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Avalla S-290 Review | 44 Data compared

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  • Avg. price in UK: ~£250
  • Avg. price in US: ~$360
  • Cooling capacity: 10,000 BTU/h
  • Maximum room size: 40 m²
  • Maximum noise level: 65 dB
  • Heating function: no
  • Cooling Energy Efficiency Class: A

Avalla S-290 review. Compare 44 technical specifications and user reviews to see how this product ranks in the Portable Air Conditioners category and whether it is worth buying.

6.4

Overall score

What it is: An overall evaluation of products in the Portable Air Conditioners category, based on technical analysis and user reviews.

When it matters: When you need a quick reference for identifying the best products in the Portable Air Conditioners category.

Score components:

80.0%

6.4

Technical Score

20.0%

?

User score

Good
6.4

Technical Score

What it is: An assessment of technical performance for products in the Portable Air Conditioners category across these key areas: Performance, Features, Design.

When it matters: When you want to compare products in the Portable Air Conditioners category by technical performance, specifications, and available features.

Score components:

55.0%

6.0

Performance

30.0%

5.7

Features

15.0%

9.6

Design

Good
?

User score

What it is: A rating that combines user reviews with the total review volume for products in the Portable Air Conditioners category.

When it matters: When you want to know how products in the Portable Air Conditioners category perform in everyday use and how reliable owners find them over time.

Score components:

70.0%

?

User reviews

30.0%

?

Popularity

  • 5.4
    Bedroom use

    Score components:

    35.0%

    1.0

    Maximum noise level

    25.0%

    4.0

    Night mode

    20.0%

    10

    Timer

    20.0%

    10

    Remote control

  • 6.0
    Large rooms

    Score components:

    40.0%

    6.4

    Cooling capacity

    30.0%

    8.3

    Maximum room size

    20.0%

    2.9

    Airflow (high speed)

    10.0%

    4.0

    Airflow direction control

  • 5.1
    Year-round use

    Score components:

    40.0%

    4.0

    Heating function

    30.0%

    3.0

    Dehumidification capacity

    20.0%

    8.0

    Cooling energy efficiency class

    10.0%

    10

    Automatic fan speed

  • No image
No image

Best prices in UK

    N/A~ £250

Best rankings

?

Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The Avalla S-290 is a versatile 3-in-1 portable air conditioner that combines a 10,000 BTU maximum cooling capacity, a 2-speed fan with a 310 m³/h airflow rate, and a powerful 24L/day dehumidifier. It features an Energy Class A efficiency rating using eco-friendly R-290 refrigerant, an auto-sensing temperature mode capable of cooling down to 16°C, a 24-hour timer, a child lock, a washable filter, and easy mobility via built-in casters. Major pros include its ability to cover large multi-room spaces up to 100 m³, an inclusion of a specialized sash window installation kit, and relatively quiet real-world operations reaching down to 54dB. On the downside, the unit weighs a heavy 23.13 kg, can feel somewhat loud on its highest settings according to some user feedback, and its required exhaust hose installation can initially feel slightly gimmicky or tricky to secure.

Technical Specifications of portable air conditioner Avalla S-290

Technical Score

What it is: An assessment of technical performance for products in the Portable Air Conditioners category across these key areas: Performance, Features, Design.

When it matters: When you want to compare products in the Portable Air Conditioners category by technical performance, specifications, and available features.

Score components:

55.0%

?

Performance

30.0%

?

Features

15.0%

?

Design

6.4
Avalla S-290 has a technical score of 6.45 points, which is lower than 59% of products in this category.
User score

What it is: A rating that combines user reviews with the total review volume for products in the Portable Air Conditioners category.

When it matters: When you want to know how products in the Portable Air Conditioners category perform in everyday use and how reliable owners find them over time.

Score components:

70.0%

0.0

User reviews

30.0%

1.0

Popularity

?
Popularity
What it is: An indicator based on the number of reviews received by products in the Portable Air Conditioners category.
When it matters: When you prefer products in the Portable Air Conditioners category that have been chosen and reviewed by many other buyers.
1.0
Avalla S-290 has a popularity of 1 points, which is lower than 66.3% of products in this category.
Ratio quality/price

What it is: An indicator that combines the overall score of products in the Portable Air Conditioners category with their prices.

When it matters: When you are comparing products in the Portable Air Conditioners category and want a good balance between quality and price.

Score components:

60.0%

6.4

Overall score

40.0%

8.5

Price

7.1
Avalla S-290 has a quality-to-price ratio of 7.1 points, which is higher than 53.7% of products in this category.
Cooling capacity
What it is: Cooling capacity is the amount of heat the air conditioner can remove per hour, measured in BTU/h.
When it matters: Higher capacity cools larger or warmer rooms more effectively, provided the unit is sized correctly.

Importance: HIGH

Good value: At least 12,000 BTU/h

10,000 BTU/h
Avalla S-290 delivers 10000 BTU/h cooling capacity, which is higher than that of 59.6% of portable air conditioners and equal to that of 6.4% of portable air conditioners.
Rated input power
What it is: Rated input power is the electrical power the unit draws at its specified operating point, measured in watts.
When it matters: Lower rated input power reduces electrical demand, though cooling efficiency also depends on delivered capacity.

Importance: HIGH

Good value: Up to 1,200 W

?
Cooling Energy Efficiency Class
What it is: Cooling energy efficiency class summarizes the efficiency of the unit while cooling, from higher to lower letter grades.
When it matters: A higher cooling efficiency class indicates more cooling output for the electricity consumed.

Importance: HIGH

Good value: A or better

A
Avalla S-290 has cooling energy efficiency class A, which ranks lower than 10.7% of portable air conditioners and equal to 89.4% of portable air conditioners.
Heating energy efficiency class
What it is: Heating energy efficiency class summarizes energy efficiency when the unit operates in heating mode.
When it matters: A higher heating efficiency class matters when the portable air conditioner will also provide regular space heating.

Importance: LOW

Good value: A or better

?
Number of speeds
What it is: The number of selectable fan speeds determines how finely airflow and noise can be adjusted.
When it matters: More speed settings make it easier to balance cooling intensity, sound, and comfort.

Importance: MEDIUM

Good value: At least 3 speeds

2
Avalla S-290 offers 2 fan speeds, which is fewer than 63.7% of portable air conditioners and equal to 36.3% of portable air conditioners.
Show more
Fan-only mode
What it is: Fan-only mode circulates room air without running the refrigeration cycle.
When it matters: This mode provides lower-power airflow when cooling is unnecessary.

Importance: MEDIUM

Good value: yes

yes
Avalla S-290 includes a fan-only mode. 99.5% of portable air conditioners support this mode.
Airflow direction control
What it is: Airflow direction control describes whether outlet air can be aimed automatically, manually, or not at all.
When it matters: Better directional control spreads conditioned air more evenly without repositioning the unit.

Importance: MEDIUM

Good value: automatic

none
Avalla S-290 provides none airflow direction control, which ranks lower than 73.1% of portable air conditioners and equal to 26.9% of portable air conditioners.
Night mode
What it is: Night mode adjusts operation for sleeping hours, typically reducing sound, light, or abrupt temperature changes.
When it matters: Night mode is useful when the unit runs in a bedroom or other light- and noise-sensitive space.

Importance: MEDIUM

Good value: yes

no
Avalla S-290 does not include a dedicated night mode. 74.3% of portable air conditioners offer night mode.
Timer
What it is: A timer lets the unit start, stop, or change operation after a scheduled interval.
When it matters: Timer control helps cool a room before use and avoids running the unit longer than necessary.

Importance: MEDIUM

Good value: yes

yes
Avalla S-290 includes a built-in timer. 99.5% of portable air conditioners feature a timer.
Maximum timer duration
What it is: Maximum timer duration is the longest interval that can be scheduled before automatic operation changes.
When it matters: A longer timer window offers more flexibility for overnight use and advance scheduling.

Importance: MEDIUM

Good value: At least 24 hours

24 hours
Avalla S-290 supports a timer of up to 24 hours, which is longer than that of 7.4% of portable air conditioners and equal to that of 92.6% of portable air conditioners.
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Color
What it is: Color describes the main exterior finish of the portable air conditioner.
When it matters: Finish color matters when the unit will remain visible and should suit the room decor.

Importance: LOW

white
Display
What it is: A display shows settings such as target temperature, operating mode, or timer status on the unit.
When it matters: A display makes current settings easier to check without opening an app or using the remote.

Importance: LOW

Good value: yes

yes
Avalla S-290 includes an integrated display. 99.5% of portable air conditioners feature a display.
Control type
What it is: Control type identifies whether settings are entered through touch controls, physical buttons, or both.
When it matters: The interface style affects tactile feedback, cleaning, accessibility, and ease of use.

Importance: LOW

touch
Remote control
What it is: A remote control operates core functions from across the room without touching the unit.
When it matters: Remote access is convenient when the air conditioner is beside a window, across the room, or used from bed.

Importance: LOW

Good value: yes

yes
Avalla S-290 comes with a remote control. 99% of portable air conditioners include a remote.
Handles
What it is: Integrated handles provide secure grip points for moving or repositioning the unit.
When it matters: Handles reduce awkward lifting when the air conditioner is moved between rooms or stored.

Importance: LOW

Good value: yes

yes
Avalla S-290 includes built-in handles for easier carrying. 99.5% of portable air conditioners feature handles.
Show more

Avalla S-290 vs the average portable air conditioner

  • 1000 BTU/h higher cooling capacity
    Avalla S-290 delivers higher cooling capacity than the average portable air conditioner (10000 BTU/h vs 9000 BTU/h).
    What it is: Cooling capacity is the amount of heat the air conditioner can remove per hour, measured in BTU/h.
    When it matters: Higher capacity cools larger or warmer rooms more effectively, provided the unit is sized correctly.

    Importance: HIGH

    Good value: At least 12,000 BTU/h

    Avalla S-290 delivers higher cooling capacity than the average portable air conditioner (10000 BTU/h vs 9000 BTU/h).10000 BTU/h vs 9000 BTU/h
  • 10 m² larger room coverage
    Avalla S-290 covers a larger room area than the average portable air conditioner (40 m² vs 30 m²).
    What it is: Maximum room size is the largest floor area the manufacturer recommends the unit should cool.
    When it matters: A larger rated area is important when cooling open-plan spaces or larger rooms.

    Importance: HIGH

    Good value: At least 30 m²

    Avalla S-290 covers a larger room area than the average portable air conditioner (40 m² vs 30 m²).40 m² vs 30 m²
  • 9.3% lower weight
    Avalla S-290 is lighter than the average portable air conditioner (23.1 kg vs 25.5 kg).
    What it is: Weight is the mass of the portable air conditioner before installation accessories are attached.
    When it matters: A lighter unit is easier to carry, reposition, and move between floors.

    Importance: MEDIUM

    Good value: Up to 25 kg

    Avalla S-290 is lighter than the average portable air conditioner (23.1 kg vs 25.5 kg).23.13 kg vs 25.5 kg
  • 1.5 cm shorter cabinet
    Avalla S-290 is shorter than the average portable air conditioner (69.5 cm vs 71 cm).
    What it is: Height is the vertical dimension of the portable air conditioner.
    When it matters: A shorter cabinet fits more easily below windows, shelves, and other height restrictions.

    Importance: LOW

    Good value: Up to 70 cm

    Avalla S-290 is shorter than the average portable air conditioner (69.5 cm vs 71 cm).69.5 cm vs 71 cm
  • 4.5 cm narrower cabinet
    Avalla S-290 is narrower than the average portable air conditioner (33.5 cm vs 38 cm).
    What it is: Width is the side-to-side cabinet dimension of the portable air conditioner.
    When it matters: A narrower unit occupies less wall and floor space beside a window.

    Importance: LOW

    Good value: Up to 35 cm

    Avalla S-290 is narrower than the average portable air conditioner (33.5 cm vs 38 cm).33.5 cm vs 38 cm
  • 3 cm shallower cabinet
    Avalla S-290 is shallower than the average portable air conditioner (32.5 cm vs 35.5 cm).
    What it is: Depth is the front-to-back cabinet dimension of the portable air conditioner.
    When it matters: A shallower unit protrudes less into the room and leaves more usable floor space.

    Importance: LOW

    Good value: Up to 35 cm

    Avalla S-290 is shallower than the average portable air conditioner (32.5 cm vs 35.5 cm).32.5 cm vs 35.5 cm
  • 40% cheaper
    Avalla S-290 is cheaper than the average portable air conditioner (£250 vs £350).
    Avalla S-290 is cheaper than the average portable air conditioner (£250 vs £350).£250 vs £350
  • 0.5% better value for money
    Avalla S-290 offers better value for money than the average portable air conditioner (7.06 vs 7.026).
    What it is: An indicator that combines the overall score of products in the Portable Air Conditioners category with their prices.
    When it matters: When you are comparing products in the Portable Air Conditioners category and want a good balance between quality and price.
    Avalla S-290 offers better value for money than the average portable air conditioner (7.06 vs 7.026).7.06 vs 7.03
  • 1000 BTU/h higher cooling capacity
    Avalla S-290 delivers higher cooling capacity than the average portable air conditioner (10000 BTU/h vs 9000 BTU/h).
  • 10 m² larger room coverage
    Avalla S-290 covers a larger room area than the average portable air conditioner (40 m² vs 30 m²).
  • 9.3% lower weight
    Avalla S-290 is lighter than the average portable air conditioner (23.1 kg vs 25.5 kg).
  • 1.5 cm shorter cabinet
    Avalla S-290 is shorter than the average portable air conditioner (69.5 cm vs 71 cm).
  • 4.5 cm narrower cabinet
    Avalla S-290 is narrower than the average portable air conditioner (33.5 cm vs 38 cm).
  • 3 cm shallower cabinet
    Avalla S-290 is shallower than the average portable air conditioner (32.5 cm vs 35.5 cm).

Total
Overall
Performance
Design
  • 1 fewer fan speeds
    Avalla S-290 offers fewer fan speeds than the average portable air conditioner (2 vs 3).
  • 40 m³/h lower high-speed airflow
    Avalla S-290 delivers lower high-speed airflow than the average portable air conditioner (310 m³/h vs 350 m³/h).
  • 1 dB louder at maximum output
    Avalla S-290 is louder at maximum output than the average portable air conditioner (65 dB vs 64 dB).
  • 3 dB louder minimum operation
    Avalla S-290 is louder at minimum output than the average portable air conditioner (54 dB vs 51 dB).
    Lowest stated operating noise.
  • More limited airflow control
    Avalla S-290 provides none airflow direction control, while the average portable air conditioner offers automatic.
  • No night mode
    Avalla S-290 does not include a night mode, while the average portable air conditioner does.
  • 8.4 l/24 h lower dehumidification capacity
    Avalla S-290 offers lower moisture removal than the average portable air conditioner (24 l/24 h vs 32.4 l/24 h).
  • 26.3% larger external volume
    Avalla S-290 has a larger external volume than the average portable air conditioner (75668.1 cm³ vs 102623.407656 cm³).
  • More limited airflow control
    Avalla S-290 provides none airflow direction control, while the average portable air conditioner offers automatic.
    What it is: Airflow direction control describes whether outlet air can be aimed automatically, manually, or not at all.
    When it matters: Better directional control spreads conditioned air more evenly without repositioning the unit.

    Importance: MEDIUM

    Good value: automatic

    Avalla S-290 provides none airflow direction control, while the average portable air conditioner offers automatic.none vs automatic
  • 1 fewer fan speeds
    Avalla S-290 offers fewer fan speeds than the average portable air conditioner (2 vs 3).
    What it is: The number of selectable fan speeds determines how finely airflow and noise can be adjusted.
    When it matters: More speed settings make it easier to balance cooling intensity, sound, and comfort.

    Importance: MEDIUM

    Good value: At least 3 speeds

    Avalla S-290 offers fewer fan speeds than the average portable air conditioner (2 vs 3).2 vs 3
  • No night mode
    Avalla S-290 does not include a night mode, while the average portable air conditioner does.
    What it is: Night mode adjusts operation for sleeping hours, typically reducing sound, light, or abrupt temperature changes.
    When it matters: Night mode is useful when the unit runs in a bedroom or other light- and noise-sensitive space.

    Importance: MEDIUM

    Good value: yes

    Avalla S-290 does not include a night mode, while the average portable air conditioner does.
  • 8.4 l/24 h lower dehumidification capacity
    Avalla S-290 offers lower moisture removal than the average portable air conditioner (24 l/24 h vs 32.4 l/24 h).
    What it is: Dehumidification capacity is the maximum volume of moisture the unit can remove from the air in 24 hours.
    When it matters: Higher capacity is more effective in large, persistently humid, or moisture-prone rooms.

    Importance: HIGH

    Good value: At least 24 l/24 h

    Avalla S-290 offers lower moisture removal than the average portable air conditioner (24 l/24 h vs 32.4 l/24 h).24 l/24 h vs 32.4 l/24 h
  • 40 m³/h lower high-speed airflow
    Avalla S-290 delivers lower high-speed airflow than the average portable air conditioner (310 m³/h vs 350 m³/h).
    What it is: High-speed airflow is the maximum volume of air the fan can move per hour.
    When it matters: Higher maximum airflow circulates cooled air through the room more quickly.

    Importance: HIGH

    Good value: At least 350 m³/h

    Avalla S-290 delivers lower high-speed airflow than the average portable air conditioner (310 m³/h vs 350 m³/h).310 m³/h vs 350 m³/h
  • 1 dB louder at maximum output
    Avalla S-290 is louder at maximum output than the average portable air conditioner (65 dB vs 64 dB).
    What it is: Maximum noise level is the loudest stated sound output, usually produced at full cooling or fan speed.
    When it matters: Lower maximum noise makes intensive cooling less disruptive during work, conversation, or sleep.

    Importance: MEDIUM

    Good value: Up to 60 dB

    Avalla S-290 is louder at maximum output than the average portable air conditioner (65 dB vs 64 dB).65 dB vs 64 dB
  • 3 dB louder minimum operation
    Avalla S-290 is louder at minimum output than the average portable air conditioner (54 dB vs 51 dB).
    Lowest stated operating noise.
    What it is: Minimum noise level is the quietest stated sound output, normally reached at a reduced fan setting.
    When it matters: Lower minimum noise is valuable in bedrooms, home offices, and other quiet spaces.

    Importance: MEDIUM

    Good value: Up to 50 dB

    Avalla S-290 is louder at minimum output than the average portable air conditioner (54 dB vs 51 dB).54 dB vs 51 dB
  • 6.01x less popular
    Avalla S-290 is less popular than the average portable air conditioner (1 vs 6.005).
    What it is: An indicator based on the number of reviews received by products in the Portable Air Conditioners category.
    When it matters: When you prefer products in the Portable Air Conditioners category that have been chosen and reviewed by many other buyers.
    Avalla S-290 is less popular than the average portable air conditioner (1 vs 6.005).1 vs 6.01
Total
Overall
Performance
Features
Design

Graphic comparison of Avalla S-290 and other products in the Portable Air Conditioners category

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Third-party reviews

What customers like about Avalla S-290?

  • Highly effective and rapid cooling capability
  • Excellent value for money and budget-friendly
  • Versatile multi-season use with built-in 24L/day dehumidifier and fan modes
  • Easy to set up and works straight out of the box
  • Compact and easily maneuverable form factor
  • Useful features such as a 24-hour timer, child lock, and remote control

What customers dislike about Avalla S-290?

  • Significantly noisy operational volume during high cooling modes
  • The included window sealing kit is basic and primarily designed for sash windows, requiring alternatives for standard double glazing
  • Exhaust hose length can be too short, forcing the unit to sit very close to a window
  • Heavy unit weight makes it cumbersome to transport between different floors
  • Can occasionally trigger float switch or water drainage blockages (E2 errors)

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