How To Get Rid Of Dead Rat Smell, Mouse & Rodent Smells

First, let’s talk about live mice and rats. These creatures don't just scuttle about quietly — they leave their mark with an unmistakable musky, ammonia-like odour. The source? The oil on their fur, their constant urination, and the droppings they scatter wherever they go.

Rats leave behind a musky odour, sharp and sour, that worsens over time.

When they nest, they take the stench with them. Nests, usually hidden in basements, attics, or inside walls, become little hotspots of foul smells — droppings, food scraps, and urine. Over time, the smell becomes more concentrated and hard to ignore. That faint whiff you noticed? It’s only going to get stronger.

The stench of a dead rat 🐀

There’s no mistaking the smell of a dead rat.

A dead rat emits a powerful, decaying stench that lingers for weeks. Deal with it fast, as it'll only worsen with time.

Ideally, the rodent needs to be removed and the area cleaned. The smell will naturally dissipate over time.

However, when a rat or mouse dies, it's not just the physical presence of the carcass that causes the odour and smells in your home. Aside from that, sometimes you just can't reach it. 

The decomposition process releases gases such as ammonia, methane, and hydrogen sulfide, which cause the foul smell. These gases can permeate through walls, floors, and other surfaces, making it hard to pinpoint the source of the odour.

The size of the rodent and the temperature play a role. The larger the animal, and the higher the temperature, the longer the smell will last. On average, you’re looking at several weeks of misery unless you take action.

How carbon filters can help neutralise mouse and rat smells

Carbon filters are powerful when it comes to eliminating the smell rats or mice (whether dead or alive).

Carbon and activated charcoal filters work by trapping, and absorbing, the molecules that are responsible for bad smells. They trap them so the smell doesn't get emitted back into the room. 

Activated carbon has an incredibly porous structure, giving it a large surface area that can trap and hold a variety of organic molecules, including gases that cause bad odours. 

When air passes through a carbon filter, the odour-causing particles are absorbed into the carbon, effectively neutralising the smell rather than just masking it.

Using the Smell Away® and it’s powerful carbon filter to get rid of rat smells

The core component of the Smell Away® Odour Neutraliser is its activated carbon filter.

When air flows through it, the carbon filter absorbs the odour molecules from the air, preventing them from recirculating back into your home. 

Instead of masking the odour with fragrances, the filter traps and locks away the bad particles, to neutralise the smell. 

By placing the Smell Away Odour Neutraliser near areas where rodents are active or nesting, the filter will start trapping these odour particles, reducing the musky and horrible ammonia-like scent.

Likewise with dead rats and mice: the activated carbon filter in the Smell Away Odour Neutraliser capture and neutralise the gasses that produce the foul smell. 

What you can expect from the Smell Away®

• Effective relief: Once in place, the carbon filter begins absorbing odours quickly, providing relief from rodent smells.
• A non-intrusive solution: Unlike air fresheners that mask the smell with artificial fragrances, the Smell Away® Odour Neutraliser truly eliminates the odour by capturing the particles responsible for it.
• Long-lasting: The filter will last you 1-2 years (depending on use), ensuring ongoing odour control for a reasonable price and very little maintenance.
• No chemicals: It's a natural way to tackle odours without introducing harsh chemicals into your home.

The Smell Away® Odour Neutraliser provides a reliable and effective solution for eliminating rodent odours. It works by trapping and neutralising the molecules responsible for the bad smells, offering a cleaner, fresher environment without simply masking the problem.

The Smell Away® is not just for rat smells - it can get rid of a whole range of smells 

Once you've gotten rid of the rat or mouse smells, the Smell Away® can be used just as effecitvely on a whole range of different smells. While it's neutralising smells, it'll also remove airborne dust, dirt and harmful pathogens, to clean the air. 

Dog smells

"Great"

"Having always had dogs the house was rather smelly. I spent a fortune on various air freshners, carpet cleaners, sprays etc. I come across this whilst searching for the next possible solution. Arrived really quickly and made a huge difference. If I had to be negative I'd say for me it is a little noisy enough to hear it but that's my pet hate I find my fan irritating as well. A bit pricey but worth it."

Customer from Pontypridd

Cat smells

"Great product"

"Great product that does what it says! We use ours near our cat’s litter box and now I don’t have to worry about our whole house smelling like we have a cat! Would buy again."

Customer from Callington

Curry smells

"Does get rid of the smells!!"

"Was looking for a machine to get rid of cooking smell in a open plan area with heavy strong cooking smells. Got the Smell away machine and within a few hours smells all gone. Cooked a curry dish and turn on the machine and 30minutes no smell at all. Couldnt telll someone just cooked. Works well, high recommend."

Customer from Kingston upon Thames

Cooking & kitchen smells

"Helps with kitchen smell when cooking"

"It has been a problem getting rid of kitchen smell everytime we cook. The scent also lingers hours after and spreads to the whole house including our bedrooms. We usually need to keep our windows open for ventilation but that becomes an issue during winter. Smell away works well in helping control kitchen smell and prevent spreading."

Customer from London

Dead wasps nest smells

"It seems to have helped with the smell of a dead wasps nest"

"It seems to have helped with the smell of a dead wasps nest. Unfortunately the nest is inaccessible so trying to remove the smell whilst it dries out. It certainly seems much more pleasant since plugging in the smell away air purifyer. My only quarrel is the fan being quite loud."

Customer from Cupar

If you're not satisfied within 30 days of purchase, we'll refund your money.

But you won’t need to, as the Smell Away® has been proven time again to help maintain an odour-free and clean living environment without the need of air fresheners.