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Ariston Mobis 9000 Btu Review | 44 Data compared

Avg. price in UK: ~£260
Avg. price in US: ~$340
Cooling capacity: 9,000 BTU/h
Maximum room size: 18 m²
Maximum noise level: 52 dB
Heating function: no
Cooling Energy Efficiency Class: A

Ariston Mobis 9000 Btu 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.

7.0

Very good

6.8

Good

7.8

Very good

10
Bedroom use
Score components:
35.0%
10
Maximum noise level
25.0%
10
Night mode
20.0%
10
Timer
20.0%
10
Remote control
3.5
Large rooms
Score components:
40.0%
4.6
Cooling capacity
30.0%
1.9
Maximum room size
20.0%
2.0
Airflow (high speed)
10.0%
7.0
Airflow direction control
7.2
Year-round use
Score components:
40.0%
4.0
Heating function
30.0%
10
Dehumidification capacity
20.0%
8.0
Cooling energy efficiency class
10.0%
10
Automatic fan speed

Best prices in UK

Best rankings

#3 in Best Cheap Portable Air Conditioners
#3 in Best Small Portable Air Conditioners
#4 in Best Portable Air Conditioners for Bedrooms
#6 in Best 9000 BTU Portable Air Conditioners
#13 in Best Quiet Portable Air Conditioners
#46 in Best Portable Air Conditioners

Verdict

The Ariston Mobis 9 is a compact, 3-in-1 portable air conditioner delivering 9,000 BTU/h of cooling power (2.6 kW) using eco-friendly R290 refrigerant, making it ideal for rooms between 12 and 18 square meters. Operating on 220-240V with a power input of 1000W, it features cooling, ventilation, and dehumidifying modes, alongside an integrated 24-hour timer, an intuitive digital interface, a remote control, and a specialized anti-odour carbon filter that eliminates airborne bacteria and allergens. Key advantages include its Class A energy rating with a standard 2.6 Energy Efficiency Ratio (EER), a space-saving design measuring 35 x 40 x 70 centimetres, and integrated casters for easy transport. However, drawbacks include a noticeable noise output of up to 64 dB(A) at maximum operation and a lower overall energy efficiency compared to permanent split-system alternatives.

Technical Specifications of portable air conditioner Ariston Mobis 9000 Btu

Overall score

7.0

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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.

Performance

5.7

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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

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

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

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Features

7.8

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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

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

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

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

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

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Design

8.8

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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

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

physical

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

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

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Ariston Mobis 9000 Btu vs the average portable air conditioner

Why is Ariston Mobis 9000 Btu better than the average portable air conditioner?

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21.89 l/24 h higher dehumidification capacity
Ariston Mobis 9000 Btu offers higher moisture removal than the average portable air conditioner (54.3 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
Ariston Mobis 9000 Btu offers higher moisture removal than the average portable air conditioner (54.3 l/24 h vs 32.4 l/24 h).54.29 l/24 h vs 32.4 l/24 h
12 dB quieter at maximum output
Ariston Mobis 9000 Btu is quieter at maximum output than the average portable air conditioner (52 dB vs 64 dB).
Highest stated operating noise.
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
Ariston Mobis 9000 Btu is quieter at maximum output than the average portable air conditioner (52 dB vs 64 dB).52 dB vs 64 dB
3.5 dB quieter minimum operation
Ariston Mobis 9000 Btu is quieter at minimum output than the average portable air conditioner (47.5 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
Ariston Mobis 9000 Btu is quieter at minimum output than the average portable air conditioner (47.5 dB vs 51 dB).47.5 dB vs 51 dB
55 W lower rated power draw
Ariston Mobis 9000 Btu draws less power than the average portable air conditioner (945 W vs 1000 W).
Cooling-mode power draw.
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
Ariston Mobis 9000 Btu draws less power than the average portable air conditioner (945 W vs 1000 W).945 W vs 1000 W
3 °C higher maximum temperature
Ariston Mobis 9000 Btu can be set to a higher temperature than the average portable air conditioner (35 °C vs 32 °C).
What it is: Maximum set temperature is the highest thermostat target available in the unit controls.
When it matters: A higher maximum setting provides a broader adjustment range, especially on models with heating.
Importance: LOW
Good value: At least 30 °C
Ariston Mobis 9000 Btu can be set to a higher temperature than the average portable air conditioner (35 °C vs 32 °C).35 °C vs 32 °C
3.5 cm narrower cabinet
Ariston Mobis 9000 Btu is narrower than the average portable air conditioner (34.5 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
Ariston Mobis 9000 Btu is narrower than the average portable air conditioner (34.5 cm vs 38 cm).34.5 cm vs 38 cm
5.5% better value for money
Ariston Mobis 9000 Btu offers better value for money than the average portable air conditioner (7.41 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.
Ariston Mobis 9000 Btu offers better value for money than the average portable air conditioner (7.41 vs 7.026).7.41 vs 7.03
3.1% lower weight
Ariston Mobis 9000 Btu is lighter than the average portable air conditioner (24.7 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
Ariston Mobis 9000 Btu is lighter than the average portable air conditioner (24.7 kg vs 25.5 kg).24.7 kg vs 25.5 kg
12 dB quieter at maximum output
Ariston Mobis 9000 Btu is quieter at maximum output than the average portable air conditioner (52 dB vs 64 dB).
3.5 dB quieter minimum operation
Ariston Mobis 9000 Btu is quieter at minimum output than the average portable air conditioner (47.5 dB vs 51 dB).
55 W lower rated power draw
Ariston Mobis 9000 Btu draws less power than the average portable air conditioner (945 W vs 1000 W).
3 °C higher maximum temperature
Ariston Mobis 9000 Btu can be set to a higher temperature than the average portable air conditioner (35 °C vs 32 °C).
21.89 l/24 h higher dehumidification capacity
Ariston Mobis 9000 Btu offers higher moisture removal than the average portable air conditioner (54.3 l/24 h vs 32.4 l/24 h).
3.5 cm narrower cabinet
Ariston Mobis 9000 Btu is narrower than the average portable air conditioner (34.5 cm vs 38 cm).
3.1% lower weight
Ariston Mobis 9000 Btu is lighter than the average portable air conditioner (24.7 kg vs 25.5 kg).
0.7 cm shorter cabinet
Ariston Mobis 9000 Btu is shorter than the average portable air conditioner (70.3 cm vs 71 cm).
0.5 cm shallower cabinet
Ariston Mobis 9000 Btu is shallower than the average portable air conditioner (35 cm vs 35.5 cm).

Why is Ariston Mobis 9000 Btu worse than the average portable air conditioner?

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12 m² smaller room coverage
Ariston Mobis 9000 Btu covers a smaller room area than the average portable air conditioner (18 m² vs 30 m²).
Maximum recommended cooling area in m².
55 m³/h lower high-speed airflow
Ariston Mobis 9000 Btu delivers lower high-speed airflow than the average portable air conditioner (295 m³/h vs 350 m³/h).
1 °C higher minimum temperature
Ariston Mobis 9000 Btu has a higher minimum temperature setting than the average portable air conditioner (17 °C vs 16 °C).
More limited airflow control
Ariston Mobis 9000 Btu provides manual airflow direction control, while the average portable air conditioner offers automatic.
No carrying handles
Ariston Mobis 9000 Btu does not include carrying handles, while the average portable air conditioner does.
17.3% larger external volume
Ariston Mobis 9000 Btu has a larger external volume than the average portable air conditioner (84887.3 cm³ vs 102623.407656 cm³).
12 m² smaller room coverage
Ariston Mobis 9000 Btu covers a smaller room area than the average portable air conditioner (18 m² vs 30 m²).
Maximum recommended cooling area in 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
Ariston Mobis 9000 Btu covers a smaller room area than the average portable air conditioner (18 m² vs 30 m²).18 m² vs 30 m²
55 m³/h lower high-speed airflow
Ariston Mobis 9000 Btu delivers lower high-speed airflow than the average portable air conditioner (295 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
Ariston Mobis 9000 Btu delivers lower high-speed airflow than the average portable air conditioner (295 m³/h vs 350 m³/h).295 m³/h vs 350 m³/h
More limited airflow control
Ariston Mobis 9000 Btu provides manual 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
Ariston Mobis 9000 Btu provides manual airflow direction control, while the average portable air conditioner offers automatic.manual vs automatic
1 °C higher minimum temperature
Ariston Mobis 9000 Btu has a higher minimum temperature setting than the average portable air conditioner (17 °C vs 16 °C).
What it is: Minimum set temperature is the lowest thermostat target the unit allows.
When it matters: A lower minimum setting gives more headroom for intensive cooling in very warm conditions.
Importance: MEDIUM
Good value: Up to 16 °C
Ariston Mobis 9000 Btu has a higher minimum temperature setting than the average portable air conditioner (17 °C vs 16 °C).17 °C vs 16 °C
No carrying handles
Ariston Mobis 9000 Btu does not include carrying handles, while the average portable air conditioner does.
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
Ariston Mobis 9000 Btu does not include carrying handles, while the average portable air conditioner does.
2.7% lower user score
Ariston Mobis 9000 Btu has a lower user score than the average portable air conditioner (7.79 vs 8).
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.
Ariston Mobis 9000 Btu has a lower user score than the average portable air conditioner (7.79 vs 8).7.79 vs 8
17.3% larger external volume
Ariston Mobis 9000 Btu has a larger external volume than the average portable air conditioner (84887.3 cm³ vs 102623.407656 cm³).
What it is: The exterior physical volume (bulk footprint) occupied by the portable air conditioner chassis, calculated from its height, width, and depth.
When it matters: Crucial for assessing room floor intrusion and determining whether the appliance can be stored away easily in closets or under stairs off-season.
Importance: LOW
Ariston Mobis 9000 Btu has a larger external volume than the average portable air conditioner (84887.3 cm³ vs 102623.407656 cm³).84887.25 cm³ vs 102623.407656 cm³

Graphic comparison of Ariston Mobis 9000 Btu and other products in the Portable Air Conditioners category

Attribute category

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Third-party reviews

United Kingdom

(Reviews last updated: August 2026)

What customers like about Ariston Mobis 9000 Btu?

Efficient cooling performance for small to medium-sized rooms up to 18-25 m²
Compact design and built-in wheels make it easy to move between rooms
User-friendly operation with an intuitive top LED display and functional remote control
Versatile 3-in-1 functionality including cooling, dehumidifying, and ventilation modes
Good build quality and reliable temperature control from a reputable brand
Includes an integrated anti-odor and anti-allergen air filter

What customers dislike about Ariston Mobis 9000 Btu?

Significantly noisier during active cooling compared to split system alternatives
Lacks integrated Wi-Fi connectivity and smart app support
Higher initial purchase price compared to equivalent budget competitors
The front air louvers/slats feel fragile and require gentle adjustment
Consumes more energy overall compared to traditional stationary window or split units

Expert reviews

itc.ua

18/07/2024

Summary of the review

Review of the portable air conditioner Ariston Mobis 9 - ITC.ua

The ITC.ua review highlights the Ariston Mobis 9 as a highly practical 9,000 BTU 3-in-1 mobile air conditioner for rooms up to 30 sq.m, featuring a compact tower design, Class A efficiency, and user-friendly touch controls. The device is lauded for its effective cooling, mobility, and anti-allergen filter, though the reviewer notes limitations such as a heavy 24.7 kg weight, lack of Wi-Fi app integration, and the necessity of manual condensate drainage.

telegraph.co.uk

02/07/2026

Summary of the review

The best portable air conditioners to consider during hot weather

The Telegraph's review of portable air conditioners identifies the Dreo 318S, Vonhaus, and Devola models as top performers, highlighting their rapid temperature reduction (up to 10°C in 88 minutes), quiet operation, smart functionality, and included window seals. However, the review notes drawbacks including inefficient eco modes, inaccurate dehumidification sensors, and a lack of window kits for some heavy models.

itc.ua

18/07/2024

Summary of the review

Review of the portable air conditioner Ariston Mobis 9 – an almost perfect partner for a hot summer

The ITC.ua review evaluates the 9,000 BTU Ariston Mobis 9 as an efficient, mobile solution for rooms up to 18 sq m, praising its eco-friendly R290 refrigerant, simple tool-free installation, and effective allergy filter. While highly portable, the unit's drawbacks include a loud maximum noise level of 63 dB, lack of Wi-Fi functionality, and the inherent single-hose limitation of creating negative pressure.

itc.ua

18/07/2024

Summary of the review

Ariston Mobis 9 Portable Air Conditioner Review - ITC.ua

The ITC.ua review gives the Ariston Mobis 9 portable air conditioner a 7.7/10, praising its high mobility, compact design, and ease of use, with effective cooling provided by an anti-odor filter and intuitive controls. While offering immediate, low-maintenance cooling, the unit is noted for high noise levels, increased energy consumption compared to split systems, and the potential need for additional window seal purchases.

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