Arm & Hammer Purrifying Pak Cat Litter Deodorizer: Designed with a universal fit for any litter box; for open boxes, the "cat tail" hangs from the rim. You can use it with your existing box without buying a special litter system.

Common questions about litter deodorizer

Can I use the Purrifying Pak with a covered litter box?

Yes. The pak is designed for universal fit. For covered boxes, place it inside the hood rather than hanging it on an exterior rim.

How often should I replace the pak?

Replace it every 90 days or sooner if odors return. The package includes 3 paks, so one package lasts about nine months per box.

Will the scent bother my cat?

The paks are Fresh Scent. Some cats are sensitive to added scents, so monitor your cat's box habits after installing. If your cat avoids the box, remove the pak and consult your veterinarian.

Does the pak replace scooping?

No. It's an odor control aid, not a cleaning substitute. Continue daily scooping and regular litter changes.