Scored using Portable Air Conditioners Methodology v1.0
Portable Air Conditioners Methodology v1.0
Mathematical & Unbiased Scoring
Products in this category are scored under Frontum Portable Air Conditioners Methodology v1.0: technical specifications plus authentic consumer ratings, with 0% commercial bias.
Explore Portable Air Conditioners Methodology v1.0

ZERO BREEZE Mark 2 Review | 44 Data compared

Avg. price:~£900Cooling capacity:2300 BTU/hMaximum room size:4 m²Maximum noise level:52 dBHeating function:noCooling Energy Efficiency Class:?

ZERO BREEZE Mark 2 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.

ZERO BREEZE Mark 2
6.2/10

Overall score

Score
6.2/ 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
▼
<55-66-77-88-99-10
Score components

80%

6.1

Technical score

20%

6.6

User score

▼Worse than 85% of portable air conditioners
4.9

Value for money

Value for money
4.9/ 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
▼
<55-66-77-88-99-10
Score components

70%

6.2

Overall score

30%

2.0

Price

▼Worse than 99%
6.1

Technical score

Technical score
6.1/ 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
▼
<55-66-77-88-99-10
Score components

55%

5.3

Performance

30%

6.8

Features

15%

7.2

Design

▼Worse than 80%
6.6

User score

User score
6.6/ 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
▼
<55-66-77-88-99-10
Score components

70%

6.5

User ratings

30%

6.9

Number of reviews

Based on ratings from across the web.
▼Worse than 93%
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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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Technical Specifications of portable air conditioner ZERO BREEZE Mark 2

Technical score
Technical score
6.1/ 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
▼
<55-66-77-88-99-10
Score components:

55%

5.3

Performance

30%

6.8

Features

15%

7.2

Design

6.1
User score
User score
6.6/ 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
▼
<55-66-77-88-99-10
Score components

70%

6.5

User ratings

30%

6.9

Number of reviews

Based on ratings from across the web.
6.6
Popularity
Popularity
6.9/ 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
▼
<55-66-77-88-99-10
Popularity:
ZERO BREEZE Mark 2 has a popularity score of 6.9 points, which is higher than 57.9% of products in this category.
6.9
Value for money
Value for money
4.9/ 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
▼
<55-66-77-88-99-10
Score components:

70%

6.2

Overall score

30%

2.0

Price

4.9
Cooling capacity
2,300 BTU/h
This portable air conditioner delivers 2,300 BTU/h cooling capacity, which is lower than that of 100% of portable air conditioners.
Rated input power
240 W
This portable air conditioner draws 240 W, which is lower than the power draw of 96.4% of portable air conditioners.
Cooling-mode power draw.
Cooling Energy Efficiency Class
?
Heating energy efficiency class
?
Number of speeds
4
This portable air conditioner offers 4 fan speeds, which is more than 98.4% of portable air conditioners and equal to 1.1% of portable air conditioners.
Manual discrete fan-speed levels counted; automatic and continuous modes were excluded.
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
manual
This portable air conditioner provides manual airflow direction control, which ranks lower than 53.2% of portable air conditioners and equal to 19.4% 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
no
This portable air conditioner does not include a built-in timer. 99.5% of portable air conditioners feature a timer.
Maximum timer duration
?
Show more
Color
grey
Display
yes
This portable air conditioner includes an integrated display. 99.5% of portable air conditioners feature a display.
Control type
physical
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

ZERO BREEZE Mark 2 vs the average portable air conditioner

246810TotalPerformanceFeaturesDesign
  • Uses an inverter compressor
    This portable air conditioner uses an inverter compressor, the average portable air conditioner does not.
  • 760 W lower rated power draw
    This portable air conditioner draws less power than the average portable air conditioner (240 W vs 1000 W).
    Cooling-mode power draw.
    240 W vs 1,000 W
  • 12 dB quieter at maximum output
    This portable air conditioner is quieter at maximum output than the average portable air conditioner (52 dB vs 64 dB).
    Highest stated operating noise.
    52 dB vs 64 dB
  • 11 dB quieter minimum operation
    This portable air conditioner is quieter at minimum output than the average portable air conditioner (40 dB vs 51 dB).
    Lowest stated operating noise.
    40 dB vs 51 dB
  • 70.6% lower weight
    This portable air conditioner is lighter than the average portable air conditioner (7.5 kg vs 25.5 kg).
    7.5 kg vs 25.5 kg
  • 1 more fan speeds
    This portable air conditioner offers more fan speeds than the average portable air conditioner (4 vs 3).
    Manual discrete fan-speed levels counted; automatic and continuous modes were excluded.
    4 vs 3
  • 12 cm narrower cabinet
    This portable air conditioner is narrower than the average portable air conditioner (26 cm vs 38 cm).
    26 cm vs 38 cm
  • 43 cm shorter cabinet
    This portable air conditioner is shorter than the average portable air conditioner (28 cm vs 71 cm).
    28 cm vs 71 cm
  • 14.7% more popular
    ZERO BREEZE Mark 2 is more popular than the average portable air conditioner (6.89 vs 6).
    6.89 vs 6.01
  • Uses an inverter compressor
    This portable air conditioner uses an inverter compressor, the average portable air conditioner does not.
  • 760 W lower rated power draw
    This portable air conditioner draws less power than the average portable air conditioner (240 W vs 1000 W).
    Cooling-mode power draw.
    240 W vs 1,000 W
  • 12 dB quieter at maximum output
    This portable air conditioner is quieter at maximum output than the average portable air conditioner (52 dB vs 64 dB).
    Highest stated operating noise.
    52 dB vs 64 dB
  • 11 dB quieter minimum operation
    This portable air conditioner is quieter at minimum output than the average portable air conditioner (40 dB vs 51 dB).
    Lowest stated operating noise.
    40 dB vs 51 dB
  • 1 more fan speeds
    This portable air conditioner offers more fan speeds than the average portable air conditioner (4 vs 3).
    Manual discrete fan-speed levels counted; automatic and continuous modes were excluded.
    4 vs 3
  • 70.6% lower weight
    This portable air conditioner is lighter than the average portable air conditioner (7.5 kg vs 25.5 kg).
    7.5 kg vs 25.5 kg
  • 12 cm narrower cabinet
    This portable air conditioner is narrower than the average portable air conditioner (26 cm vs 38 cm).
    26 cm vs 38 cm
  • 43 cm shorter cabinet
    This portable air conditioner is shorter than the average portable air conditioner (28 cm vs 71 cm).
    28 cm vs 71 cm
  • 6,700 BTU/h lower cooling capacity
    This portable air conditioner delivers lower cooling capacity than the average portable air conditioner (2300 BTU/h vs 9000 BTU/h).
    2,300 BTU/h vs 9,000 BTU/h
  • 26 m² smaller room coverage
    This portable air conditioner covers a smaller room area than the average portable air conditioner (4 m² vs 30 m²).
    Maximum recommended cooling area in m².
    4 m² vs 30 m²
  • 90 m³/h lower high-speed airflow
    This portable air conditioner delivers lower high-speed airflow than the average portable air conditioner (260 m³/h vs 350 m³/h).
    260 m³/h vs 350 m³/h
  • No automatic fan-speed control
    This portable air conditioner does not adjust fan speed automatically, while the average portable air conditioner does.
  • More limited airflow control
    This portable air conditioner provides manual airflow direction control, while the average portable air conditioner offers automatic.
    manual vs automatic
  • No installation kit
    This portable air conditioner does not include a window installation kit, while the average portable air conditioner does.
    Window/installation kit is absent or sold separately.
  • No timer
    This portable air conditioner does not include a timer, while the average portable air conditioner does.
  • 0.3 m shorter exhaust hose
    This portable air conditioner has a shorter exhaust hose than the average portable air conditioner (1.2 m vs 1.5 m).
    1.2 m vs 1.5 m
  • 2.57x more expensive
    ZERO BREEZE Mark 2 is more expensive than the average portable air conditioner (£900 vs £350).
    £900 vs £350
  • 44.9% worse value for money
    ZERO BREEZE Mark 2 offers worse value for money than the average portable air conditioner (4.92 vs 7.1).
    4.92 vs 7.13
  • 21.4% lower user score
    User score
    6.6/ 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
    ▼
    ▼
    <55-66-77-88-99-10
    ZERO BREEZE Mark 2
    the average portable air conditioner
    ZERO BREEZE Mark 2 has a lower user score than the average portable air conditioner (6.59 vs 8.000).
    6.59 vs 8
  • 6,700 BTU/h lower cooling capacity
    This portable air conditioner delivers lower cooling capacity than the average portable air conditioner (2300 BTU/h vs 9000 BTU/h).
    2,300 BTU/h vs 9,000 BTU/h
  • 26 m² smaller room coverage
    This portable air conditioner covers a smaller room area than the average portable air conditioner (4 m² vs 30 m²).
    Maximum recommended cooling area in m².
    4 m² vs 30 m²
  • 90 m³/h lower high-speed airflow
    This portable air conditioner delivers lower high-speed airflow than the average portable air conditioner (260 m³/h vs 350 m³/h).
    260 m³/h vs 350 m³/h
  • No automatic fan-speed control
    This portable air conditioner does not adjust fan speed automatically, while the average portable air conditioner does.
  • More limited airflow control
    This portable air conditioner provides manual airflow direction control, while the average portable air conditioner offers automatic.
    manual vs automatic
  • No timer
    This portable air conditioner does not include a timer, while the average portable air conditioner does.
  • No installation kit
    This portable air conditioner does not include a window installation kit, while the average portable air conditioner does.
    Window/installation kit is absent or sold separately.
  • 0.3 m shorter exhaust hose
    This portable air conditioner has a shorter exhaust hose than the average portable air conditioner (1.2 m vs 1.5 m).
    1.2 m vs 1.5 m
  • No wheels
    This portable air conditioner does not include wheels, while the average portable air conditioner does.
  • 15.5 cm deeper cabinet
    This portable air conditioner is deeper than the average portable air conditioner (51 cm vs 35.5 cm).
    51 cm vs 35.5 cm
  • 63.8% larger external volume
    This portable air conditioner has a larger external volume than the average portable air conditioner (37128 cm³ vs 102623.4 cm³).
    37,128 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

W
wired.com
05/06/2022
Summary of the review
T
the-gadgeteer.com
07/08/2023
Summary of the review
T
trail4runner.com
19/06/2024
Summary of the review
A
airconditionerlab.com
25/06/2025
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4
4wdtalk.com
20/06/2023
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independentgolfreviews.com
16/07/2024
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falt.haus
19/09/2025
Summary of the review
H
hajda.de
06/06/2024
Summary of the review
F
falt.haus
19/09/2025
Summary of the review
P
peripleties.fr
15/05/2023
Summary of the review
G
gpxadventures.com
29/08/2024
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Third-party reviews

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

What we like about ZERO BREEZE Mark 2

  • Extremely portable and lightweight (approx. 30 lbs with battery)
  • Effective cooling for small spaces like tents and campers
  • Fast cooling performance, lowering temperatures quickly
  • Low power consumption (200W-240W) compared to other brands
  • Versatile power options including dedicated battery, wall outlet, and solar
  • Simple setup and user-friendly design

What we don't like about ZERO BREEZE Mark 2

  • High cost
  • Short battery runtime (approx. 3-5 hours)
  • Battery and unit cannot be charged simultaneously without additional, separate purchase of a power extension dock
  • Proprietary battery connector rather than a more standard industry connection
  • Limited to very small, enclosed spaces for maximum effectiveness

Verdict

The ZERO BREEZE Mark 2 is a compact, battery-powered portable air conditioner designed for off-grid environments like camping tents, RVs, and vans. It features a micro twin-cylinder inverter compressor that delivers 2,300 BTUs of cooling capacity while consuming a low 240 watts of power. Key advantages include its lightweight 16.5-pound frame, an integrated dual-hose exhaust system, and a detachable 24V lithium-ion battery that provides 3 to 5 hours of portable operation. However, notable drawbacks include its high retail price, its limitation to spot cooling spaces under 40 square feet rather than cooling entire vehicles, and the inability to simultaneously run the AC unit and charge the battery from the same single power adapter.

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