# Best 20 litre dehumidifiers for family homes Source: https://dampanddry.co.uk/best/best-20-litre-dehumidifiers Publisher: Damp and Dry. Picks are based on what the Amazon listings state, not on hands-on testing. Method: https://dampanddry.co.uk/how-we-pick A 20 litre dehumidifier is the size most three and four bed houses end up with. It has enough capacity to pull a damp house back into range in winter and still run quietly once it gets there. The figures on these machines look similar at first glance, so the details matter. The tank size decides how often you empty it, the quoted room size tells you how far the maker expects it to reach, and the stated noise level tells you whether it can sit in a lived-in room. This guide compares six machines rated at 20 or 21 litres a day on exactly those facts, taken from each listing. Where a maker leaves a figure out we say so, because a missing noise level is worth knowing before you buy. ## Products ### 1. Meaco MeacoDry Arete® Two 20L Dehumidifier & HEPA H13 Air Purifier, Meaco WiFi App, Intelligent Humidity Mode, Laundry Mode, Power-Saving Mode, Quiet Mode, Lowers Moisture Extraction: 20 L/day; Tank: Not stated; Room size: 42 m²; Stated noise: 38 dB; Power: 350 W Meaco's 20 litre compressor model with an H13 HEPA filter, Wi-Fi app and laundry mode. The only machine here with a stated noise figure. In its favour: - The maker states 38 dB and calls it its quietest and most energy-saving model yet. - Laundry mode runs for six hours and then switches off, according to the listing. - Intelligent humidity mode stops at your target level and restarts when humidity rises. Good to know: - The listing does not give a clear tank capacity, so emptying frequency is unclear. - At 15 kg it is heavy to lift up and down stairs. ### 2. De'Longhi Tasciugo AriaDry Multi - Portable Home Dehumidifier, Air Purifier, Moisture Absorber 21L/Day, Clothes Dryer, Anti-Mold, Wi-Fi and Alexa Compatible, LCD Display, Gray (DDSX220WFA) Extraction: 21 L/day; Tank: 5 L; Room size: 90 m²; Stated noise: Not stated; Power: 490 W De'Longhi's Tasciugo AriaDry Multi with a 5 litre tank, Wi-Fi and Alexa control, and four filters including HEPA E12. In its favour: - The listing quotes a floor area of up to 90 m², the widest reach among these picks. - A 5 litre tank means fewer trips to the sink than the 3 litre tanks here. - Alexa voice control and a RealFeel comfort mode come as standard, per the listing. Good to know: - No noise level is stated, so check it suits a bedroom or lounge before you buy. - 490 W is a higher power rating than the Meaco for similar extraction. ### 3. Ariston Deos 21S NET Dehumidifier 21L/Day - Ideal for Damp Home Extraction: 20 to 21 L/day; Tank: Not stated; Room size: 52 m²; Stated noise: Not stated; Power: Not stated A UK specification 20 litre class unit with Super Laundry mode, optional app control and a supplied HEPA filter. In its favour: - Quoted for areas up to 52 m², the largest recommended area among these 20 litre models. - The Ariston Clima app sets humidity and schedules running times from your phone. - Super Laundry mode sets the fan speed from the humidity and temperature it senses. Good to know: - Noise, wattage and tank size are not stated in the listing. - The title says 21 L/day but the bullets say 20 litres a day, so expect the lower figure. ### 4. Dimplex EverDri Dehumidifier with Humidistat & Timer, Auto-shut off, 20L Extraction: 20 L/day; Tank: 3 L; Room size: 47 m²; Stated noise: Not stated; Power: Not stated A straightforward 20 litre dehumidifier with an electronic humidistat, a timer and a coloured light that shows when the room reaches the set level. In its favour: - The comfort light turns green at the set humidity, red when too dry and blue when too humid. - A washable pre-filter plus a separate active carbon filter for odours are included. - The 3 litre tank is clear, so the water level is visible, and it shuts off when full. Good to know: - The listing does not state noise or a reliable power figure. - No continuous drainage option is mentioned in the listing. ### 5. De'Longhi Tasciugo AriaDry Multi - Portable Home Dehumidifier, Moisture Absorber 20L/Day, Clothes Dryer, Anti-Mold, Low Noise Level, Timer, White (DDSX220) Extraction: 20 L/day; Tank: 5 L; Room size: Not stated; Stated noise: Not stated; Power: 430 W The non Wi-Fi version of De'Longhi's AriaDry Multi, with a 5 litre tank, three fan speeds, a timer and a clothes drying function. In its favour: - A 5 litre tank is one of the largest here, so it suits a damp house that fills tanks quickly. - Three fan speeds and a timer are listed, with a clothes drying function in the title. - At 430 W it draws less than the Wi-Fi DDSX220WFA version. Good to know: - The listing gives very little detail, with no room size or noise figure. - There is no app or Wi-Fi control on this version. ### 6. WHIRLPOOL DE20W5252 DEHUMIDIFIER 20LTR/Day, Tank 6.5L Extraction: 20 L/day; Tank: 6.5 L; Room size: 30 m²; Stated noise: Not stated; Power: Not stated A 20 litre Whirlpool dehumidifier with a 6.5 litre tank and touch screen controls, quoted for large rooms up to 30 m². In its favour: - The 6.5 litre tank is the largest in this group, so it needs emptying less often. - Whirlpool states it can cut laundry drying time by 50 percent. - Touch screen controls for picking programmes, according to the listing. Good to know: - The quoted room size of 30 m² is the smallest here despite the 20 litre rating. - Noise level and a believable power figure are not given in the listing. As an Amazon Associate we earn from qualifying purchases.