20 Litre Dehumidifier with air purifier Continuous Drainage Hose

Rated 5.00 out of 5 based on 26 customer ratings
(26 customer reviews)


  • NEW & IMPROVED: Now with the added feature of ‘Sleep Mode’ you can turn the all the display lights off for undisturbed sleep!
  • CONVENIENT & EASY TO USE: With a large removable 6.5 Litre water tank or the continuous drainage feature to remove up to 20 Litres of moisture today, this dehumidifier will suit everyone’s needs.
  • SMART HUMIDITY SENSING: A state-of-the-art humidity sensor will detect the humidity of the room quickly and accurately. In addition to the LED display, a 3-light indicator system keep you aware of the humidity level around you.
  • PORTABLE & EASY TO STORE: Four castor wheels are conveniently located on the underside of the dehumidifier to allow for easy moving without having to lift the unit each time. These can be easily fitted or removed according to preference.
  • ELIMINATES MOISTNESS, ODOUR & OTHER THINGS YOU HATE: Help you eliminate the mouldy and various odour caused by moisture. Keep the environment dry and comfortable and prevent all kinds of goods from being damaged by wet air
PureMate 20L/Day Portable & Compact Dehumidifier with 6.5 Litre Tank Capacity, Digital Display, Continuous Drainage, Laundry Drying and 24Hr Timer Function

The PureMate PM 420 is a portable 20 litre per day dehumidifier that delivers exceptional de-humidification with all the lasting performance you would expect from such a global brand. It's designed to create a healthier and more comfortable environment for houses with up to 5 bedrooms by removing the excess moisture and humidity that can encourage the growth of common allergens and cause damage and staining to your furnishings. It reduces humidity levels, making your home less hospitable to allergens such as dust mites, mold, and mildew therefore reduce irritation to your skin and your respiratory system, allowing you to breathe easier and feel comfortable in your home.

You can even use this quality dehumidifier to significantly reduce the drying time of damp laundry on a radiator or towel rail. A less humidly environment in your home means clothing will dry faster, breads and cereals will remain fresh longer without getting stale, and you won't find signs of rust or corrosion on things like computer equipment, electronics, and tools.

The PM 420 dehumidifier is nicely designed and feature intuitive touch button controls and a clear LCD screen so you can control the humidity level inside the room with ease. Other features include a 24 hour timer function, two fan speeds for further customise use and 6.5L Removable Water Tank Capacity. The durable caster wheels and compact design allow you to easily move the unit from room to room. Please note, the actual amount of water the unit will draw will depend on the room size, temperature and humidity.

  • Continuous Drainage:
  • A large removable 6.5 Litre water tank is built into the compressor dehumidifier with an additional continuous drainage option should you require a more permanent drainage solution. This can be directed into a drain or storage container.
  • Humidity Indicator Lights:
  • In addition to the LED display, a 3-light indicator system keep you aware of the humidity level around you. A Blue light indicates less than 50%, a Green light is an optimum 50-70% and a Red light indicates a RH% of greater than 70%.
  • Fitted Wheel System:
  • Four castor wheels are conveniently located on the underside of the dehumidifier to allow for easy moving without having to lift the unit each time. These can be easily fitted or removed according to preference.
  • Black Mould & Damp:
  • Mould is a widespread problem in various households. Mould can signify high humidity levels and will most likely cause unpleasant, musty odours in your home. Black Mould is the most dangerous and can release harmful compounds into the air. Black mould starts to thrive at 50% relative humidity, therefore it is critical to control your rooms humidity level to avoid its development.


  • Extracts up to 20L of moisture per day
  • Dual fan speeds and 24 hour timer function.
  • 6.5 Litre Removable Water Tank Capacity
  • Portable & Easy to move with casters and Lightweight rotary compressor.
  • Direct drain option for continuous operation.
  • Automatic humidity sensor (Humidistat)
  • Defrosting Function
  • Sleep Mode (Turning display lights off)


  • Model Number : PM 420
  • Power Supply: 220 to 240V~50Hz
  • Power Consumption: 420W [High Setting]
  • Net Weight: 14.5 kg
  • Dimensions: 34 x 24 x 57 CM
  • Room Temperature: 5°C - 32°C
  • Water Tank Capacity: 6.5 L

Box Contains:

  • 1 x Dehumidifier
  • 1 x User Manual in English


We aim to deliver items that are currently in stock within 1 working day (excluding Bank Holidays) after the date the order is placed.

Working days are defined as Monday-Friday 9am – 5pm inclusive, excluding Saturday, Sunday and Public Holidays.

Please note that during particularly busy periods, it may take a little longer to receive your delivery and our carrier may attempt to deliver to you on a Saturday.

The Next Day service will be available for orders placed on the website from Monday to Friday before 1pm. Please be advised this is Next Working Day



Returning an item could not be simpler with our 30 day money back guarantee:

Our products are covered by our 30 day no quibble money-back-guarantee as long as they are with their original packaging, and in a condition to be resold.

This promise exceeds your legal rights under the Consumer Contracts Regulations

To return an item, you can either:

  • Email or call our Customer Services team at [email protected] or 0800 612 8027  and they will provide you with returns instructions.

See our Delivery and Returns section for more information.

26 reviews for 20 Litre Dehumidifier with air purifier Continuous Drainage Hose

  1. Rated 5 out of 5

    johnson adejo

    This dehumidifier is excellent value for money and ours has not leaked as other reviewers said. Really good at keeping condensation at bay as it keeps our 2 bed house dry. It’s also great at drying laundry and I like that it has an indicator showing the level of humidity at any given time. On full power it is a little noisy but we just run it on that setting do dry washing quickly. We use it a lot in the bathroom and around the house as needed as very easy to move thanks to the castor wheels. The water tank is very easy to lift and empty when full and the humidifier automatically shuts off when the tank is full. I’m really pleased with this dehumidifier and would recommend it.

  2. Rated 5 out of 5

    Malcolm Donohoe

    Great value for money. I imagine it’s on noisier than similar machines. Like the timer timer function

  3. Rated 5 out of 5

    aylin aitken

    Our daughters bedroom became mouldy everytime it was raining. Since we got this there is no mould and no bad smells. Fantstic product, would recommend and 5 stars

  4. Rated 5 out of 5

    Rob Jones

    This was my first large dehumidifier, after buying small portable ones, and I was not disappointed. The amount of water extracted is impressive – I had no idea there was that much water in the atmosphere of my home. The dehumidifier is easy to move as it is on wheels and is not too noisy, although you can hear it when it is in operation. I love this and would definitely buy again.

  5. Rated 5 out of 5

    Moona Pinky

    I bought this to remove the condensation in my kitchen and dining room mainly.
    You could see a difference in a matter of an hour or so with a considerable amount of water in the tray.
    Being fully portable I’m moving it around the house to great affect.
    The laundry drying mode is a bonus and works great.
    The 6+ litre drainage container is also an ideal size with auto off when full.

  6. Rated 5 out of 5


    Came quickly and it really does the job. It’s easy to use and I would definitely recommend it to future buyers.

  7. Rated 5 out of 5

    Bernie R.

    works really well. Just had my house replastered and this really speeds up the drying time. will probably use it to hep dry clothes in the winter. excellent unit. Lightweight and easy to wheel around.

  8. Rated 5 out of 5

    MRS K J

    The best one I have bought! It is very sturdy, has a drawer easy to empty, a great carry handle and on wheels. It really does the job – our house is built into a hill with constant damp problems – we do not smell the damp anymore!

  9. Rated 5 out of 5

    Sophie Gerra

    Great product – much smaller and more efficient than the one I borrowed. Quite noisy but if that’s not an issue can recommend .

  10. Rated 5 out of 5

    Jack Mill

    This item claims to do many things to stop internal dampness. It really does do what they state on the instructions.
    Within the first 4 hours, the machine removed 70{173b0b3896828b669347ec68cbebe8080697ae37dbaf6f76ff14b0598d22c1f8} of the dampness. No longer do we have windows full of condensation and units against walls becoming damp. Just 4 hours a day operation, stops dampness. When we put on the tumble dryer, we put the machine on too, removing dampness from the air and allowing the drying to be quicker.
    This one machine saves buying the manual ones that go in each room. This machine covers the whole house.

  11. Rated 5 out of 5


    Large, well designed water collection bucket. Good price. very Happy

  12. Rated 5 out of 5


    Great performance. Not as noisy as some others.

  13. Rated 5 out of 5


    Although title says 20litre portable dehumidifier which when I bought I thought it meant 20 litre capacity but that means in high temperature around 30 or more can give 20 litre water in a day. Its tank is 5 litre . Does the job in great way. Cheap products didn’t work for me but this was a saviour . You can let it be on continuously and turn it off manually or put it on timer from 1 hour to 24 hour. It shows what’s the moist degree in the room and you can see changes in color. It’s easy to empty the tank , make sure u empty the tank and if u are not going to use it for few days or weeks clean the tank n pipe inside . Although it looks expensive but worth every penny as cheap ones were waste of money and energy. Whenever u want to use it make sure you close door in that room to benefit most of the device and its function. Totally recommend it!

  14. Rated 5 out of 5


    quickly delivered and it really does the job. Easy to use and I would definitely recommend it to my friends and family.

  15. Rated 5 out of 5


    Nice appliance. Quiet and efficient.

  16. Rated 5 out of 5


    I bought this as my house gets very humid in the winter does a great job pulling excess water. No more nasty mouldy.

  17. Rated 5 out of 5


    Excellent but the tank collector does get heavy with the amount of water it can collect. I’ve learned to empty it before it becomes too full.

  18. Rated 5 out of 5

    Paul S

    smart good quality,ideal for our cottage

  19. Rated 5 out of 5

    Mamma Spider

    I purchased this item for a 4 bedroom house with a minor condensation problem which I rent out to tenants, I have been informed that the problem has been completely solved .. not even condensation on the windows in the morning .. our tenants are extremely pleased, which means I’m very happy Pleased highly recommend .. thank you.

  20. Rated 5 out of 5

    Mamma Spider

    I purchased this item for a 4 bedroom house with a minor condensation problem which I rent out to tenants, I have been informed that the problem has been completely solved .. not even misting on the windows in the morning .. my tenants are extremely happy, which means I’m very happy .. would highly recommend .. thank you.

  21. Rated 5 out of 5


    By spec and by reviews, this one was one of the best I was able to find in January 2016 around the £200 price tag.
    Sleek design
    Large 5 litres water collector container means you need to empty it almost twice less frequently than most similar products
    It has wheels
    Shows the actual humidity on a digital display
    Works fast to bring humidity down (in a 45m sq apartment)
    Container easy to remove
    Switches off the condenser as soon as the target humidity has is reached and as well as the fan a few minutes later.
    Two fan speeds selection. Low (standard) and High (boost).
    Turbo function.

  22. Rated 5 out of 5


    Brilliant !

  23. Rated 5 out of 5

    MRS H

    Very good and does the job it is supposed to do the service was very good from the firm fast and on time

  24. Rated 5 out of 5


    We moved in to a new house and was suffering from mold everywhere. This seems to have fixed the problem. very handy as comes with on wheels!

  25. Rated 5 out of 5


    I have a utility room next to an inside bathroom, so no natural venting to the outside is available. The internal fan hasn’t been doing a great job of removing all the moisture out of the air when we used appliances for washing. The consequence of this is the utility room next to the bathroom got rather musty and some clothes started developing light mold on them, rather nasty. So I bought this unit to help eliminate the smell and the humidity problem. My wife is very sensitive to mold, and this has really helped in that respect, keeping the humidity low enough to inhibit mold growth. I kept the unit on, running all night and day for the recommended time stated. We do have to empty the 5 litre tank at least once a day, sometimes twice, but we have a option to use the direct drain to use the hose attachment. I imagine the hose/auto drain feature is really useful, but emptying the tank works too. I was totally amazed just how much moisture was in that room. The room is now smelling much better with that moldy smell gone and hopefully no more mold growth will occur. I would highly recommend this unit. It is not too noisy, and we haven’t noticed an increase in our electric bill with this great PureMate 20 Litre dehumidifier running day and night.

  26. Rated 5 out of 5


    I Love this Product.Better value than ones found in national stores. Awsm water Tank.

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