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PureMate PM405B Review | 48 Data compared

Avg. price:~£25Dehumidification capacity:0.3 L/dayMaximum room area:15 m²Maximum noise level:30 dB

PureMate PM405B Review: Compare 48 specifications and user reviews to see how this product ranks in the Dehumidifiers category and whether it is worth buying.

3.1

Overall score

Score
3.1/ 10
✕
What it is
An overall evaluation of the dehumidifier, combining technical performance and user feedback.
When it matters
When you want a quick, balanced view of the strongest dehumidifiers for controlling excess moisture.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 99% of models
Score components

90%

2.5

Technical Score

10%

8.5

User score

â–¼Worse than 99% of dehumidifiers
2.5

Technical Score

Technical score
2.5/ 10
✕
What it is
An assessment of the dehumidifier's technical performance across three areas: performance, features, and design.
When it matters
When you want to compare moisture-removal capacity, room coverage, noise, efficiency, functions, and portability.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 99% of models
Score components

80%

2.5

Performance

15%

1.0

Features

5%

7.3

Design

â–¼Worse than 99% of dehumidifiers
8.5

User score

User score
8.5/ 10
✕
What it is
A score combining user ratings with the number of reviews received by the dehumidifier.
When it matters
When you want to understand day-to-day reliability and owner satisfaction over time.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 69% of models
Score components

70%

8.3

User ratings

30%

9.0

Number of reviews

Based on 1,762 buyer reviews from online shops.
Read buyer reviews on Amazon →
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
â–²Better than 69% of dehumidifiers
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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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Verdict

The PureMate PM405B is a compact and lightweight mini dehumidifier designed for small rooms up to 15m² such as wardrobes, caravans, or bathrooms. Operating on an energy-efficient 23W power supply, it utilizes compressor-free thermoelectric Peltier cooling technology to extract up to 300ml of moisture per day into its 600ml water tank. Key advantages include its whisper-quiet operation, an automatic shut-off safety sensor with an LED full-tank indicator to prevent leaks, and high portability with its 1.1 kg frame and 15.4 x 21.8 x 13 cm dimensions. However, its small 600ml capacity and low extraction rate make it entirely unsuitable for large spaces or treating severe damp and flooding issues.

Technical Specifications of dehumidifier PureMate PM405B

Technical Score
Technical score
2.5/ 10
✕
What it is
An assessment of the dehumidifier's technical performance across three areas: performance, features, and design.
When it matters
When you want to compare moisture-removal capacity, room coverage, noise, efficiency, functions, and portability.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 99% of models
Score components:

80%

2.5

Performance

15%

1.0

Features

5%

7.3

Design

2.5
PureMate PM405B has a technical score of 2.5 points, lower than 100% of dehumidifiers.
User score
User score
8.5/ 10
✕
What it is
A score combining user ratings with the number of reviews received by the dehumidifier.
When it matters
When you want to understand day-to-day reliability and owner satisfaction over time.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 69% of models
Score components

70%

8.3

User ratings

30%

9.0

Number of reviews

Based on 1,762 buyer reviews from online shops.
Read buyer reviews on Amazon →
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
8.5
PureMate PM405B has a user score of 8.49 points, higher than 69% of dehumidifiers.
Popularity
Popularity
9.0/ 10
✕
What it is
An indicator based on how many user reviews the dehumidifier has received.
When it matters
When you prefer a widely purchased and extensively reviewed dehumidifier.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 85% of models
Popularity:
PureMate PM405B has a popularity score of 9 points, higher than 84.5% of dehumidifiers.
9.0
PureMate PM405B has a popularity score of 9 points, higher than 84.5% of dehumidifiers.
Ratio quality/price
Value for money
5.2/ 10
✕
What it is
An indicator combining the dehumidifier's overall evaluation with its price.
When it matters
When you want strong moisture-control performance and useful features for the money.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 97% of models
Score components:

60%

3.1

Overall score

40%

10

Price

5.2
PureMate PM405B has a value-for-money score of 5.2 points, lower than 95.5% of dehumidifiers.
Technology
condensing
Power
23 W
Power
23 W
★ Better than 90% of models
Market range: <23 W – >570 W
This dehumidifier draws 23 W, which is lower than the power draw of 89.8% of dehumidifiers and equal to that of 5.6% of dehumidifiers.
Dehumidification capacity
0.3 L/day
Dehumidification capacity
0.3 L/day
â–¼ Worse than 91% of models
Market range: <0.35 L/day – >30 L/day
This dehumidifier removes up to 0.3 L/day, which is lower than the daily extraction of 91.2% of dehumidifiers and equal to that of 3.9% of dehumidifiers.
Maximum airflow rate
80 m³/h
Maximum airflow rate
80 m³/h
â–¼ Worse than 95% of models
Market range: <95 m³/h – >250 m³/h
This dehumidifier delivers a maximum airflow of 80 m³/h, which is lower than that of 94.9% of dehumidifiers and equal to that of 3.2% of dehumidifiers.
Airflow rate 80 m³/h
Maximum room area
15 m²
Maximum room area
15 m²
â–¼ Worse than 88% of models
Market range: <15 m² – >90 m²
This dehumidifier is rated for rooms up to 15 m², which is smaller than that of 88.1% of dehumidifiers and equal to that of 8.5% of dehumidifiers.
Show more
Fan
yes
Drying mode
no
Anti-freeze
no
Automatic shut-off when full
yes
Timer
no
Show more
Color
black
Material
plastic
Display
no
Display position
N/A
Control type
buttons
Show more

PureMate PM405B vs the average dehumidifier

246810TotalPerformanceFeaturesDesign
  • 13 dB lower maximum noise
    Maximum noise level
    30 dB
    ★ Better than 97% of models
    Market range: <35 dB – >50 dB
    This dehumidifier is quieter at maximum fan speed than the average dehumidifier (30 dB vs 43 dB).
    30 dB vs 43 dB
  • 8 °C higher maximum temperature
    Maximum operating temperature
    40 °C
    ★ Better than 93% of models
    Market range: <30 °C – >35 °C
    This dehumidifier tolerates hotter ambient conditions than the average dehumidifier (40 °C vs 32 °C).
    40 °C vs 32 °C
  • 247 W lower power draw
    Power
    23 W
    ★ Better than 90% of models
    Market range: <23 W – >570 W
    This dehumidifier draws less power than the average dehumidifier (23 W vs 270 W).
    23 W vs 270 W
  • 90% lighter
    Weight
    1.1 kg
    ★ Better than 92% of models
    Market range: <1.2 kg – >16 kg
    This dehumidifier is lighter than the average dehumidifier (1.1 kg vs 11 kg). The average dehumidifier weighs 11 kg.
    1.1 kg vs 11 kg
  • 28.2 cm shorter body
    Height
    21.8 cm
    ★ Better than 96% of models
    Market range: <24 cm – >60 cm
    This dehumidifier has a lower profile than the average dehumidifier (21.8 cm vs 50 cm).
    21.8 cm vs 50 cm
  • 16.6 cm narrower body
    Width
    15.4 cm
    ★ Better than 91% of models
    Market range: <15.5 cm – >38.5 cm
    This dehumidifier has a narrower front profile than the average dehumidifier (15.4 cm vs 32 cm).
    15.4 cm vs 32 cm
  • 10 cm shallower body
    Depth
    13 cm
    ★ Better than 90% of models
    Market range: <13 cm – >29 cm
    This dehumidifier sits flatter against walls than the average dehumidifier (13 cm vs 23 cm).
    13 cm vs 23 cm
  • 6x cheaper
    PureMate PM405B is cheaper than the average dehumidifier (£25 vs £150).
    £25 vs £150
  • 6x cheaper
    PureMate PM405B is cheaper than the average dehumidifier (£25 vs £150).
    £25 vs £150
  • 26.5% more popular
    PureMate PM405B has a higher popularity score than the average dehumidifier (8.96 vs 7.1).
    8.96 vs 7.08
  • 4.3% higher user score
    User score
    8.5/ 10
    ✕
    What it is
    A score combining user ratings with the number of reviews received by the dehumidifier.
    When it matters
    When you want to understand day-to-day reliability and owner satisfaction over time.
    Score distribution
    â–¼
    â–¼
    <55-66-77-88-99-10
    PureMate PM405B
    the average dehumidifier
    ★ Better than 92% of models
    PureMate PM405B has a higher user score than the average dehumidifier (8.49 vs 8.145).
    8.49 vs 8.15
  • 13 dB lower maximum noise
    Maximum noise level
    30 dB
    ★ Better than 97% of models
    Market range: <35 dB – >50 dB
    This dehumidifier is quieter at maximum fan speed than the average dehumidifier (30 dB vs 43 dB).
    30 dB vs 43 dB
  • 8 °C higher maximum temperature
    Maximum operating temperature
    40 °C
    ★ Better than 93% of models
    Market range: <30 °C – >35 °C
    This dehumidifier tolerates hotter ambient conditions than the average dehumidifier (40 °C vs 32 °C).
    40 °C vs 32 °C
  • 247 W lower power draw
    Power
    23 W
    ★ Better than 90% of models
    Market range: <23 W – >570 W
    This dehumidifier draws less power than the average dehumidifier (23 W vs 270 W).
    23 W vs 270 W
  • 90% lighter
    Weight
    1.1 kg
    ★ Better than 92% of models
    Market range: <1.2 kg – >16 kg
    This dehumidifier is lighter than the average dehumidifier (1.1 kg vs 11 kg). The average dehumidifier weighs 11 kg.
    1.1 kg vs 11 kg
  • 28.2 cm shorter body
    Height
    21.8 cm
    ★ Better than 96% of models
    Market range: <24 cm – >60 cm
    This dehumidifier has a lower profile than the average dehumidifier (21.8 cm vs 50 cm).
    21.8 cm vs 50 cm
  • 16.6 cm narrower body
    Width
    15.4 cm
    ★ Better than 91% of models
    Market range: <15.5 cm – >38.5 cm
    This dehumidifier has a narrower front profile than the average dehumidifier (15.4 cm vs 32 cm).
    15.4 cm vs 32 cm
  • 10 cm shallower body
    Depth
    13 cm
    ★ Better than 90% of models
    Market range: <13 cm – >29 cm
    This dehumidifier sits flatter against walls than the average dehumidifier (13 cm vs 23 cm).
    13 cm vs 23 cm
  • 13.2 L/day lower extraction capacity
    Dehumidification capacity
    0.3 L/day
    â–¼ Worse than 91% of models
    Market range: <0.35 L/day – >30 L/day
    This dehumidifier delivers lower moisture extraction than the average dehumidifier (0.3 L/day vs 13.5 L/day).
    0.3 L/day vs 13.5 L/day
  • 19 m² less room coverage
    Maximum room area
    15 m²
    â–¼ Worse than 88% of models
    Market range: <15 m² – >90 m²
    This dehumidifier covers smaller rooms than the average dehumidifier (15 m² vs 34 m²).
    15 m² vs 34 m²
  • 1.9 L smaller water tank
    Water tank capacity
    0.6 L
    â–¼ Worse than 94% of models
    Market range: <1 L – >5.8 L
    This dehumidifier has a smaller water tank than the average dehumidifier (0.6 L vs 2.5 L).
    0.6 L vs 2.5 L
  • 80 m³/h lower airflow rate
    Maximum airflow rate
    80 m³/h
    â–¼ Worse than 95% of models
    Market range: <95 m³/h – >250 m³/h
    This dehumidifier moves less air through the unit than the average dehumidifier (80 m³/h vs 160 m³/h).
    Airflow rate 80 m³/h
    80 m³/h vs 160 m³/h
  • 1 levels less fan control
    Number of speed levels
    1 levels
    â–¼ Worse than 77% of models
    Market range: <1 levels – >3 levels
    This dehumidifier provides fewer fan speed options than the average dehumidifier (1 levels vs 2 levels).
    1 levels vs 2 levels
  • 42 m³ less room volume
    Maximum room volume
    38 m³
    â–¼ Worse than 84% of models
    Market range: <38 m³ – >225 m³
    This dehumidifier handles smaller room volumes than the average dehumidifier (38 m³ vs 80 m³).
    Derived from room area (15 m² * 2.5m ceiling height)
    38 m³ vs 80 m³
  • 10 °C higher minimum temperature
    Minimum operating temperature
    15 °C
    â–¼ Worse than 89% of models
    Market range: <2 °C – >15 °C
    This dehumidifier requires warmer conditions to operate than the average dehumidifier (15 °C vs 5 °C).
    15 °C vs 5 °C
  • 1 filters fewer filtration stages
    Number of filters
    0 filters
    â–¼ Worse than 89% of models
    Market range: <0 filters – >2 filters
    This dehumidifier incorporates fewer air filtration stages than the average dehumidifier (0 filters vs 1 filters).
    0 filters vs 1 filters
  • 21.2% worse value for money
    PureMate PM405B has a lower value-for-money score than the average dehumidifier (5.18 vs 6.3).
    5.18 vs 6.28
  • 13.2 L/day lower extraction capacity
    Dehumidification capacity
    0.3 L/day
    â–¼ Worse than 91% of models
    Market range: <0.35 L/day – >30 L/day
    This dehumidifier delivers lower moisture extraction than the average dehumidifier (0.3 L/day vs 13.5 L/day).
    0.3 L/day vs 13.5 L/day
  • 19 m² less room coverage
    Maximum room area
    15 m²
    â–¼ Worse than 88% of models
    Market range: <15 m² – >90 m²
    This dehumidifier covers smaller rooms than the average dehumidifier (15 m² vs 34 m²).
    15 m² vs 34 m²
  • 1.9 L smaller water tank
    Water tank capacity
    0.6 L
    â–¼ Worse than 94% of models
    Market range: <1 L – >5.8 L
    This dehumidifier has a smaller water tank than the average dehumidifier (0.6 L vs 2.5 L).
    0.6 L vs 2.5 L
  • 80 m³/h lower airflow rate
    Maximum airflow rate
    80 m³/h
    â–¼ Worse than 95% of models
    Market range: <95 m³/h – >250 m³/h
    This dehumidifier moves less air through the unit than the average dehumidifier (80 m³/h vs 160 m³/h).
    Airflow rate 80 m³/h
    80 m³/h vs 160 m³/h
  • 1 levels less fan control
    Number of speed levels
    1 levels
    â–¼ Worse than 77% of models
    Market range: <1 levels – >3 levels
    This dehumidifier provides fewer fan speed options than the average dehumidifier (1 levels vs 2 levels).
    1 levels vs 2 levels
  • 42 m³ less room volume
    Maximum room volume
    38 m³
    â–¼ Worse than 84% of models
    Market range: <38 m³ – >225 m³
    This dehumidifier handles smaller room volumes than the average dehumidifier (38 m³ vs 80 m³).
    Derived from room area (15 m² * 2.5m ceiling height)
    38 m³ vs 80 m³
  • 10 °C higher minimum temperature
    Minimum operating temperature
    15 °C
    â–¼ Worse than 89% of models
    Market range: <2 °C – >15 °C
    This dehumidifier requires warmer conditions to operate than the average dehumidifier (15 °C vs 5 °C).
    15 °C vs 5 °C
  • 1 filters fewer filtration stages
    Number of filters
    0 filters
    â–¼ Worse than 89% of models
    Market range: <0 filters – >2 filters
    This dehumidifier incorporates fewer air filtration stages than the average dehumidifier (0 filters vs 1 filters).
    0 filters vs 1 filters

Graphic comparison of PureMate PM405B and other Dehumidifiers

No results found

Third-party reviews

Based on 1,762 buyer reviews from online shops.
Reviews last updated: October 2026 · How we calculate this
Read buyer reviews on Amazon →

What customers like about PureMate PM405B?

  • Compact and lightweight design makes it highly portable and easy to place on desks, shelves, or inside wardrobes.
  • Effectively reduces dampness, condensation, and musty odors in small spaces like small bedrooms, bathrooms, and walk-in closets.
  • Features an automatic shut-off safety mechanism that prevents leaks or water overflow when the 600ml tank reaches full capacity.
  • Offers excellent value for money as an affordable, budget-friendly entry-level dehumidifier option.
  • Consumes a very low amount of energy due to its eco-friendly, compressor-free thermoelectric cooling design.

What customers dislike about PureMate PM405B?

  • Extremely limited extraction capacity, collecting a maximum of only up to 300ml of water per day.
  • Ineffective for large rooms, open living spaces, or areas suffering from severe, heavy-duty moisture issues.
  • Operates with a noticeable fan hum that some light sleepers find too loud or distracting for occupied bedrooms overnight.
  • Requires long or continuous hours of operation to make a significant impact on local humidity levels.

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