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Ariston Deos 20S Review | 48 Data compared

Avg. price:~£230Dehumidification capacity:20 L/dayMaximum room area:52 m²Maximum noise level:42 dB

Ariston Deos 20S Review: Compare 48 specifications and user reviews to see how this product ranks in the Dehumidifiers category and whether it is worth buying.

6.8

Overall score

Score
6.8/ 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 69% of models
Score components

90%

6.6

Technical Score

10%

8.1

User score

â–²Better than 69% of dehumidifiers
6.6

Technical Score

Technical score
6.6/ 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 70% of models
Score components

80%

6.6

Performance

15%

7.8

Features

5%

3.2

Design

â–²Better than 70% of dehumidifiers
8.1

User score

User score
8.1/ 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–¼ Worse than 51% of models
Score components

70%

8.7

User ratings

30%

6.7

Number of reviews

Based on 213 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–¼Worse than 51% of dehumidifiers
  • ariston-deos-20s
ariston-deos-20s

Best prices

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Best rankings

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Verdict

The Ariston Deos 20S is a compact, portable dehumidifier offering a maximum moisture extraction capacity of 20 liters per 24 hours, making it ideal for residential spaces covering 40 to 52 square meters. Key characteristics include an operating power consumption of 360W–379W, an electronic humidistat, an automated frost-protection system, a 3-liter condensate collection tank, and dedicated laundry and air-purifying odor/dust filtration modes. Its primary advantages are a quiet sound pressure level of just 42 dB(A), an integrated LCD control panel, and convenient built-in omnidirectional wheels and carrying handles for seamless transport. However, its notable drawbacks include a lack of modern smart connectivity like built-in Wi-Fi or smartphone application support, a lack of an advanced HEPA filter, and the requirement of manual tank emptying unless configured separately with a continuous drainage hose.

Technical Specifications of dehumidifier Ariston Deos 20S

Technical Score
Technical score
6.6/ 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 70% of models
Score components:

80%

6.6

Performance

15%

7.8

Features

5%

3.2

Design

6.6
Ariston Deos 20S has a technical score of 6.6 points, higher than 69.5% of dehumidifiers.
User score
User score
8.1/ 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–¼ Worse than 51% of models
Score components

70%

8.7

User ratings

30%

6.7

Number of reviews

Based on 213 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.
8.1
Ariston Deos 20S has a user score of 8.13 points, lower than 51.5% of dehumidifiers.
Popularity
Popularity
6.7/ 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–¼ Worse than 58% of models
Popularity:
Ariston Deos 20S has a popularity score of 6.7 points, lower than 58% of dehumidifiers.
6.7
Ariston Deos 20S has a popularity score of 6.7 points, lower than 58% of dehumidifiers.
Ratio quality/price
Value for money
6.4/ 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 55% of models
Score components:

60%

6.8

Overall score

40%

5.7

Price

6.4
Ariston Deos 20S has a value-for-money score of 6.4 points, higher than 54.5% of dehumidifiers.
Technology
condensing
Power
379 W
Power
379 W
â–¼ Worse than 68% of models
Market range: <23 W – >570 W
This dehumidifier draws 379 W, which is higher than the power draw of 68.4% 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
150 m³/h
Maximum airflow rate
150 m³/h
â–¼ Worse than 51% of models
Market range: <95 m³/h – >250 m³/h
This dehumidifier delivers a maximum airflow of 150 m³/h, which is lower than that of 51.3% of dehumidifiers and equal to that of 5.1% of dehumidifiers.
Maximum room area
52 m²
Maximum room area
52 m²
â–² Better than 79% of models
Market range: <15 m² – >90 m²
This dehumidifier is rated for rooms up to 52 m², which is larger than that of 79.1% of dehumidifiers and equal to that of 1.5% of dehumidifiers.
Show more
Fan
yes
Drying mode
yes
Anti-freeze
no
Automatic shut-off when full
yes
Timer
yes
Show more
Color
white
Material
plastic
Display
yes
Display position
top
Control type
touch
Show more

Ariston Deos 20S vs the average dehumidifier

246810TotalPerformanceFeaturesDesign
  • 18 m² more room coverage
    Maximum room area
    52 m²
    â–² Better than 79% of models
    Market range: <15 m² – >90 m²
    This dehumidifier covers larger rooms than the average dehumidifier (52 m² vs 34 m²).
    52 m² vs 34 m²
  • 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 more room volume
    Maximum room volume
    130 m³
    â–² Better than 81% of models
    Market range: <38 m³ – >225 m³
    This dehumidifier handles larger room volumes than the average dehumidifier (130 m³ vs 80 m³).
    Derived from room area (52 m² * 2.5m ceiling height)
    130 m³ vs 80 m³
  • 3 °C higher maximum temperature
    Maximum operating temperature
    35 °C
    â–² Better than 51% of models
    Market range: <30 °C – >35 °C
    This dehumidifier tolerates hotter ambient conditions than the average dehumidifier (35 °C vs 32 °C).
    35 °C vs 32 °C
  • 0.5 L larger water tank
    Water tank capacity
    3 L
    â–² Better than 52% of models
    Market range: <1 L – >5.8 L
    This dehumidifier has a larger water tank than the average dehumidifier (3 L vs 2.5 L).
    3 L vs 2.5 L
  • 1 dB lower maximum noise
    Maximum noise level
    42 dB
    â–² Better than 57% of models
    Market range: <35 dB – >50 dB
    This dehumidifier is quieter at maximum fan speed than the average dehumidifier (42 dB vs 43 dB).
    42 dB vs 43 dB
  • 2.6% better value for money
    Ariston Deos 20S has a higher value-for-money score than the average dehumidifier (6.44 vs 6.3).
    6.44 vs 6.28
  • 2.6% better value for money
    Ariston Deos 20S has a higher value-for-money score than the average dehumidifier (6.44 vs 6.3).
    6.44 vs 6.28
  • 18 m² more room coverage
    Maximum room area
    52 m²
    â–² Better than 79% of models
    Market range: <15 m² – >90 m²
    This dehumidifier covers larger rooms than the average dehumidifier (52 m² vs 34 m²).
    52 m² vs 34 m²
  • 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 more room volume
    Maximum room volume
    130 m³
    â–² Better than 81% of models
    Market range: <38 m³ – >225 m³
    This dehumidifier handles larger room volumes than the average dehumidifier (130 m³ vs 80 m³).
    Derived from room area (52 m² * 2.5m ceiling height)
    130 m³ vs 80 m³
  • 3 °C higher maximum temperature
    Maximum operating temperature
    35 °C
    â–² Better than 51% of models
    Market range: <30 °C – >35 °C
    This dehumidifier tolerates hotter ambient conditions than the average dehumidifier (35 °C vs 32 °C).
    35 °C vs 32 °C
  • 0.5 L larger water tank
    Water tank capacity
    3 L
    â–² Better than 52% of models
    Market range: <1 L – >5.8 L
    This dehumidifier has a larger water tank than the average dehumidifier (3 L vs 2.5 L).
    3 L vs 2.5 L
  • 1 dB lower maximum noise
    Maximum noise level
    42 dB
    â–² Better than 57% of models
    Market range: <35 dB – >50 dB
    This dehumidifier is quieter at maximum fan speed than the average dehumidifier (42 dB vs 43 dB).
    42 dB vs 43 dB
  • 5 % RH higher minimum humidity setting
    Minimum humidity setting
    35 % RH
    â–¼ Worse than 57% of models
    Market range: <30 % RH – >40 % RH
    This dehumidifier has a higher minimum humidity setting than the average dehumidifier (35 % RH vs 30 % RH). The average dehumidifier has a minimum humidity setting of 30 % RH.
    Minimum target humidity 35%
    35 % RH vs 30 % RH
  • 109 W higher power draw
    Power
    379 W
    â–¼ Worse than 68% of models
    Market range: <23 W – >570 W
    This dehumidifier draws more power than the average dehumidifier (379 W vs 270 W).
    379 W vs 270 W
  • 10 m³/h lower airflow rate
    Maximum airflow rate
    150 m³/h
    â–¼ Worse than 51% of models
    Market range: <95 m³/h – >250 m³/h
    This dehumidifier moves less air through the unit than the average dehumidifier (150 m³/h vs 160 m³/h).
    150 m³/h vs 160 m³/h
  • 3 cm wider body
    Width
    35 cm
    â–¼ Worse than 70% of models
    Market range: <15.5 cm – >38.5 cm
    This dehumidifier has a wider front profile than the average dehumidifier (35 cm vs 32 cm).
    35 cm vs 32 cm
  • 53.3% more expensive
    Ariston Deos 20S is more expensive than the average dehumidifier (£230 vs £150).
    £230 vs £150
  • 1.5 cm deeper body
    Depth
    24.5 cm
    â–¼ Worse than 64% of models
    Market range: <13 cm – >29 cm
    This dehumidifier protrudes further from walls than the average dehumidifier (24.5 cm vs 23 cm).
    24.5 cm vs 23 cm
  • 10.9% heavier
    Weight
    12.2 kg
    â–¼ Worse than 57% of models
    Market range: <1.2 kg – >16 kg
    This dehumidifier is heavier than the average dehumidifier (12.2 kg vs 11 kg). The average dehumidifier weighs 11 kg.
    12.2 kg vs 11 kg
  • 1 cm taller body
    Height
    51 cm
    â–¼ Worse than 57% of models
    Market range: <24 cm – >60 cm
    This dehumidifier stands taller than the average dehumidifier (51 cm vs 50 cm).
    51 cm vs 50 cm
  • 53.3% more expensive
    Ariston Deos 20S is more expensive than the average dehumidifier (£230 vs £150).
    £230 vs £150
  • 5.5% less popular
    Ariston Deos 20S has a lower popularity score than the average dehumidifier (6.71 vs 7.1).
    6.71 vs 7.08
  • 0.2% lower user score
    User score
    8.1/ 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
    Ariston Deos 20S
    the average dehumidifier
    â–² Better than 87% of models
    Ariston Deos 20S has a lower user score than the average dehumidifier (8.13 vs 8.145).
    8.13 vs 8.15
  • 5 % RH higher minimum humidity setting
    Minimum humidity setting
    35 % RH
    â–¼ Worse than 57% of models
    Market range: <30 % RH – >40 % RH
    This dehumidifier has a higher minimum humidity setting than the average dehumidifier (35 % RH vs 30 % RH). The average dehumidifier has a minimum humidity setting of 30 % RH.
    Minimum target humidity 35%
    35 % RH vs 30 % RH
  • 109 W higher power draw
    Power
    379 W
    â–¼ Worse than 68% of models
    Market range: <23 W – >570 W
    This dehumidifier draws more power than the average dehumidifier (379 W vs 270 W).
    379 W vs 270 W
  • 10 m³/h lower airflow rate
    Maximum airflow rate
    150 m³/h
    â–¼ Worse than 51% of models
    Market range: <95 m³/h – >250 m³/h
    This dehumidifier moves less air through the unit than the average dehumidifier (150 m³/h vs 160 m³/h).
    150 m³/h vs 160 m³/h
  • 3 cm wider body
    Width
    35 cm
    â–¼ Worse than 70% of models
    Market range: <15.5 cm – >38.5 cm
    This dehumidifier has a wider front profile than the average dehumidifier (35 cm vs 32 cm).
    35 cm vs 32 cm
  • 1.5 cm deeper body
    Depth
    24.5 cm
    â–¼ Worse than 64% of models
    Market range: <13 cm – >29 cm
    This dehumidifier protrudes further from walls than the average dehumidifier (24.5 cm vs 23 cm).
    24.5 cm vs 23 cm
  • 10.9% heavier
    Weight
    12.2 kg
    â–¼ Worse than 57% of models
    Market range: <1.2 kg – >16 kg
    This dehumidifier is heavier than the average dehumidifier (12.2 kg vs 11 kg). The average dehumidifier weighs 11 kg.
    12.2 kg vs 11 kg
  • 1 cm taller body
    Height
    51 cm
    â–¼ Worse than 57% of models
    Market range: <24 cm – >60 cm
    This dehumidifier stands taller than the average dehumidifier (51 cm vs 50 cm).
    51 cm vs 50 cm

Graphic comparison of Ariston Deos 20S and other Dehumidifiers

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Third-party reviews

Based on 213 buyer reviews from online shops.
Reviews last updated: October 2026 · How we calculate this
Read buyer reviews on Amazon →

What customers like about Ariston Deos 20S?

  • High moisture extraction capacity (up to 20L/24h) which effectively eliminates dampness and improves air quality.
  • Operates at a low noise level, making it suitable for bedrooms and living spaces without causing a disturbance.
  • User-friendly controls and interface for setting up and adjusting functionalities.
  • Compact and elegant design that fits easily into domestic environments.
  • Makes rooms feel more comfortable and mildly warmer by successfully removing heavy humidity.

What customers dislike about Ariston Deos 20S?

  • Requires regular emptying of the water tank when operating in highly humid environments.
  • Power consumption is average for a standard 20L compressor dehumidifier, which can impact electricity bills if run continuously.

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