Klarstein Metrobreeze Rom Review | 44 Data compared

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  • Avg. price in UK: ~£480
  • Avg. price in US: ~$650
  • Cooling capacity: 10,000 BTU/h
  • Maximum room size: 49
  • Maximum noise level: 64 dB
  • Heating function: no
  • Cooling Energy Efficiency Class: A+

Klarstein Metrobreeze Rom 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.

7.4

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%

7.3

Technical Score

20.0%

8.0

User score

Very good
7.3

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%

6.5

Performance

30.0%

8.3

Features

15.0%

8.3

Design

Very good
8.0

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%

8.1

User reviews

30.0%

7.8

Popularity

User score:
United Kingdom
amazon
4.0
(99)
amazon
4.0
(30)
United States
Amazon_logo.png
4.2
(47)

(Reviews last updated: August 2026)

Excellent
  • 7.4
    Bedroom use

    Score components:

    35.0%

    2.5

    Maximum noise level

    25.0%

    10

    Night mode

    20.0%

    10

    Timer

    20.0%

    10

    Remote control

  • 7.4
    Large rooms

    Score components:

    40.0%

    6.4

    Cooling capacity

    30.0%

    10

    Maximum room size

    20.0%

    4.2

    Airflow (high speed)

    10.0%

    10

    Airflow direction control

  • 4.4
    Year-round use

    Score components:

    40.0%

    4.0

    Heating function

    30.0%

    2.3

    Dehumidification capacity

    20.0%

    8.7

    Cooling energy efficiency class

    10.0%

    4.0

    Automatic fan speed

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Best prices in UK

Best rankings

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

Verdict

The Klarstein Metrobreeze Rom is a 3-in-1 portable air conditioner featuring cooling, dehumidifying, and three-speed fan modes with a 10,000 BTU (3.0 kW) capacity, structured for rooms between 28–42 m². It operates within an adjustable temperature range of 18–30 °C, utilizes eco-friendly R290 refrigerant, features a 24-hour programmable timer, and includes an A+ energy efficiency rating alongside built-in floor rollers and an included window seal kit. Its main advantages include powerful, cost-effective cooling, smart Wi-Fi app integration with voice control options, and an easy, non-permanent DIY installation. However, some users note downsides, including its bulky physical profile and a maximum operating noise level reaching up to 64 dB, which can feel loud for light sleepers.

Technical Specifications of portable air conditioner Klarstein Metrobreeze Rom

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%

6.5

Performance

30.0%

8.3

Features

15.0%

8.3

Design

7.3
Klarstein Metrobreeze Rom has a technical score of 7.3 points, which is higher than 70% 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%

8.1

User reviews

30.0%

7.8

Popularity

User score:
United Kingdom
amazon
4.0
(99)
amazon
4.0
(30)
United States
Amazon_logo.png
4.2
(47)

(Reviews last updated: August 2026)

8.0
Klarstein Metrobreeze Rom has a user score of 8.02 points, which is higher than 72.6% of products in this category.
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.
7.8
Klarstein Metrobreeze Rom has a popularity of 7.8 points, which is higher than 66.8% 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%

7.4

Overall score

40.0%

6.2

Price

7.1
Klarstein Metrobreeze Rom has a quality-to-price ratio of 7.1 points, which is higher than 54.2% 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
Klarstein Metrobreeze Rom 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

900 W
Klarstein Metrobreeze Rom draws 900 W, which is lower than the power draw of 75% of portable air conditioners and equal to that of 5.4% of portable air conditioners.
Cooling-mode power draw.
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+
Klarstein Metrobreeze Rom has cooling energy efficiency class A+, which ranks higher than 89.9% of portable air conditioners and equal to 8.9% of portable air conditioners.
Official EU cooling energy efficiency class.
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

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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

3
Klarstein Metrobreeze Rom offers 3 fan speeds, which is more than 36.8% of portable air conditioners and equal to 61.1% of portable air conditioners.
Manual discrete fan-speed levels counted; automatic and continuous modes were excluded.
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
Klarstein Metrobreeze Rom 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

automatic
Klarstein Metrobreeze Rom provides automatic airflow direction control, which ranks higher than 47.3% of portable air conditioners and equal to 52.7% 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

yes
Klarstein Metrobreeze Rom includes 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
Klarstein Metrobreeze Rom 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
Klarstein Metrobreeze Rom 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, black
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
Klarstein Metrobreeze Rom 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
Klarstein Metrobreeze Rom 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
Klarstein Metrobreeze Rom includes built-in handles for easier carrying. 99.5% of portable air conditioners feature handles.
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Klarstein Metrobreeze Rom vs the average portable air conditioner

  • 19 m² larger room coverage
    Klarstein Metrobreeze Rom covers a larger room area than the average portable air conditioner (49 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

    Klarstein Metrobreeze Rom covers a larger room area than the average portable air conditioner (49 m² vs 30 m²).49 m² vs 30 m²
  • Supports Wi-Fi
    Klarstein Metrobreeze Rom supports Wi-Fi, the average portable air conditioner does not.
    What it is: Wi-Fi connectivity lets the air conditioner communicate with a phone app or connected-home service.
    When it matters: Wi-Fi enables remote adjustments, schedules, and status checks beyond infrared remote range.

    Importance: HIGH

    Good value: yes

    Klarstein Metrobreeze Rom supports Wi-Fi, the average portable air conditioner does not.
  • Higher cooling energy efficiency class
    Klarstein Metrobreeze Rom has a better cooling energy efficiency class than the average portable air conditioner (A+ vs A).
    Official EU 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

    Klarstein Metrobreeze Rom has a better cooling energy efficiency class than the average portable air conditioner (A+ vs A).A+ vs A
  • Supports voice control
    Klarstein Metrobreeze Rom supports voice control, the average portable air conditioner does not.
    Voice control is supported through Alexa and/or Google Assistant.
    What it is: Voice control allows supported functions to be operated through a compatible voice assistant.
    When it matters: Hands-free commands are useful when the remote or phone is out of reach.

    Importance: MEDIUM

    Good value: yes

    Klarstein Metrobreeze Rom supports voice control, the average portable air conditioner does not.
  • 1000 BTU/h higher cooling capacity
    Klarstein Metrobreeze Rom 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

    Klarstein Metrobreeze Rom delivers higher cooling capacity than the average portable air conditioner (10000 BTU/h vs 9000 BTU/h).10000 BTU/h vs 9000 BTU/h
  • 100 W lower rated power draw
    Klarstein Metrobreeze Rom draws less power than the average portable air conditioner (900 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

    Klarstein Metrobreeze Rom draws less power than the average portable air conditioner (900 W vs 1000 W).900 W vs 1000 W
  • 8 cm shorter cabinet
    Klarstein Metrobreeze Rom is shorter than the average portable air conditioner (63 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

    Klarstein Metrobreeze Rom is shorter than the average portable air conditioner (63 cm vs 71 cm).63 cm vs 71 cm
  • 0.1 m longer power cord
    Klarstein Metrobreeze Rom has a longer power cord than the average portable air conditioner (1.9 m vs 1.8 m).
    What it is: Power cord length is the distance the unit can reach from a wall outlet without an extension lead.
    When it matters: A longer cord makes safe placement easier when suitable outlets are limited.

    Importance: LOW

    Good value: At least 1.8 m

    Klarstein Metrobreeze Rom has a longer power cord than the average portable air conditioner (1.9 m vs 1.8 m).1.9 m vs 1.8 m
  • 19 m² larger room coverage
    Klarstein Metrobreeze Rom covers a larger room area than the average portable air conditioner (49 m² vs 30 m²).
  • Higher cooling energy efficiency class
    Klarstein Metrobreeze Rom has a better cooling energy efficiency class than the average portable air conditioner (A+ vs A).
  • 1000 BTU/h higher cooling capacity
    Klarstein Metrobreeze Rom delivers higher cooling capacity than the average portable air conditioner (10000 BTU/h vs 9000 BTU/h).
  • 100 W lower rated power draw
    Klarstein Metrobreeze Rom draws less power than the average portable air conditioner (900 W vs 1000 W).
  • Supports Wi-Fi
    Klarstein Metrobreeze Rom supports Wi-Fi, the average portable air conditioner does not.
  • Supports voice control
    Klarstein Metrobreeze Rom supports voice control, the average portable air conditioner does not.
  • 8 cm shorter cabinet
    Klarstein Metrobreeze Rom is shorter than the average portable air conditioner (63 cm vs 71 cm).
  • 0.1 m longer power cord
    Klarstein Metrobreeze Rom has a longer power cord than the average portable air conditioner (1.9 m vs 1.8 m).
  • 5 cm narrower cabinet
    Klarstein Metrobreeze Rom is narrower than the average portable air conditioner (33 cm vs 38 cm).
  • 5.5% lower weight
    Klarstein Metrobreeze Rom is lighter than the average portable air conditioner (24.1 kg vs 25.5 kg).
  • 2 °C higher minimum temperature
    Klarstein Metrobreeze Rom has a higher minimum temperature setting than the average portable air conditioner (18 °C vs 16 °C).
  • No automatic fan-speed control
    Klarstein Metrobreeze Rom does not adjust fan speed automatically, while the average portable air conditioner does.
  • 2 °C lower maximum temperature
    Klarstein Metrobreeze Rom has a lower maximum temperature setting than the average portable air conditioner (30 °C vs 32 °C).
  • 5 dB louder minimum operation
    Klarstein Metrobreeze Rom is louder at minimum output than the average portable air conditioner (56 dB vs 51 dB).
    Lowest stated operating noise.
  • 20 m³/h lower high-speed airflow
    Klarstein Metrobreeze Rom delivers lower high-speed airflow than the average portable air conditioner (330 m³/h vs 350 m³/h).
  • 10.8 l/24 h lower dehumidification capacity
    Klarstein Metrobreeze Rom offers lower moisture removal than the average portable air conditioner (21.6 l/24 h vs 32.4 l/24 h).
  • 0.9 m shorter exhaust hose
    Klarstein Metrobreeze Rom has a shorter exhaust hose than the average portable air conditioner (0.6 m vs 1.5 m).
  • 12.5 cm deeper cabinet
    Klarstein Metrobreeze Rom is deeper than the average portable air conditioner (48 cm vs 35.5 cm).
  • 2.8% larger external volume
    Klarstein Metrobreeze Rom has a larger external volume than the average portable air conditioner (99792 cm³ vs 102623.407656 cm³).
  • 2 °C higher minimum temperature
    Klarstein Metrobreeze Rom has a higher minimum temperature setting than the average portable air conditioner (18 °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

    Klarstein Metrobreeze Rom has a higher minimum temperature setting than the average portable air conditioner (18 °C vs 16 °C).18 °C vs 16 °C
  • 10.8 l/24 h lower dehumidification capacity
    Klarstein Metrobreeze Rom offers lower moisture removal than the average portable air conditioner (21.6 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

    Klarstein Metrobreeze Rom offers lower moisture removal than the average portable air conditioner (21.6 l/24 h vs 32.4 l/24 h).21.6 l/24 h vs 32.4 l/24 h
  • No automatic fan-speed control
    Klarstein Metrobreeze Rom does not adjust fan speed automatically, while the average portable air conditioner does.
    What it is: Automatic fan speed lets the unit adjust airflow without manual speed changes.
    When it matters: Automatic adjustment improves convenience and can maintain a steadier room temperature.

    Importance: LOW

    Good value: yes

    Klarstein Metrobreeze Rom does not adjust fan speed automatically, while the average portable air conditioner does.
  • 2 °C lower maximum temperature
    Klarstein Metrobreeze Rom has a lower maximum temperature setting than the average portable air conditioner (30 °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

    Klarstein Metrobreeze Rom has a lower maximum temperature setting than the average portable air conditioner (30 °C vs 32 °C).30 °C vs 32 °C
  • 0.9 m shorter exhaust hose
    Klarstein Metrobreeze Rom has a shorter exhaust hose than the average portable air conditioner (0.6 m vs 1.5 m).
    What it is: Exhaust hose length is the maximum usable distance between the unit and its window vent connection.
    When it matters: A longer hose provides more placement flexibility when the window is not directly beside the unit.

    Importance: LOW

    Good value: At least 1.5 m

    Klarstein Metrobreeze Rom has a shorter exhaust hose than the average portable air conditioner (0.6 m vs 1.5 m).0.6 m vs 1.5 m
  • 5 dB louder minimum operation
    Klarstein Metrobreeze Rom is louder at minimum output than the average portable air conditioner (56 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

    Klarstein Metrobreeze Rom is louder at minimum output than the average portable air conditioner (56 dB vs 51 dB).56 dB vs 51 dB
  • 12.5 cm deeper cabinet
    Klarstein Metrobreeze Rom is deeper than the average portable air conditioner (48 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

    Klarstein Metrobreeze Rom is deeper than the average portable air conditioner (48 cm vs 35.5 cm).48 cm vs 35.5 cm
  • 20 m³/h lower high-speed airflow
    Klarstein Metrobreeze Rom delivers lower high-speed airflow than the average portable air conditioner (330 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

    Klarstein Metrobreeze Rom delivers lower high-speed airflow than the average portable air conditioner (330 m³/h vs 350 m³/h).330 m³/h vs 350 m³/h

Graphic comparison of Klarstein Metrobreeze Rom and other products in the Portable Air Conditioners category

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Third-party reviews

United States

(Reviews last updated: August 2026)

What customers like about Klarstein Metrobreeze Rom?

  • Highly effective at cooling small to medium rooms quickly
  • Excellent energy efficiency with an A+ rating that keeps electricity bills in check
  • Versatile 3-in-1 functionality operating as an air conditioner, dehumidifier, and fan
  • Smooth ground rollers and transport handles make it easy to move between rooms
  • Convenient control options via the top control panel, remote control, and Klarstein smart app integration
  • Comes with included accessories such as an exhaust hose and window sealing kits

What customers dislike about Klarstein Metrobreeze Rom?

  • Operational noise can be quite loud and disruptive, especially for light sleepers during nighttime use
  • The unit has a relatively large, bulky, and heavy physical footprint
  • Draining the water tank can be awkward and inconvenient due to the position of the drain plug
  • Occasional software connectivity issues with the mobile app failing to switch modes smoothly

Expert reviews

P
produkt-tests.com
14/07/2016
Summary of the review
L
lite-magazin.de
28/06/2016
Summary of the review
P
produkt-tests.com
14/07/2016
Summary of the review

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