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An Ideal Home reviewer tested the Princess Smart 20L dehumidifier for just over a month in a period home, including a bedroom prone to condensation. The report describes the app as straightforward and says the reviewer compared the unit’s humidity readings with an independent monitor, but the supplied material gives no numerical results showing how much humidity fell.
Ideal Home has published a month-long test of the Princess Smart 20L dehumidifier, using it in a period home that includes a bedroom prone to condensation. The reviewer found the app simple to connect and use, but the source material provided does not include numerical humidity readings or a measured result showing how much the machine reduced damp.
The reviewer used the 20-litre-per-day compressor model in several rooms, including the problem bedroom, and also tried it in drier parts of the house. Testing covered humidity monitoring, app scheduling, manual controls, noise on both fan settings, and routine tasks such as emptying the tank and removing the filter. An independent humidity monitor was used to compare readings with the machine’s display and app.
The unit has a 3.7-litre water tank, an automatic humidity sensor and an option for continuous drainage using the included hose. Its listed maximum recommended room size is 20 square metres; the listed noise range is 39 to 44 decibels and power is 325 watts. The review says the machine can be controlled through the Princess app, with options to set humidity levels, fan speeds, schedules and timers. It is also compatible with Google Assistant.
According to the report, setup took a few minutes: the filter and castor wheels were already fitted, and the reviewer connected the machine to Wi-Fi through the app. The instructions recommend leaving about 20 centimetres of clearance around the unit and keeping it out of direct sunlight. The supplied report does not include the full test conclusions or specific before-and-after humidity measurements, so the size of any improvement cannot be quantified from this material.
What the Test Says About Daily Use
A dehumidifier’s listed extraction capacity does not by itself show how it will perform in a particular bedroom. Results depend on the room and its conditions, while practical details such as noise, tank capacity and controls affect day-to-day operation. The review describes more than a month of use in a condensation-prone older home.
The reviewer’s use of a separate humidity monitor provides a comparison with the machine’s display and app. However, without the readings or a clearly stated comparison, readers cannot determine from the supplied material whether the Princess model made a substantial difference, how quickly it did so, or how closely its readings matched the monitor.
The app’s remote controls and scheduling allow users to manage operation without repeatedly approaching the unit. These features do not establish that the machine prevents mould or resolves the cause of damp. The report describes testing in a damp bedroom; it does not establish that a dehumidifier can fix building defects or replace appropriate ventilation and repairs.
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How the Bedroom Test Was Run
The test took place in a period home with thick walls and limited ventilation during the colder season, according to the Ideal Home report. The bedroom was described as prone to condensation and occasional mould. The reviewer also moved the dehumidifier to drier rooms to assess its operation in different household conditions.
The Princess Smart 20L is listed at an RRP of £230 and is sold at B&Q, according to the source. It measures 57.2 centimetres high, 34.4 centimetres wide and 25 centimetres deep, and weighs 12 kilograms. The product specification lists a two-year warranty, Wi-Fi connectivity and a continuous-drain option; it does not list a laundry mode, child lock or HEPA filter.
The review’s method included comparing humidity figures from the unit with an independent monitor, checking app and panel controls, and measuring sound with a decibel meter on both fan settings. The supplied article extract describes these checks, but does not provide their full numerical outcomes.
“Connecting it is as simple as downloading the Princess app, connecting to Wi-Fi, creating an account and adding the device, all of which took just a few minutes.”
— Ideal Home reviewer
20L smart compressor dehumidifier with app control
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Humidity Results Still Need Numbers
The supplied source does not give the independent monitor’s readings, the humidity at the start or end of the test, or the time taken to reach any target level. It therefore does not support a precise claim about how much moisture the unit removed in the bedroom or whether its sensor matched the independent monitor.
The extract also does not provide the reviewer’s measured noise results, how often the 3.7-litre tank needed emptying, or a complete verdict on performance across the different rooms. The headline’s reference to surprising results is not accompanied here by a specific measurement or explanation of what surprised the tester. These details remain unconfirmed in the material available.
There is also no evidence in the supplied report that the appliance eliminated mould or addressed the underlying source of damp. The review describes a test in one home over a little more than a month; it is not a controlled comparison that establishes performance in every property or room.
digital hygrometer indoor humidity monitor
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Full Test Findings Would Clarify Impact
The review’s complete results would provide additional information, including before-and-after humidity readings, independent-monitor comparisons, measured sound levels and the reviewer’s final assessment of the machine in the damp bedroom. Those figures would distinguish the product’s stated capacity from its performance in this particular home.
People considering the model can compare its listed 20-square-metre room recommendation, tank size, drainage option and app features with their own room and preferences. The source does not provide a follow-up test or a date for further results. Longer-term claims about reducing condensation or preventing mould are not established by the supplied material.
dehumidifier continuous drainage hose
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Key Questions
How long was the Princess Smart 20L tested?
The Ideal Home reviewer tested it for just over a month in a period home, using it in a damp bedroom and other rooms.
Did the review show how much humidity the dehumidifier removed?
The supplied report says the reviewer compared the appliance’s readings with an independent humidity monitor, but it does not include before-and-after figures or a quantified reduction.
What smart controls does the model have?
The report says the Princess app can display room humidity and control power, fan speed, humidity settings, schedules and timers. The model is also listed as compatible with Google Assistant.
What is the tank capacity and can it drain continuously?
The listed water tank holds 3.7 litres. The product also has a continuous-drain option, with a hose included, according to the review’s specifications.
Does the test prove the unit prevents mould?
No. The report describes testing in a bedroom prone to condensation and occasional mould, but the supplied material does not show that the appliance eliminated mould or corrected the cause of damp.
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