Will this be dangerous for my house cat?

Not sure but would have thought it would be fine it’s certainly less toxic than other similar products I have used

Can this be sprayed onto carpet and upholstery?

I've not needed to spray upholstery and my floors are hardwood and tiled. I have though sprayed rugs without any ill effects or stains. This spray is completely odourless and clear. I find it most effective on tiled floors. At the start I was spraying certain areas twice weekly (bathroom/kitchen/utility) but now I find that it is effective for about a week or a little more between sprays. You don't need to saturate areas with the stuff - a light misting will do fine. A 500ml bottle lasts me about 6 weeks (I found 5 Litre ones much cheaper and got that after the first 500ml one) When I started using the spray I was finding dead ones about 3 each day now I'm getting only 2 in a month! If you know where they are coming from then you can stop them completely. I live in a block of flats where they could be coming from beside above or below me so I don't know the source. Rest assured that this spray works great and you're not wasting your money - but be patient.

Did kill book lice thanks ?

It killed the silverfish and prevented more from coming into the house, but i dont know about book lice.

Does this come with spray nozzle

Hi there, It comes as shown in the picture. Brilliant stuff, the only product that worked for me.

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Karlsten Silverfish Killer Spray Fast Effective Quality Silverfish Killer 500 ml Non staining

Karlsten Silverfish Killer Spray Fast Effective Quality Silverfish Killer 500 ml Non staining

Product ID: 209600609

Details

Brand
Karlsten
Item form
Spray
Liquid volume
500
Specification met
HSE
Target species
Insect Bug

⚡Fast-acting formula

🧴Generous 500ml non-staining spray

🛡️Long-lasting protective barrier

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NZ$99

Duties & taxes included

In stock

Sold byAmazon New ZealandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚫🐜 Stop silverfish in their tracks—fast, clean, and lasting protection!

ODOR FREE COMFORT - Leaves no lingering smell, preserving your home’s freshness 🌿
BARRIER THAT LASTS - Creates a protective shield to keep pests away long-term 🛡️
TRUSTED UK QUALITY - HSE tested and approved for reliable, professional-grade pest control 🇬🇧
SAFE CLEAN APPLICATION - Non-staining formula suitable for multiple surfaces 🧴
INSTANT SILVERFISH ERADICATION - Kills silverfish on contact for rapid relief ⚡

Karlsten Silverfish Killer Spray is a UK-tested, HSE-approved 500ml solution designed to kill silverfish instantly and create a long-lasting barrier that prevents reinfestation. Its non-staining, odor-free formula is safe for use on various surfaces, making it an effective and convenient choice for maintaining a pest-free home.

Specifications

ASIN	B089MYTPPN
Best Sellers Rank	8,636 in Garden ( See Top 100 in Garden ) 16 in Indoor Insect & Pest Control Sprays 69 in Garden Sprayers
Brand Name	Karlsten
Country of Origin	United Kingdom
Customer Reviews	4.3 4.3 out of 5 stars (1,564)
Item Form	Spray
Liquid Volume	500 Millilitres
Manufacturer	lodi
Specification Met	HSE
Target Species	Insect,Bug

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