dehumidifier size litres

What dehumidifier capacity do you actually need?

Estimate litres/day from volume, how damp the space feels, and indoor laundry. Not a laboratory rating.

You want an indicative dehumidifier capacity, not a model to buy.

  1. Enter floor area and ceiling height of the zone you will treat (not the whole house if doors stay shut).
  2. Say whether you dry laundry indoors and whether you suspect rising damp.
  3. If the diagnosis points to a wet wall, the tool will tell you to inspect before buying.

Indicative capacity

22 L/giorno

Indicative estimate: about 22 litres/day on the nameplate. Makers often rate at 30 °C and 80 % RH, rare in a winter living room. Not a lab sheet and not a model recommendation.

Manufacturer litres/day are often rated at 30 °C and 80% RH — rare in a winter living room.

Useful next step

Compare with running cost and the diagnosis: indoor vapour is a dehumidifier job; rising damp is not.

What may help (after diagnosis)

Some links go to Amazon.it and are affiliate links: we may earn a commission, at no extra cost. They are category examples, not lab reviews. Amazon.com is not connected on the English edition.

10–25 €

TempPro / ThermoPro TP50

Example desktop hygrometer for diagnosis. Without a relative-humidity number every tip is guesswork. Not a lab review.

When: Always, as the first diagnostic step.

Not when: It does not replace a moisture meter or a rising-damp survey.

View on Amazon.it

Amazon.it affiliate link (tag qordac21-21): we may earn a commission, at no extra cost to you. A category example, not a lab review. Amazon.com is not used.

180–320 €

COMFEE’ 16L Wi‑Fi

Example compressor dehumidifier. Useful if indoor air sits above ~60–65% and the cause is indoor vapour. Not a lab review.

When: Measured high RH, window condensation, indoor drying, windowless bath.

Not when: Rising damp, leaks, stains that start at the skirting and climb.

View on Amazon.it

Amazon.it affiliate link (tag qordac21-21): we may earn a commission, at no extra cost to you. A category example, not a lab review. Amazon.com is not used.

12–35 €

Ariasana Aero 360° Kit

Salt moisture absorber, no electricity. Not a compressor dehumidifier: useful in wardrobes and small bathrooms, not enough if the whole home is damp.

When: Wardrobe, hall, small bathroom — after you know it is not a wet wall.

Not when: Not a substitute for an extractor or dehumidifier if whole-home RH stays high.

View on Amazon.it

Amazon.it affiliate link (tag qordac21-21): we may earn a commission, at no extra cost to you. A category example, not a lab review. Amazon.com is not used.

8–18 €

TempPro / ThermoPro TP49

Mini hygrometer, same job as the category: room temperature and humidity. Category example, not a lab test.

When: Small spaces, or when you want to move it from room to room.

Not when: It does not measure moisture in the wall.

View on Amazon.it

Amazon.it affiliate link (tag qordac21-21): we may earn a commission, at no extra cost to you. A category example, not a lab review. Amazon.com is not used.

15–30 €

ThermoPro TP49 (2-pack)

Two mini hygrometers to compare rooms (bath vs bedroom). Zone comparison, not a survey.

When: You want to see whether the problem is in one room only.

Not when: It does not replace a one-week log with one reliable instrument.

View on Amazon.it

Amazon.it affiliate link (tag qordac21-21): we may earn a commission, at no extra cost to you. A category example, not a lab review. Amazon.com is not used.

140–250 €

COMFEE’ 12L

More compact compressor dehumidifier. Same category logic: damp air, not a wall wet from below.

When: Small-to-medium rooms, measured high RH, after diagnosis.

Not when: It does not cure rising damp or leaks.

View on Amazon.it

Amazon.it affiliate link (tag qordac21-21): we may earn a commission, at no extra cost to you. A category example, not a lab review. Amazon.com is not used.

8–15 €

Ariasana Aero 360° unscented tabs 2×450 g

Refills for the salt kit. Without tabs the housing does nothing. Useful in wardrobes, halls and small bathrooms. Not a compressor dehumidifier.

When: You already have (or are about to get) an Aero 360° kit and the space is small.

Not when: Whole-home RH stuck above ~60–65%, a saturated cellar, rising damp. Not a substitute for an extractor or compressor.

View on Amazon.it

Amazon.it affiliate link (tag qordac21-21): we may earn a commission, at no extra cost to you. A category example, not a lab review. Amazon.com is not used.

FAQ

Is this the dehumidifier I should buy?+

No. It is an indicative capacity estimate. Brand and model stay your choice, after diagnosis.

Why do nameplate litres lie in winter?+

The lab test is warm and wet. In a 19 °C living room output drops, especially on small compressor units.

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