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Inventor Magic M3GHP290-12BS Review | 44 Data compared

Avg. price:~£310Cooling capacity:12000 BTU/hMaximum room size:23 m²Maximum noise level:64 dBHeating function:yesCooling Energy Efficiency Class:A

Inventor Magic M3GHP290-12BS 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.

Inventor Magic M3GHP290-12BS
7.9/10

Overall score

Score
7.9/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
â–² Better than 87% of models
Score components

80%

7.8

Technical score

20%

8.1

User score

â–²Better than 87% of portable air conditioners
7.9

Value for money

Value for money
7.9/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
★ Better than 95% of models
Score components

70%

7.9

Overall score

30%

7.9

Price

★Better than 95%
7.8

Technical score

Technical score
7.8/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
â–² Better than 85% of models
Score components

55%

7.5

Performance

30%

8.4

Features

15%

7.7

Design

â–²Better than 85%
8.1

User score

User score
8.1/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
â–² Better than 77% of models
Score components

70%

8.2

User ratings

30%

8.0

Number of reviews

Based on ratings from across the web.
â–²Better than 77%
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Best prices
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Best rankings
Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.
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Portable Air Conditioners model ranking

Ranked #13 of 191 models in Portable Air Conditioners (Overall score)

Technical Specifications of portable air conditioner Inventor Magic M3GHP290-12BS

Technical score
Technical score
7.8/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
â–² Better than 85% of models
Score components:

55%

7.5

Performance

30%

8.4

Features

15%

7.7

Design

7.8
User score
User score
8.1/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
â–² Better than 77% of models
Score components

70%

8.2

User ratings

30%

8.0

Number of reviews

Based on ratings from across the web.
8.1
Popularity
Popularity
8.0/ 10
✕
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.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 70% of models
Popularity:
Inventor Magic M3GHP290-12BS has a popularity score of 8 points, which is higher than 70% of products in this category.
8.0
Value for money
Value for money
7.9/ 10
✕
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 distribution
â–¼
<55-66-77-88-99-10
★ Better than 95% of models
Score components:

70%

7.9

Overall score

30%

7.9

Price

7.9
Cooling capacity
12,000 BTU/h
Market range: <7k BTU/h – >12k BTU/h
This portable air conditioner delivers 12,000 BTU/h cooling capacity, which is higher than that of 71.3% of portable air conditioners and equal to that of 19.7% of portable air conditioners.
Rated input power
?
Cooling Energy Efficiency Class
A
This portable air conditioner 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
A+
This portable air conditioner has heating energy efficiency class A+, which ranks higher than 50% of portable air conditioners and equal to 37.5% of portable air conditioners.
Number of speeds
3
Market range: <0 – >5
This portable air conditioner offers 3 fan speeds, which is more than 36.8% of portable air conditioners and equal to 61.1% of portable air conditioners.
Show more
Fan-only mode
yes
This portable air conditioner includes a fan-only mode. 99.5% of portable air conditioners support this mode.
Airflow direction control
automatic
This portable air conditioner 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
yes
This portable air conditioner includes a dedicated night mode. 74.3% of portable air conditioners offer night mode.
Timer
yes
This portable air conditioner includes a built-in timer. 99.5% of portable air conditioners feature a timer.
Maximum timer duration
24 hours
Market range: <0 hours – >25 hours
This portable air conditioner 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.
Show more
Color
white
Display
yes
This portable air conditioner includes an integrated display. 99.5% of portable air conditioners feature a display.
Control type
touch
Remote control
yes
This portable air conditioner comes with a remote control. 99% of portable air conditioners include a remote.
Handles
yes
This portable air conditioner includes built-in handles for easier carrying. 99.5% of portable air conditioners feature handles.
Show more

Inventor Magic M3GHP290-12BS vs the average portable air conditioner

246810TotalPerformanceFeaturesDesign
  • 3,000 BTU/h higher cooling capacity
    This portable air conditioner delivers higher cooling capacity than the average portable air conditioner (12000 BTU/h vs 9000 BTU/h).
    12,000 BTU/h vs 9,000 BTU/h
  • 45.6 l/24 h higher dehumidification capacity
    This portable air conditioner offers higher moisture removal than the average portable air conditioner (78 l/24 h vs 32.4 l/24 h).
    78 l/24 h vs 32.4 l/24 h
  • 70 m³/h higher high-speed airflow
    This portable air conditioner delivers higher high-speed airflow than the average portable air conditioner (420 m³/h vs 350 m³/h).
    420 m³/h vs 350 m³/h
  • 105 m³/h higher low-speed airflow
    This portable air conditioner delivers higher low-speed airflow than the average portable air conditioner (355 m³/h vs 250 m³/h).
    355 m³/h vs 250 m³/h
  • Provides heating
    This portable air conditioner provides heating, the average portable air conditioner does not.
  • 0.1 m longer exhaust hose
    This portable air conditioner has a longer exhaust hose than the average portable air conditioner (1.6 m vs 1.5 m).
    1.6 m vs 1.5 m
  • 10.4% better value for money
    Inventor Magic M3GHP290-12BS offers better value for money than the average portable air conditioner (7.87 vs 7.1).
    7.87 vs 7.13
  • 1.9% higher user score
    User score
    8.1/ 10
    ✕
    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 distribution
    â–¼
    â–¼
    <55-66-77-88-99-10
    Inventor Magic M3GHP290-12BS
    the average portable air conditioner
    Inventor Magic M3GHP290-12BS has a higher user score than the average portable air conditioner (8.15 vs 8.000).
    8.15 vs 8
  • 10.4% better value for money
    Inventor Magic M3GHP290-12BS offers better value for money than the average portable air conditioner (7.87 vs 7.1).
    7.87 vs 7.13
  • 1.9% higher user score
    User score
    8.1/ 10
    ✕
    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 distribution
    â–¼
    â–¼
    <55-66-77-88-99-10
    Inventor Magic M3GHP290-12BS
    the average portable air conditioner
    Inventor Magic M3GHP290-12BS has a higher user score than the average portable air conditioner (8.15 vs 8.000).
    8.15 vs 8
  • 33.7% more popular
    Inventor Magic M3GHP290-12BS is more popular than the average portable air conditioner (8.03 vs 6).
    8.03 vs 6.01
  • 12.9% cheaper
    Inventor Magic M3GHP290-12BS is cheaper than the average portable air conditioner (£310 vs £350).
    £310 vs £350
  • 3,000 BTU/h higher cooling capacity
    This portable air conditioner delivers higher cooling capacity than the average portable air conditioner (12000 BTU/h vs 9000 BTU/h).
    12,000 BTU/h vs 9,000 BTU/h
  • 70 m³/h higher high-speed airflow
    This portable air conditioner delivers higher high-speed airflow than the average portable air conditioner (420 m³/h vs 350 m³/h).
    420 m³/h vs 350 m³/h
  • 105 m³/h higher low-speed airflow
    This portable air conditioner delivers higher low-speed airflow than the average portable air conditioner (355 m³/h vs 250 m³/h).
    355 m³/h vs 250 m³/h
  • 45.6 l/24 h higher dehumidification capacity
    This portable air conditioner offers higher moisture removal than the average portable air conditioner (78 l/24 h vs 32.4 l/24 h).
    78 l/24 h vs 32.4 l/24 h
  • Provides heating
    This portable air conditioner provides heating, the average portable air conditioner does not.
  • 0.1 m longer exhaust hose
    This portable air conditioner has a longer exhaust hose than the average portable air conditioner (1.6 m vs 1.5 m).
    1.6 m vs 1.5 m
  • 1 °C higher minimum temperature
    This portable air conditioner has a higher minimum temperature setting than the average portable air conditioner (17 °C vs 16 °C).
    17 °C vs 16 °C
  • 34.9% higher weight
    This portable air conditioner is heavier than the average portable air conditioner (34.4 kg vs 25.5 kg).
    34.4 kg vs 25.5 kg
  • 7 m² smaller room coverage
    This portable air conditioner covers a smaller room area than the average portable air conditioner (23 m² vs 30 m²).
    23 m² vs 30 m²
  • 2 °C lower maximum temperature
    This portable air conditioner has a lower maximum temperature setting than the average portable air conditioner (30 °C vs 32 °C).
    30 °C vs 32 °C
  • 8.7 cm wider cabinet
    This portable air conditioner is wider than the average portable air conditioner (46.7 cm vs 38 cm).
    46.7 cm vs 38 cm
  • 3 dB louder minimum operation
    This portable air conditioner is louder at minimum output than the average portable air conditioner (54 dB vs 51 dB).
    54 dB vs 51 dB
  • 5.5 cm taller cabinet
    This portable air conditioner is taller than the average portable air conditioner (76.5 cm vs 71 cm).
    76.5 cm vs 71 cm
  • 4.2 cm deeper cabinet
    This portable air conditioner is deeper than the average portable air conditioner (39.7 cm vs 35.5 cm).
    39.7 cm vs 35.5 cm
  • 1 °C higher minimum temperature
    This portable air conditioner has a higher minimum temperature setting than the average portable air conditioner (17 °C vs 16 °C).
    17 °C vs 16 °C
  • 2 °C lower maximum temperature
    This portable air conditioner has a lower maximum temperature setting than the average portable air conditioner (30 °C vs 32 °C).
    30 °C vs 32 °C
  • 7 m² smaller room coverage
    This portable air conditioner covers a smaller room area than the average portable air conditioner (23 m² vs 30 m²).
    23 m² vs 30 m²
  • 3 dB louder minimum operation
    This portable air conditioner is louder at minimum output than the average portable air conditioner (54 dB vs 51 dB).
    54 dB vs 51 dB
  • 34.9% higher weight
    This portable air conditioner is heavier than the average portable air conditioner (34.4 kg vs 25.5 kg).
    34.4 kg vs 25.5 kg
  • 8.7 cm wider cabinet
    This portable air conditioner is wider than the average portable air conditioner (46.7 cm vs 38 cm).
    46.7 cm vs 38 cm
  • 5.5 cm taller cabinet
    This portable air conditioner is taller than the average portable air conditioner (76.5 cm vs 71 cm).
    76.5 cm vs 71 cm
  • 4.2 cm deeper cabinet
    This portable air conditioner is deeper than the average portable air conditioner (39.7 cm vs 35.5 cm).
    39.7 cm vs 35.5 cm
  • 38.2% larger external volume
    This portable air conditioner has a larger external volume than the average portable air conditioner (141830.2 cm³ vs 102623.4 cm³).
    141,830.235 cm³ vs 102,623.407656 cm³

Video reviews

Hands-on testing, unboxing, and real-world video evaluations

Expert reviews

In-depth analysis and verdict from leading tech publications

M
mightygadget.co.uk
22/07/2021
Summary of the review
Inventor Magic 12000BTU Portable Air Conditioner Review

Third-party reviews

Based on ratings from across the web.
Reviews last updated: August 2026 · How we calculate this

What we like about Inventor Magic M3GHP290-12BS

  • Delivers effective and instant cooling relief for moderately large spaces with its 12,000 BTU capacity.
  • Highly versatile 5-in-1 functionality that covers cooling, heating, fan, dehumidifier, and an automatic swing mode.
  • Equipped with smooth-rolling omnidirectional casters that make it very easy to move between rooms on the same floor.
  • Features a user-friendly digital LED display, responsive touch controls, and a fully functional remote control.
  • Eco-friendly operation utilizing a self-evaporating system and R290 climate-friendly refrigerant with low global warming potential.
  • Reasonably priced and offers a more budget-friendly alternative compared to prominent big-brand names.

What we don't like about Inventor Magic M3GHP290-12BS

  • Operates with a high noise level (up to 64 dB), making it difficult or impossible for light sleepers to use overnight.
  • The physical body of the unit is heavy, large, and bulky to store when it is not in use.
  • The included flexible exhaust hose and window kit installation can be awkward, messy-looking, and difficult to fit securely on certain window types.
  • Like most portable single-hose air conditioners, it is less energy-efficient overall than permanent split-system alternatives.

Verdict

The Inventor Magic M3GHP290-12BS is a versatile 5-in-1 portable air conditioner delivering 12,000 BTU/h (3.52 kW) of cooling and 10,000 BTU/h (2.93 kW) of heating, alongside dehumidifying (78 L/day) and fan modes. It utilizes eco-friendly R290 refrigerant with an A/A+ energy rating (consuming 1,350W for cooling and 1,045W for heating), and it features automatic blade movement, a self-evaporating system, an included window kit, and a "Follow Me" remote sensor. Key pros include high seasonal efficiency, quick temperature regulation for spaces up to 23 square meters, and convenient mobility via omnidirectional casters; however, it is relatively heavy at 34.4 kg and runs loudly with a sound power level of 64 dB(A).

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