BBy Bikram Nath·Researched from UK Amazon listings·Updated 2026-10-25·6 products compared
Disclosure: As an Amazon Associate I earn from qualifying purchases. This guide contains Amazon affiliate links, and we may earn a commission — at no extra cost to you — but it never changes our rankings.
What are the best evaporative air coolers to buy in the UK?
Our top pick for Evaporative Air Coolers in the UK is the Midea 7L Air Cooler, 6 Speeds, 5 Modes, 12H Timer.
The Midea 7L Air Cooler suits buyers who want an evaporative cooler with its settings and warranty spelled out: the listing states 2000m³/h airflow, 6 fan speeds, 5 modes, 75° oscillation, a 12H timer and a 2 year manufacturer warranty.
The Midea 7L Air Cooler is our top pick among evaporative air coolers because its listing states a 7L water tank, 2000m³/h airflow, 6 speeds, 5 modes, 75° oscillation, a 12H timer and a 2 year manufacturer warranty. For a large room, the SereneLife Portable Air Cooler 25L lists 1700 CFM airflow for spaces up to 83 m²; for app, Amazon Alexa or Google Home control, the BLACK+DECKER BXAC65014GB lists a 6L tank and a 2 year guarantee. Anyone shopping for a portable air conditioner should note that the Pro Breeze and ROSEKEYSB listings say they are evaporative coolers, not air conditioning.
This guide compares six evaporative air coolers from Midea, Pelonis, BLACK+DECKER, ROSEKEYSB, SereneLife and Pro Breeze on what each listing states: water tank, airflow, oscillation, timer, ice packs and warranty. Stated tanks run from 5L on the Pelonis to 25 L on the SereneLife.
Buying guide
What should you look for in Evaporative Air Coolers?
1Water tank: the listings state 25 L (SereneLife), 12L (ROSEKEYSB), 10 Litre (Pro Breeze), 7L (Midea), 6L (BLACK+DECKER) and 5L (Pelonis). Pelonis says its 5L tank lasts 10 hours; ROSEKEYSB has a front water-level window and SereneLife a built-in water level alert.
2Airflow and room size: Midea states 2000m³/h, Pelonis 330m³/h, ROSEKEYSB up to 320 m³/h and BLACK+DECKER 300m³/h; SereneLife gives 1700 CFM, a different unit, for spaces up to 83 m². ROSEKEYSB says its cooler is designed for rooms of approximately 10–15 m² and BLACK+DECKER names small/medium rooms; the Pro Breeze listing gives no airflow figure.
3Oscillation and timer: Midea lists 75° oscillation and a 12H timer, Pelonis 60° auto oscillation and a 7H timer, SereneLife 60° oscillation with timer modes, Pro Breeze automatic oscillation and a 7.5 hour timer, and ROSEKEYSB an automatic left-to-right swing and a 7-hour timer. BLACK+DECKER lists a weekly programmable timer; its listing does not mention oscillation in the features we read.
4Ice packs: ROSEKEYSB says four ice packs are supplied and SereneLife that 4 are included; Pelonis and Pro Breeze name 2, BLACK+DECKER mentions dual ice packs, and Midea says ice packs are included without giving a number.
5Warranty: Midea lists a 2 year manufacturer warranty, Pelonis 2 years and BLACK+DECKER a 2 year guarantee. The ROSEKEYSB listing says there is no manufacturer warranty, and the Pro Breeze listing states no warranty term.
Our process
How do we choose our picks?
We don’t lab-test products ourselves. Instead we synthesise current Amazon UK listings and published specs into clear, honest recommendations. We earn a commission if you buy through our links, but that never changes which products we rank.
Current UK availability
We check each pick against live Amazon UK catalogue data rather than last year’s model lists. Stock moves fast, so a listing can sell out after we publish.
Published specs
We compare manufacturer specifications so each pick is right for a real budget and use-case.
UK-specific fit
We factor in UK voltage and plug/fitting standards — details that generic global lists miss.
Weekly programmable; set by app, remote or touch controls
7-hour
Timer modes, set from the remote
7.5 hour
Ice Packs
Included
2
Dual
4
4
2
Airflow
2000m³/h; 7.2m/s wind speed
330m³/h
300m³/h
Up to 320 m³/h; wind speed up to 8 m/s; for rooms of approximately 10–15 m²
1700 CFM; for spaces up to 83 m²
—
Oscillation
75°
60° auto oscillation; manual tilt
—
Automatic left-to-right swing; louvres adjust manually up and down
60°
Automatic
Speeds And Modes
6 fan speeds; Natural, Vapour, Baby, Sleep and AI modes
3 speeds; natural, sleep and normal modes
3 airflow modes: normal, natural and sleep
—
3 fan speeds; 2 wind modes
3 fan speeds; fan only, air cooler, natural and night modes
Warranty
2 year manufacturer
2 years
2 year guarantee
No manufacturer warranty
—
—
The rankings
The best Evaporative Air Coolers, ranked
1
Midea
Top Pick
Midea 7L Air Cooler, 6 Speeds, 5 Modes, 12H Timer
The Midea 7L Air Cooler suits buyers who want an evaporative cooler with its settings and warranty spelled out: the listing states 2000m³/h airflow, 6 fan speeds, 5 modes, 75° oscillation, a 12H timer and a 2 year manufacturer warranty.
Water Tank
7L
Airflow
2000m³/h; 7.2m/s wind speed
Oscillation
75°
Timer
12H, automatic shut-off
Ice Packs
Included
Warranty
2 year manufacturer
Speeds And Modes
6 fan speeds; Natural, Vapour, Baby, Sleep and AI modes
What we like
+States 2000m³/h airflow and a 7.2m/s wind speed from an AC motor
+6 fan speeds, 5 cooling modes and 75° oscillation; Midea says noise levels are as quiet as 28dB
+A temperature sensor adjusts the wind speed to the environment temperature, per the listing
+2 year manufacturer warranty and a detachable, washable filter
Worth noting
–The listing says ice packs are included but does not say how many
–The listing gives no room size in square metres
£126.09Amazon.co.uk price as of 03 Nov, 18:00 (London time). Details
PELONIS 5L Evaporative Air Cooler, 3-in-1 Cooling Tower
The PELONIS 5L Evaporative Air Cooler suits a bedroom or office where a compact unit will do: its listing states 330m³/h airflow, 60° auto oscillation, a 7H timer, 2 ice packs and a warranty of 2 years.
Water Tank
5L (Pelonis says it lasts 10 hours)
Airflow
330m³/h
Oscillation
60° auto oscillation; manual tilt
Timer
7H
Ice Packs
2
Warranty
2 years
Speeds And Modes
3 speeds; natural, sleep and normal modes
What we like
+3-in-1: fan, evaporative cooler and humidifier, per the listing
+60° auto oscillation plus manual tilt, with 330m³/h airflow
+Pelonis says the 5L tank lasts 10 hours; the filter is detachable
+Warranty of 2 years stated on the listing
Worth noting
–The smallest stated tank in this guide, at 5L
–The listing states no power figure in watts
–The listing gives no room size in square metres
View on Amazon UKAmazon UK shows no offer for this product as of 03 Nov, 18:00 (London time). Details
3
BLACK+DECKER
BLACK+DECKER Smart Digital Air Cooler BXAC65014GB, 6L
The BLACK+DECKER BXAC65014GB suits a small or medium room where app, Alexa or Google Home control matters: its listing states a 6L tank, 300m³/h airflow, a weekly programmable timer and a 2 year guarantee.
Water Tank
6L
Airflow
300m³/h
Timer
Weekly programmable; set by app, remote or touch controls
Ice Packs
Dual
Warranty
2 year guarantee
Speeds And Modes
3 airflow modes: normal, natural and sleep
What we like
+Controlled from the BLACK+DECKER Home App, Amazon Alexa or Google Home, as well as remote and touch controls
+Weekly schedules, automation and Tap to Run saved settings, per the listing
+Honeycomb filter with no venting required, the listing says
+2 year guarantee
Worth noting
–The listing does not mention oscillation in the features we read
–Described for small/medium rooms, with no room size in square metres
–The listing states no fan speed count or power figure
£80.60Amazon.co.uk price as of 03 Nov, 18:00 (London time). Details
ROSEKEYSB 12L Evaporative Air Cooler with Remote, 65W
The ROSEKEYSB 12L Evaporative Air Cooler suits a bedroom or home office of approximately 10–15 m²: its listing states a 12L tank, 65W, four ice packs and castor wheels, and also says there is no manufacturer warranty.
Water Tank
12L, with a front water-level window
Airflow
Up to 320 m³/h; wind speed up to 8 m/s; for rooms of approximately 10–15 m²
Oscillation
Automatic left-to-right swing; louvres adjust manually up and down
Timer
7-hour
Ice Packs
4
Warranty
No manufacturer warranty
Power
65W
What we like
+12L tank with a front water-level window
+Lists 65W, airflow up to 320 m³/h and a wind speed of up to 8 m/s
+Four ice packs, a remote, touch controls and castor wheels
+UK plug, per the listing title
Worth noting
–The listing says there is no manufacturer warranty
–Designed for small rooms of approximately 10–15 m², per the listing
–No oscillation angle is given for the automatic swing
£70.99Amazon.co.uk price as of 03 Nov, 18:00 (London time). Details
The SereneLife Portable Air Cooler 25L suits a large living room, office or open-plan area: its listing states a 25 L tank, 1700 CFM airflow for spaces up to 83 m², 4 ice packs and built-in wheels.
Water Tank
25 L, fully detachable, with a water level alert
Airflow
1700 CFM; for spaces up to 83 m²
Oscillation
60°
Timer
Timer modes, set from the remote
Ice Packs
4
Speeds And Modes
3 fan speeds; 2 wind modes
What we like
+The largest stated tank in this guide, 25 L, fully detachable for cleaning and refilling
+1700 CFM airflow for spaces up to 83 m², per the listing
+4 ice packs included; built-in wheels and handle
+60° oscillation and an LED indicator display
Worth noting
–Airflow is given in CFM, so it does not line up with the m³/h figures on the Midea, Pelonis, BLACK+DECKER and ROSEKEYSB listings
–The remote needs AAA batteries, which are not included
–The listing gives no timer length in hours
£114.79Amazon.co.uk price as of 03 Nov, 18:00 (London time). Details
The Pro Breeze 4-in-1 Air Cooler suits a dry, well-ventilated room, the setting its listing names, with a 10 Litre tank, four modes, 3 fan speeds, a 7.5 hour timer and castor wheels.
Water Tank
10 Litre
Oscillation
Automatic
Timer
7.5 hour
Ice Packs
2
Speeds And Modes
3 fan speeds; fan only, air cooler, natural and night modes
Dimensions
44.5cm x 38cm x 84cm
What we like
+10 Litre tank with 2x ice packs, per the listing
+Four modes (fan only, air cooler, natural and night), 3 fan speeds and a 7.5 hour timer
+4 castor wheels; arrives pre-assembled, with a control panel and wireless remote
+States its dimensions: 44.5cm x 38cm x 84cm
Worth noting
–The listing gives no airflow figure
–The listing states no warranty term
–Pro Breeze says it is designed for dry, well-ventilated environments and is best used near windows or in open spaces
View on Amazon UKAmazon UK shows no offer for this product as of 03 Nov, 18:00 (London time). Details
Product prices and availability are accurate as of 03 Nov, 18:00 (London time) and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.
Editor's Note
Every listing here states a water tank size, and all but the Pro Breeze give an airflow figure, though SereneLife quotes CFM where the others quote m³/h. Room sizes in square metres appear only on the SereneLife and ROSEKEYSB listings. Midea, Pelonis and BLACK+DECKER state 2-year warranty terms; the ROSEKEYSB listing says there is no manufacturer warranty.
Our Take
As a default, pick the Midea 7L Air Cooler: a 7L tank, 2000m³/h airflow, 75° oscillation, a 12H timer and a 2 year manufacturer warranty, all stated on its listing. For a large living room or open-plan area, the SereneLife Portable Air Cooler 25L lists 1700 CFM for spaces up to 83 m²; for app, Amazon Alexa or Google Home control, the BLACK+DECKER BXAC65014GB lists a 6L tank, 300m³/h airflow and a 2 year guarantee.
Questions & answers
Frequently asked questions
How does an evaporative air cooler work?
Pro Breeze describes a honeycomb waterfall system that passes warm air over ice cold water to distribute cold air throughout a room, and BLACK+DECKER says its honeycomb filter evaporates cold water to distribute chilled air with no venting required. ROSEKEYSB says adding cold water and the supplied ice packs gives a cooler-feeling breeze, and Pelonis says to pre-freeze its ice packs and slot them into the tank.
Is an evaporative air cooler the same as a portable air conditioner?
No: the Pro Breeze 4-in-1 Air Cooler listing says it is an evaporative air cooler, not an air conditioner, and the ROSEKEYSB 12L listing says it is not refrigerated air conditioning. Pelonis says its cooler needs no refrigerants, and BLACK+DECKER says no venting is required.
Which evaporative air cooler has the largest water tank?
The SereneLife Portable Air Cooler 25L has the largest stated tank in this guide, at 25 L. The ROSEKEYSB lists 12L, the Pro Breeze 10 Litre, the Midea 7L, the BLACK+DECKER 6L and the Pelonis 5L; Pelonis says its tank lasts 10 hours.
How big a room can an evaporative air cooler cool?
SereneLife says its 25L air cooler refreshes spaces up to 83 m², and ROSEKEYSB says its 12L model is designed for rooms of approximately 10–15 m². BLACK+DECKER describes its 6L cooler as for small/medium rooms; the Midea, Pelonis and Pro Breeze listings give no room size in square metres.
Do evaporative air coolers work in dry air?
Pro Breeze says its 4-in-1 Air Cooler is designed for targeted cooling in dry, well-ventilated environments and is best used with ice packs in open spaces or near windows. Pelonis says adding water to its 5L cooler humidifies dry air, and ROSEKEYSB says its 12L cooler suits bedrooms, living rooms and home offices when used with appropriate ventilation.
What warranty do evaporative air coolers come with?
The Midea 7L Air Cooler lists a 2 year manufacturer warranty, the PELONIS 5L 2 years and the BLACK+DECKER BXAC65014GB a 2 year guarantee. The ROSEKEYSB listing says there is no manufacturer warranty, and the Pro Breeze listing states no warranty term.
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