1 / 7KNKA PD22-16L-Quiet 16 L/day Dehumidifier
The KNKA PD22-16L-Quiet is a home dehumidifier listed with a 16-litre daily extraction capacity, a 3.5-litre tank and sleep mode. Its stated quiet-running range and continuous-drain option suit buyers considering bedroom use or longer unattended operation, although the listed extraction figure is given under warm, humid test conditions.
At a glance
- The listing claims up to 16 litres of moisture removal per day when tested at 35°C and 90% relative humidity.
- Sleep mode is claimed to run at 35–40 dB, with indicator lights switching off automatically.
- A 3.5-litre tank has a water-level window, and the listing says a 1 m hose is included for continuous drainage.
- Auto mode is described as stopping the compressor at the target humidity while the fan continues at its lowest speed.
- Automatic defrost, a removable filter, child lock and full-tank alarm are listed.
Reference price: £189.99
Price checked: 12 Nov 2026
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Pros and cons
Pros
- Continuous drainage is a useful option for spaces where regular tank emptying is inconvenient.
- The 3.5-litre tank and visible water-level window make tank operation easier to monitor.
- The claimed sleep mode dims the unit's visual indicators and has a lower stated noise range than the listing's comparison figure.
Cons
- The tank still needs emptying when continuous drainage is not used, so its capacity may require attention during extended operation.
Technical specifications
18 specifications| Brand | KNKA |
|---|---|
| Model | PD22-16L-Quiet |
| Colour | White |
| Dehumidification capacity | 16 Liters per Day |
|---|---|
| Capacity test conditions | 35°C, 90% RH |
| Maximum power | 260 watts |
| Noise level claimed | 35–40 dB |
| Noise measurement conditions | at a distance of 1 metre from the device |
| Tank volume | 3.5 Litres |
|---|---|
| Drainage hose length | 1 m |
| Dimensions listed | 33.5D x 25.5W x 52.6H centimetres |
|---|---|
| Weight listed | 10 Kilograms |
| First-use upright rest | 24 hours |
| Humidity indicator thresholds | blue for dry air (<50% RH), green for comfortable (50%–70% RH) and red for humid (>70% RH) |
|---|---|
| Warranty listed | 5 year. |
| Technical support claim | 10 Years of Expert Technical Support |
| Certification claim | TÜV certified |
| Country of origin | China |
What to know before buying
Listing details to confirm
The listing gives the 16-litre daily extraction figure specifically at 35°C and 90% RH, so it should not be treated as an unconditional rate for cooler or drier rooms. It also calls the unit ultra-quiet at 35–40 dB in one claim but compares traditional dehumidifiers at 50–56 dB without clarifying whether that latter range describes this model. The product detail lists one included component, while the feature text separately claims a 1 m drainage hose is included. Confirm the selected listing's package contents and applicable noise claim before buying. Keep the appliance upright and leave it standing for 24 hours before first use, as instructed.
What’s in the box
- 1 listed componentIncluded
- 1 m drainage hoseCheck selected pack
Check which accessories are included in your selected pack before buying.
Who is it for?
A good fit for
- Buyers seeking a compressor dehumidifier with a claimed 3.5-litre tank and an option for continuous drainage.
- Bedroom users who want a sleep mode with a stated 35–40 dB operating range and lights that switch off.
- Homes where humidity monitoring, automatic defrost and a full-tank alarm are useful operating features.
Less suited to
- Buyers who need a guaranteed 16-litre daily extraction rate in cool or low-humidity conditions.
- Anyone who needs confirmed package contents without checking whether the claimed drainage hose is included.

Customer reviews on Amazon
- 5 stars
76% 76% - 4 stars
13% 13% - 3 stars
5% 5% - 2 stars
1% 1% - 1 star
5% 5%
Aggregate ratings are predominantly five-star, with a smaller spread across lower star categories. This suggests generally favourable overall ratings but also some less-satisfied experiences. With no customer-comment evidence supplied, the ratings do not show what buyers liked or disliked or whether their results match the stated capacity and noise claims.
Frequently asked questions
What extraction capacity does the listing claim?
It claims up to 16 litres per day, with the stated test conditions of 35°C and 90% relative humidity. Actual extraction may differ under other room conditions.
Can it drain continuously?
The feature text claims that a 1 m drainage hose is included for continuous operation. The product detail's included-components entry only says one component, so confirm the selected listing's package contents.
What does sleep mode do?
The listing says sleep mode switches off the indicator lights and claims operation at 35–40 dB, measured one metre from the unit under laboratory conditions.
What should I do before first use?
The listing instructs users to keep the unit upright and leave it standing upright for 24 hours before first use.

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