The Smell You Stopped Noticing Is the One Visitors Notice First
The Smell You Stopped Noticing Is the One Visitors Notice First
5 stars
Rated 4.8/5 by 7,200+ Verified Cat Owners

The Smell You Stopped Noticing Is the One Visitors Notice First

A carbon and zeolite guard that sits under the litter and traps ammonia as it forms, instead of covering it with a scent that fades by the afternoon

ShieldCheck 60 days to try it. Full refund if the room smells the same.
StarFour Traps Ammonia, Not Masks It
StarFour Fits Any Tray Shape
StarFour Lasts a Full Month
StarFour 60-Day Money-Back Guarantee
Bormalite Litter Odour Guard
Bormalite Litter Odour Guard
Bormalite Litter Odour Guard
Bormalite Litter Odour Guard
Bormalite Litter Odour Guard
Bormalite Litter Odour Guard
Bormalite Litter Odour Guard
Bormalite Litter Odour Guard
Bormalite Litter Odour Guard
Bormalite Litter Odour Guard
Bormalite Litter Odour Guard
Bormalite Litter Odour Guard
Bormalite Litter Odour Guard
Bormalite Litter Odour Guard
Bormalite Litter Odour Guard
Bormalite Litter Odour Guard
Trustpilot 5 stars Rated 4.8/5 (7,200+ Reviews)

Bormalite Litter Odour Guard

€35,95
Carbon and Zeolite Guard
CheckCircle Sits under the litter and catches ammonia at the source rather than in the air
CheckCircle No perfume, which is what most cats object to in a scented litter
CheckCircle One guard covers a month of normal use for one cat
Low stock on the 3-month pack

Choose your option

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Best Value
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Free US shipping included
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60-Day Guarantee
Full refund if nothing changes
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Fits Any Tray
Open, hooded or top-entry
Profile
5 stars

"My sister walked in and did not ask about the cat, which had never once happened before"

Helen V.
Verified

Scent covers the smell for a few hours and then wears off, leaving both. This holds the ammonia in the carbon instead, so there is nothing to cover.

It sits under the litter and carries no perfume, so nothing changes underfoot. Cats that refuse scented litters generally take no notice of this at all.

About monthly for one cat, or every three weeks with two sharing a tray. The carbon fills up, which is the same reason a fridge filter gets changed.

Bormalite Litter Odour Guard

Bormalite Litter Odour Guard

€35,95

You Stopped Smelling It, Which Is Not the Same as It Being Gone

A nose adapts to a constant smell in a matter of days. Everyone walking in from outside has a fresh one, which is why they notice in the hallway

You Stopped Smelling It, Which Is Not the Same as It Being Gone

For Anyone Who Scoops Twice a Day and the Room Still Turns

You empty it, wash the tray, change the litter completely every week, and by Wednesday evening the room has that edge to it again

For Anyone Who Scoops Twice a Day and the Room Still Turns

Urine Has Almost No Smell Until Bacteria Get to Work on It

What you notice is ammonia released as urea breaks down, which is why the tray smells worse hours after it was used than at the moment it was

Urine Has Almost No Smell Until Bacteria Get to Work on It

Four Things That Separate This From a Scented Litter

What has to happen for a room to stop smelling rather than smell of two things

SealCheck
It Catches Ammonia at the Source.
Carbon and zeolite hold the gas as it forms under the litter, before it reaches the room.
SealCheck
No Perfume At All.
Nothing for a cat to object to, which matters because a cat that avoids the tray creates a much worse problem.
SealCheck
It Fits the Tray You Own.
Trim it to an open pan, a hooded box or a top-entry, without changing the setup your cat is used to.
SealCheck
One a Month, Not One a Day.
It works between scoops rather than needing a spray every time you walk past.
Four Things That Separate This From a Scented Litter

What Separates This From Everything Else in the Pet Aisle

Six things a scented litter, a deodorising spray or a covered box gets wrong

CLEAR THE AIR IN THAT ROOM
Bormalite Odour Guard
Bormalite Odour Guard
 Scented Litter or Spray
Scented Litter or Spray
Traps ammonia instead of covering it
No perfume for the cat to refuse
Works between scoops without daily effort
Fits open, hooded and top-entry trays
One guard lasts about a month
60-day money-back guarantee
CLEAR THE AIR IN THAT ROOM
5 stars Rated 4.8/5 by 7,200+ Verified Cat Owners

7,200+ Hallways Stopped Announcing the Cat

Notes from owners who had already tried every litter on the shelf.

Helen V., 57
5 stars
My Sister Did Not Mention the Cat
She has commented on the smell every single visit for four years, usually before she has her coat off. This time she said nothing, and I realised halfway through the evening.
Helen V., 57 Verified Buyer
Ronald T., 64
5 stars
Two Cats, One Tray, One Guard
With two of them sharing I was changing the whole tray twice a week and it still turned by Thursday. Now I change it weekly like normal and the room holds.
Ronald T., 64 Verified Buyer
Sandra M., 50
5 stars
He Went Back to Using the Box
I had tried a heavily scented litter to fix the smell and he started going behind the sofa instead. No perfume in this, and he went straight back to the tray.
Sandra M., 50 Verified Buyer
Owen P., 59
5 stars
It Fitted the Hooded Box
A covered tray keeps the smell in until you open the flap, and then it all comes out at once. Trimmed one of these to fit the base and that stopped.
Owen P., 59 Verified Buyer
Jeanette L., 62
5 stars
I Stopped Buying the Spray
There was a can beside the tray that I used every time I walked past. It has been in the cupboard since March.
Jeanette L., 62 Verified Buyer
60-Day Guarantee
Free US Shipping
Fragrance Free
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Why a Boarding Cattery Never Relies on Scented Litter

A room with twenty trays cannot be perfumed into smelling clean, so the people who run them deal with the ammonia itself and leave scent out of it

Why a Boarding Cattery Never Relies on Scented Litter
LIMITED RUN · WHILE STOCK LASTS
Let Someone Walk In Without Knowing You Have a Cat

Let Someone Walk In Without Knowing You Have a Cat

Here is what ships to you:
· Bormalite odour guards, one per month of normal use
· A trim guide for open, hooded and top-entry trays
· A 60-day money-back guarantee

CLEAR THE AIR IN THAT ROOMArrowRight
SealCheck Use it for 60 days. If the room smells the same, you get your money back.

Common Questions Before You Order

Straight answers for anyone who has tried every litter on the shelf.

How does it work? Plus
Carbon and zeolite sit under the litter and hold ammonia as it is released, so it never reaches the room. Nothing is added to the air.
Will my cat notice it? Plus
It sits below the litter and has no fragrance, so the surface underfoot is unchanged. That matters, because a cat put off by a scented litter will simply go elsewhere.
Does it fit a hooded or top-entry box? Plus
Yes. It trims to the base of any tray shape, and the guide in the box shows the three common layouts.
How often do I replace it? Plus
Monthly for one cat, roughly every three weeks for two sharing a tray, because the carbon fills up the way a fridge filter does.
Do I still scoop? Plus
Yes, daily scooping still matters. This deals with what scooping leaves behind, which is the part that builds through the week.
Is it safe around cats and children? Plus
It carries no fragrance and no added chemicals, and it sits under the litter rather than on top of it.
What if the room still smells? Plus
Use it for 60 days. If nothing has changed, contact support and you are refunded.
How fast does it ship? Plus
Orders leave the US warehouse within one business day, with free standard shipping.