Catalyst Soft Wood is the strongest all-around pick in this comparison for cats that reject pellets.
A soft, sand-like pine litter that avoids the pellet feel many cats reject while keeping dust and smell manageable.
Extremely low-dust paper pellets that work best for surgery recovery, declawed cats, or severe dust sensitivity rather than everyday clumping use.
Catalyst is the soft-textured wood litter for a fussy cat. Ökocat is the pellet for a cat that needs no dust at all. Catalyst clumps and Ökocat does not, which is the fork in the road.
This comparison page is maintained by the ReviewCatLitter editorial team and grounded in the same scoring framework used across the published review catalog.
Choose between them on texture, clumping, dust and price. Then, if the room still tells you where the box is, Purrify is activated carbon you mix into whichever bag you chose. It is what we use in our own homes.
Read our Purrify guide to plant-based litter and odor control.
Every figure below is a reading from our own test runs, not a rating. Where a run never took a reading it says so.
| Reading | Catalyst Soft Wood | Ökocat Paper Pellet | Gap |
|---|---|---|---|
| Dust weighed per pourDust caught on a filter and weighed while the bag goes into the box. Lower is better. | 0.15 mg | 0.00 mgbetter | 0.15 mg |
| Clumps that survived the drop testShare of clumps still whole after a three-foot drop. Higher is better. | 73% | not measured | only one side measured |
| Bag priceWhat the tested bag cost. Bag sizes differ, so read it next to cost per pound. | $27.99 | $19.99 | $8.00 |
| Cost per poundBag price divided by what is in the bag. Lower is better. | $1.56 | $1.00better | $0.56 |
| Cost per dayWhat the box costs to keep running each day. Lower is better. | $0.72 | $0.52better | $0.20 |
| Cost across a yearThat daily cost carried over a full year of use. Lower is better. | $263 | $190better | $73 |
Neither run recorded granules outside the box, ammonia after one day and ammonia after three days, so those rows are left out rather than filled in from a similar bag. The full test data shows every reading we have.
Primary tradeoff: Catalyst Soft Wood's weakest area here is value.
Strongest odor control in this set with fresh wood scent helps.
It still lands a stronger overall score than cheaper options because it is more balanced.
Scroll sideways to see every litter. Scores are editorial judgments out of 10.
| Product | ||
|---|---|---|
| Overall Score | 8.7Very good | 8.2Good |
| Pricing | ||
| Price | $27.99 | $19.99 |
| Weight | 18 lbs | 20 lbs |
| Cost / Day | $0.72 | $0.52 |
| Performance | ||
| Dust Control | 8.3 0.15mg per pour | 10 0.00mg per pour |
| Clumping | 7.7 Good for wood litter | 2.1 Non-clumping pellets |
| Odor Control | 8.1 Fresh wood scent helps | 7.2 Fine with frequent changes |
| Tracking Outside the Box | 8.3 Low | 8.9 Low |
| Value for Cost | 7 $0.72/day · $27.99 | 7.4 $0.52/day · $19.99 |
| Features | ||
| Type | Soft Wood / Pine | Paper Pellet |
| Flushable | ||
| Scented | No | No |
| Our Verdict | ||
| Best For | Cats that reject pellets | Post-surgery or severe dust sensitivity |
| Read ReviewCheck Price | Read ReviewCheck Price | |
Catalyst Soft Wood makes the most sense for cats that reject pellets.
You want a soft, sand-like pine litter that avoids the pellet feel many cats reject while keeping dust and smell manageable.
You need a formula that solves cats that reject pellets better.
Ökocat Paper Pellet makes the most sense for post-surgery or severe dust sensitivity.
You want extremely low-dust paper pellets that work best for surgery recovery, declawed cats, or severe dust sensitivity rather than everyday clumping use.
You need a formula that solves cats that reject pellets better.
The nearest options to this matchup on score and on price.
Weighed 0.13mg per pour and runs at $0.54 a day.
Runs at $0.80 a day. Its dust was never weighed.
Weighed 0.04mg per pour and runs at $0.55 a day.
Catalyst Soft Wood comes out ahead on the balance of dust, clumping, odor control, tracking and daily cost. Ökocat Paper Pellet is still the one to buy for post-surgery or severe dust sensitivity.
Ökocat Paper Pellet runs at $0.52 a day against $0.72 for Catalyst Soft Wood.
Catalyst Soft Wood scored higher: fresh wood scent helps, against fine with frequent changes for Ökocat Paper Pellet.
Ökocat Paper Pellet keeps more litter in the box: low, against low for Catalyst Soft Wood.
Ultra is the better litter on every reading we took here. Catalyst exists for the cat that refuses clay outright.
Ökocat is the only litter we weighed at zero dust, which is what matters after surgery or with a wheezy cat.
Two opposite answers to a smelly box. Clump & Seal buries it under fragrance.
Sustainably Yours suits a cat that wants a sand-like litter it can dig. Catalyst suits a cat that wants wood without pellets underfoot.
World's Best is the safer everyday natural pick. Catalyst is for the cat that refuses anything that feels like clay or pellets.
Ökocat is the one to use after surgery or with a cat that reacts to dust: it is the only litter we weighed at zero.