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PureMate PM420 Review | 48 Data compared

Avg. price:~£190Dehumidification capacity:20 L/dayMaximum room area:30 m²Maximum noise level:45 dB

PureMate PM420 Review: Compare 48 specifications and user reviews to see how this product ranks in the Dehumidifiers category and whether it is worth buying.

6.7

Overall score

Score
6.7/ 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–² Better than 67% of models
Score components

90%

6.5

Technical Score

10%

8.6

User score

â–²Better than 67% of dehumidifiers
6.5

Technical Score

Technical score
6.5/ 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–² Better than 66% of models
Score components

80%

6.5

Performance

15%

7.8

Features

5%

2.8

Design

â–²Better than 66% of dehumidifiers
8.6

User score

User score
8.6/ 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 74% of models
Score components

70%

8.8

User ratings

30%

8.0

Number of reviews

Based on 702 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 74% 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 PM420 is a 420W compressor dehumidifier designed for areas up to 30m² (or up to 5 bedrooms), capable of extracting up to 20L of moisture per day. It features a large 6.5L removable water tank with auto-shutoff, a 24-hour timer, dual fan speeds, and an automatic humidistat with a 3-color indicator light for real-time monitoring. Key pros include its multi-mode versatile controls (Normal, Continuous, High-power, Dryer modes for laundry), active carbon filtration for reducing odors, a direct drain option for continuous operation, and built-in castor wheels for easy mobility. However, it has a notable net weight of 14.5kg and its max noise level can reach up to 45dB, which might feel loud outside of its designated sleep mode.

Technical Specifications of dehumidifier PureMate PM420

Technical Score
Technical score
6.5/ 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–² Better than 66% of models
Score components:

80%

6.5

Performance

15%

7.8

Features

5%

2.8

Design

6.5
PureMate PM420 has a technical score of 6.5 points, higher than 65.5% of dehumidifiers.
User score
User score
8.6/ 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 74% of models
Score components

70%

8.8

User ratings

30%

8.0

Number of reviews

Based on 702 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.
8.6
PureMate PM420 has a user score of 8.58 points, higher than 73.5% of dehumidifiers.
Popularity
Popularity
8.0/ 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 68% of models
Popularity:
PureMate PM420 has a popularity score of 8 points, higher than 67.5% of dehumidifiers.
8.0
PureMate PM420 has a popularity score of 8 points, higher than 67.5% of dehumidifiers.
Ratio quality/price
Value for money
6.7/ 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–² Better than 69% of models
Score components:

60%

6.7

Overall score

40%

6.5

Price

6.7
PureMate PM420 has a value-for-money score of 6.7 points, higher than 69% of dehumidifiers.
Technology
condensing
Power
420 W
Power
420 W
â–¼ Worse than 73% of models
Market range: <23 W – >570 W
This dehumidifier draws 420 W, which is higher than the power draw of 73.5% of dehumidifiers and equal to that of 7.1% of dehumidifiers.
Dehumidification capacity
20 L/day
Dehumidification capacity
20 L/day
â–² Better than 61% of models
Market range: <0.35 L/day – >30 L/day
This dehumidifier removes up to 20 L/day, which is higher than the daily extraction of 61% of dehumidifiers and equal to that of 19% of dehumidifiers.
Maximum airflow rate
?
Maximum room area
30 m²
Maximum room area
30 m²
â–¼ Worse than 54% of models
Market range: <15 m² – >90 m²
This dehumidifier is rated for rooms up to 30 m², which is smaller than that of 54.2% of dehumidifiers and equal to that of 7% of dehumidifiers.
Show more
Fan
yes
Drying mode
yes
Anti-freeze
yes
Automatic shut-off when full
yes
Timer
yes
Show more
Color
white
Material
plastic
Display
yes
Display position
top
Control type
touch
Show more

PureMate PM420 vs the average dehumidifier

246810TotalPerformanceFeaturesDesign
  • 4 L larger water tank
    Water tank capacity
    6.5 L
    ★ Better than 93% of models
    Market range: <1 L – >5.8 L
    This dehumidifier has a larger water tank than the average dehumidifier (6.5 L vs 2.5 L).
    6.5 L vs 2.5 L
  • 6.5 L/day higher extraction capacity
    Dehumidification capacity
    20 L/day
    â–² Better than 61% of models
    Market range: <0.35 L/day – >30 L/day
    This dehumidifier delivers higher moisture extraction than the average dehumidifier (20 L/day vs 13.5 L/day).
    20 L/day vs 13.5 L/day
  • 5.3% higher user score
    User score
    8.6/ 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 PM420
    the average dehumidifier
    ★ Better than 93% of models
    PureMate PM420 has a higher user score than the average dehumidifier (8.58 vs 8.145).
    8.58 vs 8.15
  • 12.6% more popular
    PureMate PM420 has a higher popularity score than the average dehumidifier (7.98 vs 7.1).
    7.98 vs 7.08
  • 6% better value for money
    PureMate PM420 has a higher value-for-money score than the average dehumidifier (6.66 vs 6.3).
    6.66 vs 6.28
  • 5.3% higher user score
    User score
    8.6/ 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 PM420
    the average dehumidifier
    ★ Better than 93% of models
    PureMate PM420 has a higher user score than the average dehumidifier (8.58 vs 8.145).
    8.58 vs 8.15
  • 12.6% more popular
    PureMate PM420 has a higher popularity score than the average dehumidifier (7.98 vs 7.1).
    7.98 vs 7.08
  • 6% better value for money
    PureMate PM420 has a higher value-for-money score than the average dehumidifier (6.66 vs 6.3).
    6.66 vs 6.28
  • 4 L larger water tank
    Water tank capacity
    6.5 L
    ★ Better than 93% of models
    Market range: <1 L – >5.8 L
    This dehumidifier has a larger water tank than the average dehumidifier (6.5 L vs 2.5 L).
    6.5 L vs 2.5 L
  • 6.5 L/day higher extraction capacity
    Dehumidification capacity
    20 L/day
    â–² Better than 61% of models
    Market range: <0.35 L/day – >30 L/day
    This dehumidifier delivers higher moisture extraction than the average dehumidifier (20 L/day vs 13.5 L/day).
    20 L/day vs 13.5 L/day
  • 50 m³ less room volume
    Maximum room volume
    30 m³
    â–¼ Worse than 93% of models
    Market range: <38 m³ – >225 m³
    This dehumidifier handles smaller room volumes than the average dehumidifier (30 m³ vs 80 m³).
    30 m³ vs 80 m³
  • 150 W higher power draw
    Power
    420 W
    â–¼ Worse than 73% of models
    Market range: <23 W – >570 W
    This dehumidifier draws more power than the average dehumidifier (420 W vs 270 W).
    420 W vs 270 W
  • 2 dB higher maximum noise
    Maximum noise level
    45 dB
    â–¼ Worse than 55% of models
    Market range: <35 dB – >50 dB
    This dehumidifier is louder at maximum fan speed than the average dehumidifier (45 dB vs 43 dB).
    45 dB vs 43 dB
  • 4 m² less room coverage
    Maximum room area
    30 m²
    â–¼ Worse than 54% of models
    Market range: <15 m² – >90 m²
    This dehumidifier covers smaller rooms than the average dehumidifier (30 m² vs 34 m²).
    30 m² vs 34 m²
  • 31.8% heavier
    Weight
    14.5 kg
    â–¼ Worse than 71% of models
    Market range: <1.2 kg – >16 kg
    This dehumidifier is heavier than the average dehumidifier (14.5 kg vs 11 kg). The average dehumidifier weighs 11 kg.
    14.5 kg vs 11 kg
  • 7 cm taller body
    Height
    57 cm
    â–¼ Worse than 81% of models
    Market range: <24 cm – >60 cm
    This dehumidifier stands taller than the average dehumidifier (57 cm vs 50 cm).
    57 cm vs 50 cm
  • 2 cm wider body
    Width
    34 cm
    â–¼ Worse than 58% of models
    Market range: <15.5 cm – >38.5 cm
    This dehumidifier has a wider front profile than the average dehumidifier (34 cm vs 32 cm).
    34 cm vs 32 cm
  • 26.7% more expensive
    PureMate PM420 is more expensive than the average dehumidifier (£190 vs £150).
    £190 vs £150
  • 26.7% more expensive
    PureMate PM420 is more expensive than the average dehumidifier (£190 vs £150).
    £190 vs £150
  • 50 m³ less room volume
    Maximum room volume
    30 m³
    â–¼ Worse than 93% of models
    Market range: <38 m³ – >225 m³
    This dehumidifier handles smaller room volumes than the average dehumidifier (30 m³ vs 80 m³).
    30 m³ vs 80 m³
  • 150 W higher power draw
    Power
    420 W
    â–¼ Worse than 73% of models
    Market range: <23 W – >570 W
    This dehumidifier draws more power than the average dehumidifier (420 W vs 270 W).
    420 W vs 270 W
  • 2 dB higher maximum noise
    Maximum noise level
    45 dB
    â–¼ Worse than 55% of models
    Market range: <35 dB – >50 dB
    This dehumidifier is louder at maximum fan speed than the average dehumidifier (45 dB vs 43 dB).
    45 dB vs 43 dB
  • 4 m² less room coverage
    Maximum room area
    30 m²
    â–¼ Worse than 54% of models
    Market range: <15 m² – >90 m²
    This dehumidifier covers smaller rooms than the average dehumidifier (30 m² vs 34 m²).
    30 m² vs 34 m²
  • 31.8% heavier
    Weight
    14.5 kg
    â–¼ Worse than 71% of models
    Market range: <1.2 kg – >16 kg
    This dehumidifier is heavier than the average dehumidifier (14.5 kg vs 11 kg). The average dehumidifier weighs 11 kg.
    14.5 kg vs 11 kg
  • 7 cm taller body
    Height
    57 cm
    â–¼ Worse than 81% of models
    Market range: <24 cm – >60 cm
    This dehumidifier stands taller than the average dehumidifier (57 cm vs 50 cm).
    57 cm vs 50 cm
  • 2 cm wider body
    Width
    34 cm
    â–¼ Worse than 58% of models
    Market range: <15.5 cm – >38.5 cm
    This dehumidifier has a wider front profile than the average dehumidifier (34 cm vs 32 cm).
    34 cm vs 32 cm
  • 1 cm deeper body
    Depth
    24 cm
    â–¼ Worse than 56% of models
    Market range: <13 cm – >29 cm
    This dehumidifier protrudes further from walls than the average dehumidifier (24 cm vs 23 cm).
    24 cm vs 23 cm

Graphic comparison of PureMate PM420 and other Dehumidifiers

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Third-party reviews

Based on 702 buyer reviews from online shops.
Reviews last updated: October 2026 · How we calculate this
Read buyer reviews on Amazon →

What customers like about PureMate PM420?

  • Highly effective at removing moisture and resolving condensation on walls or windows.
  • Excellent performance for drying laundry quickly indoors.
  • Large 6.5-liter water container capacity that is praised for being better than older models.
  • Easy to empty the water tank and straightforward to operate.
  • Great value for the price and solid build quality.
  • Equipped with smooth-rolling caster wheels making it easy to maneuver around rooms.

What customers dislike about PureMate PM420?

  • Operates with notable noise, particularly from the compressor cycling, clicking, or knocking.
  • Too loud for standard bedroom use unless the user is a heavy sleeper.
  • Lacks a top carrying handle which makes lifting the 14.5kg unit awkward despite the wheels.
  • Internal parts (like factory plastic left on the rear fin stack) can sometimes reduce condensation efficiency if not checked.
  • Occasional quality control issues leading to faulty units out of the box that require replacement.

Compare PureMate PM420 with other Dehumidifiers

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