Need a reliable way to handle damp laundry and humid rooms? The compact dehumidifier and air purifier combo called Ariston Deos 21S Dehumidifier and Air Purifier targets laundry drying and allergen reduction with a touchscreen, timer and optional smartphone control. Will it suit a busy household that needs faster indoor drying and clearer air?
⚡ At a Glance
- • Moisture removal: Extraction capacity up to 20 litres per day for rooms up to 52 m²
- • A natural fit for: Homes and flats with a dedicated laundry area or rooms up to about 52 m² needing faster indoor drying
- • Overkill for: Owners of very large damp basements; the 20 L/day extraction and 52 m² recommendation will not control heavy, whole-basement humidity, causing continuous runtime without reaching target levels
20 L/day extraction and a Super Laundry Function speed up cloth drying while a supplied HEPA filter enables a standalone air purification mode. Touchscreen, remote control and a timer allow scheduled operation and optional smartphone regulation.
📋 Technical Details at a Glance
- Recommended coverage: 52 m²
- Extraction capacity: 20 L/day
- Operating modes: Dehumidification; Air purification (exclusive when HEPA installed)
- Filter type: HEPA filter included
- Laundry function: Super Laundry Function with automatic fan-speed adjustment
Unlocking faster laundry drying with Super Laundry Function
Super Laundry Function adjusts fan speed automatically by sensing humidity and temperature, accelerating moisture removal from fabrics and preventing excess damp build-up in the room. Direct control via the touchscreen or remote schedules cycles to match washing loads and daily routines.
Practical benefit: wet towels and small loads reach a dry state faster than passive airing, reducing odour and mildew risk. If you habitually dry very large loads or try to dehumidify multiple adjoining rooms at once, the 20 L/day capacity will extend runtimes and may not hit the chosen humidity target quickly.
HEPA Filter: The Professional's Verdict
Air Purification Mode uses the supplied HEPA filter to capture dust, bacteria and allergens, operating solely as a purifier while the filter is inserted. Users switch modes to prioritise particle removal over moisture extraction when indoor air quality is the main concern.
Cleaner air results from targeted filtration during dedicated purification sessions, which benefits allergy-prone occupants. Trade-off: purification disables simultaneous dehumidification while the HEPA element is installed, so scheduling is required when both drying and filtration are needed.
✨ The Standout Features of the Ariston Deos 21S Dehumidifier and Air Purifier
- Super Laundry Function – Accelerates cloth drying by auto-adjusting fan speed
- HEPA filtration mode – Removes dust, bacteria and allergens during dedicated runs
- Touchscreen plus timer – Schedule operation to match laundry cycles and daily routines
- Optional smartphone control – Adjust settings remotely for convenience when away
❓ Frequently Asked Questions
Q: How does smartphone control work?
A: Smartphone control operates via the optional app, allowing humidity targets and schedules to be set from elsewhere; Pro-tip: confirm app compatibility with your phone before relying on remote scheduling.
Q: How heavy is the unit and is it easy to move?
A: Weight is listed as 35.1196383366 pounds, so place it on a stable surface for operation and consider a trolley or low table for repositioning; Pro-tip: moving with two people reduces the risk of dropping while avoiding strain.
Q: Can the air purification and drying run at the same time?
A: Air Purification Mode runs exclusively when the HEPA filter is inserted, which prevents simultaneous moisture extraction and filtration; Pro-tip: schedule separate cycles for drying and purifying to achieve both low humidity and cleaner air without compromise.
🏆 Our Verdict
The Deos 21S suits households that want quicker indoor drying for laundry and an occasional purification option for allergy-prone rooms. The touchscreen and timer make it feel purpose-built for routine use, with controls that read as straightforward and modern rather than fiddly. Given the combined drying and filtration roles, the unit represents sensible long-term value for homes that will run it regularly and schedule separate drying and purification cycles.
