Damp season is here: early Prime Day deals that'll dry out your home and your car

Dehumidifiers are quickly becoming one of the handiest appliances in homes across the UK as the weather starts to get colder.

As we're transitioning into autumn and preparing for winter, you may start to notice chillier temperatures, fogged-up windows and the central heating secretly getting dialled up.

Unfortunately, this can cause damp, humidity and mould to wreak havoc in your home - which is where a dehumidifier comes in.

Not only are they a great little gadget for preventing mould and maintaining the condition of your home, but did you know they can also help save on your energy bills, too?

As well as improving the efficiency of your central heating, they can help speed up drying your laundry indoors.

No matter how small, every saving that you make counts for something - especially as the cost of living remains a concern for many and energy bills continue to rise.

In fact, money saving expert Martin Lewis has previously recommended running a dehumidifier when airing out your laundry as opposed to relying on a tumble dryer.

Using a dehumidifier rather than turning the heating up high can enable you to save around £325 per year on your heating bill, according to the dehumidifier company, EBAC.

They aren't just useful for your home, either.

TikTok users have been raving about a viral hack that involves placing a compact dehumidifier in your car to reduce foggy windshields and protect interiors from damp.

In a clip shared by @allukreviews, the social media user explained that all you need to do is simply place the dehumidifier on the dashboard and it will help to withdraw extra moisture - leaving your windows nice and clear.

How exactly does a dehumidifier work?

Dehumidifier models can look and perform slightly differently, but ultimately, they do the same thing.

They work to regulate humidity and draw excess moisture from the air.

Car dehumidifiers come in a more compact form and use hygroscopic materials like silica gel beads or activated charcoal inside a fabric pouch to absorb moisture.

Unlike electric dehumidifiers, they don't require power and are designed to help reduce condensation and dampness inside vehicles.

Most home dehumidifiers draw in humid air, extract the moisture and then release drier air back into the room. The collected water is typically stored in a tank that needs to be emptied regularly. These units often require power to run their internal fan and moisture-removal systems.

How can a dehumidifier help you save money on your bills?

Humid air contains water which takes more energy to heat in comparison to dry air. By reducing excess humidity, a dehumidifier allows you to heat your home quicker and more efficiently.

According to the Energy Saving Trust, using a dehumidifier could reduce the thermostat by 2 degrees, saving up to 15 percent on energy bills in total.

They're particularly useful when drying laundry indoors, too. A single load of washing can release up to two litres of water into the air, increasing humidity levels throughout your home.

Without a dehumidifier, radiators have to work harder to tackle excess moisture, which can hike up your energy bills.

With Amazon Prime Big Deal Days just around the corner, we've selected some of the best dehumidifiers that could help reduce damp, speed up laundry drying and save you money on your energy bills in the long run.

Hillington Car Dehumidifier Bags, WAS £9.99 NOW £8.49, on Amazon

With thousands of five-star reviews, these multipurpose car dehumidifiers are designed to eliminate foggy windows, damp interiors and excess moisture.

They can be used outside of the car too, from wardrobes and garages to the bedroom window ledge.

Pingi Reusable Car Dehumidifier Bag, £8.99 on Amazon

Designed to sit neatly on your dashboard or rear parcel shelf, the Pingi Reusable Car Dehumidifier comes in as a highly rated solution for tackling clouded car windscreens.

Absorbing excess moisture using non-toxic silica gel pearls inside its fabric pouch, it prevents damp, unwanted odours and condensation on interior windows.

The outside of the pouch has a genius colour-change indicator which shows you when the bag is full. Once the blue dot turns pink, heat it in the microwave for six minutes to allow the moisture to evaporate, before using it again once it has cooled.

Many reviewers claim it has significantly helped keep the windscreen clear, "saving hours" on defogging the windows before their morning commute.

Dunelm 1L Dehumidifier, £25 on Dunelm

If you don't want to spend a fortune and would prefer a smaller, more compact dehumidifier for your home, this option from Dunelm has loads of promising reviews.

Fans of the product claim that it's "very quiet" and "better than others that were more expensive". Well, you can't argue with that.

No fuss, no frills, this machine has a one-liter capacity and works quietly in the background, meaning no undisturbed sleep.

All in all, this nifty little gadget seems like it gets the job done - and all at an affordable price tag, no less.

Pro Breeze OmniDry Dehumidifier, WAS £139.99 NOW £129.95, on Amazon

Currently the most reviewed within the round-up, the Pro Breeze OmniDry Dehumidifier is definitely worth a mention.

It's pulled in thousands of reviews, with delighted customers hailing it a "game-changer" for improving home comfort.

With a two litre water tank, it draws in up to 12 litres of water a day, making it an energy-efficient solution for drying laundry.

Its easy to use LED touchscreen boasts Auto Mode, Continuous Mode and Sleep Mode, and its clean design looks effortlessly modern in any home.

AEOCKY 25L/D Compressor Dehumidifier, WAS £179.99 NOW £139.99, on Amazon

Amazon is currently running a limited time Lightning Deal on the AEOCKY Compressor Dehumidifier at an impressive 25% off.

Compressor dehumidifiers work like a mini refrigerator by drawing warm, moist air over cold coils to condense water vapour into droplets. It comes with a 2.7L tank and even has wheels, which makes daily emptying lighter and easier.

Settings include a Continuous Mode, Smart Drying Mode, Constant Humidity Mode and Auto Mode to suit your individual needs.

Reviewers revealed that they were 'very impressed', with customer claiming they bought this model for their bathroom as they don't have an extractor fan, and noticing a difference in the level of condensation.

HumiZap Dehumidifier, WAS £119.99 NOW £89.98, on Amazon

This fantastic deal on Amazon means that the HumiZap Dehumidifier comes in at just under £90, so it's a complete steal.

Carrying 1.5 litres of capacity within the tank, it's a fairly neat unit that should come in handy when you're airing out your laundry indoors to save money on your heating costs.

It has three operating modes and a 24-hour timer, including a 36dB Quiet Mode which won't disturb you as you sleep.

This hardworking machinewill be working hard to prevent moisture and mould taking over your home with its clever compressor technology.

Meaco MeacoDry Arete One 20L Dehumidifier & Air Purifier, £259 on Currys

Designed to act as a dehumidifier and air purifier all in one, this MeacoDry Arete One model is clearly a favourite over at Currys.

Multiple settings offer a more personalised experience, with Smart Laundry designed to dry clothes faster and Night Mode operating quietly with lights switched off.

It holds 4.8 litres of water within its tank, making it ideal for larger homes, basements or caravans.

Meanwhile its air purifying function keeps the air fresh, filters out irritants and keeps unwanted, musty odours at bay.

Russell Hobbs RHDH1001 Portable Dehumidifier, £139 on Currys

Extracting up to 10 litres of water a day, the Russell Hobbs RHDH1001 model is an efficient and reliable diffuser for home use.

It features a two-litre water tank that's easy to empty, while the built-in wheels and handle make it simple to move.

You can leave it running in the background on Continuous Mode to dry your laundry faster, potentially reducing the amount you spend on energy compared to relying on your heating alone.

Reviews claim that it's "great value for money", with many saying it made a difference to the air quality in the house.

When is Prime Big Deal Days?

Prime Big Deal Days will be running from Tuesday 6 October to Wednesday 7 October, 2026.

Deals are exclusively for active Amazon Prime members, so be sure to sign up for a membership in advance.

You can access a Prime membership on a free trial which lasts for 30 days and can be cancelled free of charge within that timeframe. After that, the membership will cost £8.99 for a month.

Sign up for a free trial of Amazon Prime, here.

How long is Amazon Prime Day 2026?

October's Prime Day is scheduled to last for 48 hours, coming to an end on Wednesday 7 October, 2026 at 12.01am.

With only a limited time to shop the best dehumidifier deals, it's worth adding your favourites to your wish list ahead of the sale.

If you want to find out more about the big event, you can read everything you need to know about Amazon Prime Day in advance, here.