Avalla S-290 industrial-class 3-in-1 air conditioner & dehumidifier

SKU: AVS-290

🏷️ Summer sale: save an additional 5% with discount code SUMMER-5%-OFF at checkout!

For you and our planet...

Because protecting your home means security for you and your loved ones against harmful bacteria and mould caused by damp. Because we recognise our planet needs protecting, so all Avalla AC’s use Ozone friendly R-290 refrigerant. Engineered for endurance, performance and convenience, with quiet running down to just 54dB, the features are designed around your home’s needs to create balance and harmony for the family. Love, Avalla.

Avalla for life

Every Avalla portable air conditioner comes with a 2 year warranty and a lifetime of product support. We are also helping to rebuild natural habitats by planting a tree for every order placed. All Avalla operations are powered by renewable energy, we offset all our emissions and we support hydroelectric and wind farm projects in developing countries.


Powerful cooling

Get ready for summer! Remember that unbearable heat? We do. Which is why the S-290 is capable of cooling multiple rooms, ideal for the home and dedicated zone control. With 10000BTU, climate control for spaces 100m³ with auto sensing down to 16°c.

Feature rich

A portable compact design, hosts useful features including child lock, 24-hour timer, washable filter and the supplied window kit. This allows for sash-style windows to be easily and quickly sealed for maximum efficiency.

All-season all-star

Doubling as a powerful 24L/day dehumidifier, protect your home and family from harmful damp and mould. Use the supplied drainage hose with no need to vent through open windows. By controlling your climate, you can save a massive 76% on your energy compared to the average tumble dryer.

Safely dry your clothes

The smartest and safest way to dry clothes, protecting your delicates from harsh tumble drying. Sportswear, wool, silk, leather, suede, nylon; accelerate natural drying and save energy, money and time. No more shrunken jumpers!


Market leading industrial class air conditioning unit with 24L dehumidifier mode and a large 100m³ coverage area. This portable air con unit is ideal for drying clothes or treating damp, mould, condensation and moisture in homes, bedrooms, garages, bathrooms, and offices. To remove the moisture simply connect the supplied drainage hose to collect water in any suitable vessel. The S-290 mobile air conditioners are an ideal winter investment, that will also prepare you for the warm summer months.

One touch operation

This portable air conditioner is fitted with a long reach 1.8M cable, simply plug in, switch on, select cooling mode, and set your desired room temperature as low as 16°C. The built-in AC temperature sensor will automatically adjust all settings to ensure your preferences are met. Simple to operate, everything can be controlled using the touch panel or remote control.

All-season all-star

Designed for use all-year round. The Avalla portable air conditioner unit is made for summer, with a dehumidifier mode for winter and fan mode for spring and autumn. This air conditioner dehumidifier also has several other features including a child lock, timer, washable filter, and smart-plug compatible memory.

Safe for the environment

All of our dehumidifier air conditioners only use natural, non-toxic, and environmentally safe R290 refrigerant.

Sash window kit included

The included window kit will allow you to neatly fit the 150mm diameter hose through any sash window, so the extracted hot air from your air conditioning unit is efficiently ejected from your home or office. Alternatively, the hose can simply be placed directly through any window.

Avalla for life

With lifetime UK based customer support, over 100 years of industry expertise, and a 2 year warranty, Avalla are always here for you. We are proud to be helping rebuild natural habitats by planting a tree for every order placed and powering our services on 100% renewable energy.

The Avalla S-290 industrial-class 3-in-1 air conditioner and dehumidifier.
The Avalla S-290 industrial-class 3-in-1 air conditioner and dehumidifier.
The Avalla S-290 industrial-class 3-in-1 air conditioner and dehumidifier.
The Avalla S-290 industrial-class 3-in-1 air conditioner and dehumidifier.
The Avalla S-290 industrial-class 3-in-1 air conditioner and dehumidifier.
Avalla is a UK based company, backed by over 100 years of experience in product design and quality assurance.

Choose your champion

Customer Reviews

Based on 138 reviews
Very happy *****

We are very pleased with our purchase. Does the job perfectly and even in the scorching Cyprus heat! Thank you

Nice compact unit

I’m a little disappointed that I paid full price only for the sale to begin before I’d even used the unit which means I paid £75 more! It’s a nice compact unit that can easily be moved from room to room, which I love! It’s just a lot nosier than expected (and advertised) I think they tell you the lowest possible decibel rather than the number on the unit which is 65db (not 54db as advertised). After using it for the first time last night, noise aside, it cools down my big lounge/dining room beautifully. I just wish I’d waited a few days more for the sale!!


Have to admit was hopeful but sceptical but it does work, reduced temperature by 2 deg in about 30 mins which a fan just won't do. Downside is yes its noisy but I knew it would be, a small price to pay for a wonderfully cool room.
Happy with purchase.... as is my elderly dog!

Decent unit but nowhere near as powerful as they claim

The S290 industrial cools a smaller space very well, but the AC cannot cope with the 100m3 that they claim it does. The dehumidifier effect is exceptional however and we've had no condensation (caused by our commercial dishwashers) since using it. Noise levels are acceptable.

Excellent product

Compact air conditioning unit. Powerful enough to cool the whole room and means we don’t have to sleep with the unit on. Portable on wheels so easy to manoeuvre.