Best Air Purifier + Dehumidifier Combos UK 2026
These machines combine dehumidification with H13 HEPA air purification in one appliance, which suits homes dealing with both excess moisture and airborne particles — condensation and damp on one side, dust, pollen and pet dander on the other — without running two separate units in the same room.
One thing to get straight before you compare models: dehumidification capacity in litres per day and purification airflow in m³/h measure different things and should not be confused. We quote both separately for every model below.
Our Top 5
The strongest all-round option here: higher-capacity moisture removal for larger or damper homes, up to 255 m³/h purification airflow through an H13 HEPA filter, plus app control and Alexa/Google voice control.
- Type: Air purifier and dehumidifier in one
- Dehumidification: 20 litres per day (Meaco stated)
- Filtration: H13 HEPA
Particularly attractive value at £199.99. You get H13 HEPA filtration with a dedicated purification mode and full smart control in a smaller, lower-cost package than the 20L.
- Type: Air purifier and dehumidifier in one
- Dehumidification: 12 litres per day (Meaco stated)
- Filtration: H13 HEPA
A compact, low-cost choice for bedrooms and small rooms, with a manufacturer-stated 32 dB minimum noise level and a dedicated purification mode so you can filter air without running the compressor.
- Type: Air purifier and dehumidifier in one
- Dehumidification: 6 litres per day (Meaco stated)
- Filtration: H13 HEPA
A simpler, lower-cost choice for people who do not need the app control and voice assistants of the Arete Two, while still getting H13 HEPA filtration and 12 litres a day of dehumidification.
- Type: 2-in-1 dehumidifier and air purifier
- Dehumidification: 12 litres per day (manufacturer stated)
- Filtration: H13 HEPA
A higher-capacity value alternative to the Arete Two 20L for buyers who want serious moisture removal and HEPA filtration but do not need app or voice control.
- Type: 2-in-1 dehumidifier and air purifier
- Dehumidification: 20 litres per day (manufacturer stated)
- Filtration: H13 HEPA
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Which Meaco should you choose?
- Small room or bedroom
- Arete One 6L
- Best balance of price and smart features
- Arete Two 12L
- Larger home or heavier moisture problem
- Arete Two 20L
- Lower-cost alternatives without smart features
- Arete One 12L / Arete One 20L
In short: the Arete One range covers the essentials — dehumidification plus H13 HEPA filtration with on-unit controls — while the Arete Two range adds app scheduling and Alexa/Google voice control. The litre rating (6L, 12L, 20L) sets how much moisture the machine can remove per day, not how much air it filters.
What to consider before buying
- Purification airflow versus dehumidification capacity: litres per day tells you about moisture, m³/h tells you how much air is filtered. Compare each figure against the job you need doing.
- Room and home size: a 6L unit suits a bedroom or small study, while 20L models are aimed at larger homes or persistent damp across several rooms.
- Noise and bedroom use: check the manufacturer's stated minimum noise level, and whether there is a night mode you can leave running overnight.
- Smart controls: app scheduling and Alexa/Google support come with the Arete Two range and cost more, so decide whether you will actually use them.
Frequently asked questions
Does a 2-in-1 purify as well as a dedicated air purifier?
Not usually. Across the Arete range, purification airflow tops out at up to 255 m³/h, which is below the largest dedicated purifiers in our main Top 10. A combo makes most sense when you genuinely need both moisture removal and HEPA filtration from one appliance.
What does the litres-per-day figure actually mean?
It is the maximum amount of water the dehumidifier can extract in 24 hours under the manufacturer's test conditions. It says nothing about how much air the machine filters, which is measured separately in m³/h.
Can I run one in a bedroom overnight?
The Arete One 6L has a manufacturer-stated 32 dB minimum, and the range includes night modes that dim the display and lower the fan. If filtration alone is enough overnight, a dedicated purification mode avoids running the compressor.