Beaphar Odour Killer with orchid scent, 400 g is a mineral-based granule for cat litter boxes containing friendly bacteria, enzyme blockers and fragrance. According to the manufacturer, it doesn't just mask odour but breaks down its source: the bacteria process organic matter, and the enzyme blockers slow the formation of ammonia from urine. The recommended dose is 20 g per standard box, which lasts about a week for one cat; a 400 g pack lasts about 3 months. Sprinkle it under the litter or on top. It works with any litter but doesn't replace daily scooping.
What it is and who makes it
Beaphar is a Dutch company that makes veterinary and pet-care products. Odour Killer is its range of litter box odour removers. The orchid version has a soft floral scent, and the base is mineral granules carrying the bacteria and enzyme inhibitors.
How it works
| Component | Job |
|---|---|
| Friendly bacteria | Break down the organic matter that causes odour |
| Enzyme blockers | Slow the conversion of urea into ammonia |
| Fragrance | A soft orchid scent |
| Mineral base | Carrier for the active components |
How to use it
- Wash and dry the litter box.
- Sprinkle about 20 g of granules on the bottom and add litter on top, or sprinkle them over fresh litter already in the box.
- Scoop clumps and solids every day.
- Add granules a few more times if needed — this extends the life of the litter.
- Replace the litter completely as its instructions say, adding a new dose of granules each time.
Pros
- Tackles the cause. Bacteria and enzyme blockers reduce odour formation rather than just masking it.
- Economical. 20 g a week; a pack lasts about 3 months.
- Works with any litter. Clumping, absorbent or wood.
- Extends litter life. The litter stays fresh longer.
- Soft scent. A gentle orchid fragrance.
Cons and what to keep in mind
- Doesn't replace cleaning. Clumps and solids still need removing daily.
- Not every cat likes the scent. Sensitive cats may be wary — introduce it gradually and watch their behaviour.
- For the box, not for stains. Marking and puddles outside the box need an enzyme cleaner.
- Costs more than basic deodorisers. But usage is low.
Why the box smells even when it's cleaned
Odour comes from ammonia and breakdown products that build up in the litter, scratches in a plastic box and its seams. If the box smells strongly, check how often you change the litter, whether an old scratched box needs replacing, and whether there are enough boxes (one more than the number of cats). A strong urine smell is sometimes linked to the cat's health, such as dehydration or urinary problems. On choosing a box and litter, read which litter box to choose and which cat litter is best.
If it's the flat that smells, not the box
If your cat marks or leaves puddles outside the box, granules won't help — you need an enzyme cleaner for the spots and to find the cause. A step-by-step guide is in how to get rid of cat urine smell, and the reasons for this behaviour in cat not using the litter box.
Who it suits
Cat owners in small flats, multi-cat homes and anyone wanting to make litter last longer. It pairs well with wood litter — see our AnimAll Lavender review. Other products are in stain and odour removers.
Verdict
Beaphar Odour Killer is an economical litter box additive that reduces odour formation with bacteria and enzyme blockers and extends litter life. It doesn't replace daily scooping or solve marking, but paired with a good litter it noticeably freshens the box.
Frequently Asked Questions
How much should I add?
About 20 g per standard box, which lasts roughly a week for one cat.
How long does a 400 g pack last?
According to the manufacturer, about 3 months for one cat.
Which litter can it be used with?
Any: clumping, absorbent or wood.
Are the granules safe for cats?
The product is made for cat litter boxes. If your cat starts avoiding the box, remove it and talk to your vet.
Will it help with marking?
No, it's for the litter box. Marked spots should be treated with an enzyme cleaner.
Can I change the litter less often?
It can keep the litter fresh longer, but change it as the litter's instructions say and whenever it smells.



