DeLonghi Tasciugo AriaDry Multi 21L

The DeLonghi Tasciugo AriaDry Multi 21L is designed to control persistent damp and condensation in domestic spaces where black mould is a recurring issue. Its strong extraction rate and accurate humidistat help keep humidity below mould-friendly levels.

It is particularly effective in living rooms, bedrooms, and utility areas, and it offers multiple operating modes for everyday use and laundry drying.

DeLonghi Tasciugo AriaDry Multi 21L

Updated: January 2, 2026
Quick verdict

A reliable mid-to-premium dehumidifier for controlling black mould in everyday living spaces with flexible modes and solid build quality.

Best forBlack mould, condensation, laundry drying
Room sizeUp to 40 m2
NoiseModerate
Filter typeWashable dust
Running costMedium

Gallery

Price and availability

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Best for Black mould prevention, condensation, laundry drying
Moisture removal 21 litres per day
Room size Up to 40 m2
Tank capacity 5 litres
Noise Approx 41 dB(A)
Energy use Approx 330 W
Laundry mode Yes
Drainage option Yes
Operating temperature 5 to 32 C
Auto humidity control Yes
Filter type Washable dust filter
Smart features Digital display, timer, auto restart
Price Premium

Pros and cons

Pros

  • Strong moisture removal for persistent damp
  • Large water tank reduces emptying frequency
  • Flexible operating modes including laundry

Cons

  • Higher energy use than ultra-efficient models
  • Heavier unit than compact dehumidifiers

FAQs

Is this effective against black mould?

Yes. By keeping humidity consistently low, it helps prevent mould from returning after cleaning.

Can it be left running all day?

Yes, it is designed for extended operation with automatic humidity control.

Does it work in colder rooms?

Yes, it operates reliably down to around 5 C.

How we review

We compare dehumidifiers using consistent criteria: room coverage, filtration type, noise for bedrooms, and ongoing filter cost.
We aim to recommend options for different needs and budgets.

  • Coverage suitability for typical rooms
  • Filtration for allergens (HEPA and carbon where relevant)
  • Noise levels for sleeping and working
  • Ongoing filter replacement considerations
  • Ease of use and maintenance