AF 20 - Air purifier Kärcher - Free user manual and instructions

Product Type	Air Purifier
Brand	Kärcher
Model	AF 20
Dimensions (L x W x H)	220 x 220 x 343 mm
Weight	2.7 kg
Supply Voltage	100-240 V, 50-60 Hz
Rated Power	24 W
Standby Consumption	< 0.5 W
Clean Air Delivery Rate (CADR)	220 m³/h
Recommended Room Size	Up to 20 m² (ceiling 3 m)
Filter Efficiency (0.3 µm particles)	99.95 %
Filter Lifespan	Up to 3000 hours
Ventilation Levels	3 (I, II, III)
Noise Level	26 – 52 dB(A)
Air Quality Sensor	PM 2.5 with digital and color display (blue/yellow/red)
Special Features	Auto mode, sleep mode, timer (2/4/6/8 h), button lock
Filter Type	Replaceable fine filter
Filter Change Indicator	Yes, by blinking icon
Cleaning and Maintenance	Wipe with a soft, dry cloth; replace filter regularly
Safety	Automatic shutdown in case of fault, child lock
Warranty	According to country conditions (contact customer service)

Frequently Asked Questions - AF 20 Kärcher

How to install the filter for the first time?

Turn the device over, unlock the filter cover by turning the lock 90° clockwise, remove the cover, take out the packaged filters, unpack them, insert them with the visible tabs facing inward, replace the cover and lock. Place the device on a flat surface with 30 cm of space on each side, plug in the power adapter and turn it on.

When should I replace the filter?

The filter must be replaced after 2500 to 3000 hours of operation at the latest, or earlier if the device becomes noisier, an unpleasant odor develops, or the filter is visibly dirty. A symbol flashes on the screen to remind you.

How to reset the filter life indicator after replacement?

After replacing the filter, turn on the device then press the filter reset button (symbol 1®) for 3 seconds until the indicator turns off.

What is the noise level of the device during operation?

The noise level varies from 26 dB(A) in sleep mode (lowest speed) to 52 dB(A) at maximum speed. Sleep mode is very quiet.

How does auto mode work?

In automatic mode, the purifier automatically adjusts the ventilation level based on the air quality measured by the PM 2.5 sensor. If the air is poor quality, the speed increases; if it is good, it decreases.

Can I use the timer to turn off the device automatically?

Yes, the timer can be set to 2, 4, 6 or 8 hours. Press the timer button repeatedly until the desired duration; once the time is up, the device turns off automatically.

How to clean the device?

Before cleaning, turn off the device and unplug the power adapter. Use a soft, dry cloth to wipe the exterior. Never immerse the device in water and do not use abrasive or corrosive detergents.

What to do if the device does not turn on?

Check the power outlet and fuse. Try another outlet. If the power adapter is defective, contact customer service for replacement. If the screen flashes, check that the filter cover is properly engaged.

What is the power consumption of the device?

The rated power is 24 W in operation and less than 0.5 W in standby. This corresponds to very low consumption.

What room size can this device purify effectively?

The device is designed for a useful area up to 20 m² (with a ceiling height of 3 m and an air exchange rate of 3 times per hour). For a larger room, efficiency may be reduced.

USER MANUAL AF 20 Kärcher

Czech 68

Slovenian 72

Polish 76

Romanian 81

Slovak 85

Croatian 89

Serbian 93

Bulgarian 98

Estonian 103

Latvian 107

Lithuanian 111

Ukrainian 115

Arabic 123

Contents

General notes	8
Safety instructions	8
Intended use	8
Environmental protection	8
Accessories and spare parts	9
Scope of delivery	9
Warranty	9
Description of the device	9
Inserting the filter	9
Operation	9
Transport and storage	10
Care and service	10
Troubleshooting guide	11
EU Declaration of Conformity	12
Technical data	12

General notes

Please read and comply with these original instructions prior to the initial operation of your appliance and store them for subsequent owners.

Safety instructions

Hazard levels

⚠️ DANGER

- Indication of an imminent threat of danger that will lead to severe injuries or even death.

⚠ WARNING

- Indication of a potentially dangerous situation that may lead to severe injuries or even death.

△ CAUTION

- Indication of a potentially dangerous situation that may lead to minor injuries.

ATTENTION

- Indication of a potentially dangerous situation that may lead to damage to property.

General safety instructions

⚠️ DANGER • Only connect the device to alternating current. The voltage indicated on the type plate must match the voltage of the power source. • Never touch the mains plug and socket with wet hands. • Risk of asphyxiation. Keep packaging film out of the reach of children. • Operation in explosive atmospheres is prohibited.

⚠ WARNING • Persons with reduced physical, sensory or mental capabilities, or those with a lack of experience and knowledge, are only allowed to use the appliance if they are supervised or have been instructed with respect to using the appliance safely, and understand the resultant dangers involved. • Children from the age of 8 may use the appliance if they are supervised or have been instructed in its use by a person responsible for their safety, and if they have understood the resultant dangers involved. • Children must not play with the appliance. • Children must be supervised to prevent them from playing with the appliance. • Children may only perform cleaning work and user maintenance under supervision. • Check the power supply cable with mains plug for damage before operation each time. Do not put the device into operation with a damaged power supply cable. Have a damaged power supply cable replaced immediately by the authorised customer service / qualified electrician. • Switch off the device immediately and remove the mains plug before performing any care and service work.

⚠ CAUTION • Do not pull the mains plug out the socket using the power supply cable. • Have repair work, installation of spare parts and work on electrical components carried out by the authorised customer service only. • It is prohibited to cover the air inlet and outlet. • Switch off the device after each use and remove the mains plug. • Do not place the device near a heat source. • The device is not a replacement for appropriate ventilation. • The device must be placed on an even, firm subsurface. • Only use accessories and spare parts which are approved by the manufacturer. Only original accessories and original spare parts ensure that the appliance will run fault-free and safely.

- Do not use the device in damp conditions or in rooms with high ambient temperatures, e.g., bathrooms.

Intended use

In accordance with the descriptions and safety instructions listed in these operating instructions, use the device only as an air purifier.

• The device is intended for use as an air purifier.
• The device is suitable for both private and commercial use.
• The device is intended only for indoor use.

Environmental protection

The packing materials can be recycled. Please dispose of packaging in accordance with environmental regulations.

Electrical and electronic appliances contain valuable, recyclable materials and often components such as batteries, rechargeable batteries, or oil,

which - if handled or disposed of incorrectly - can

pose a potential threat to human health and the environment. However, these components are required for the correct operation of the appliance. Appliances marked by this symbol are not allowed to be disposed of together with household rubbish.

Notes on the content materials (REACH)

Current information on content materials can be found at: www.kaercher.com/REACH

Accessories and spare parts

Only use original accessories and original spare parts. They ensure that the appliance will run fault-free and safely.

Information on accessories and spare parts can be found at www.kaercher.com.

Scope of delivery

The scope of delivery for the appliance is shown on the packaging. Check the contents for completeness when unpacking. If any accessories are missing or in the event of any shipping damage, please notify your dealer.

Warranty

The warranty conditions issued by our relevant sales company apply in all countries. We shall remedy possible malfunctions on your appliance within the warranty period free of cost, provided that a material or manufacturing defect is the cause. In a warranty case, please contact your dealer (with the purchase receipt) or the next authorised customer service site.

(See overleaf for the address)

Description of the device

For the illustrations, refer to the graphics page. Illustration A

① Operation button for Device On / Off ② Operation button for Function lock ③ Display PM 2.5 Air quality index ④ Operation button for Switch off display ⑤ Display for fan level ⑥ Operation button for Auto mode On / Off ⑦ Fan level operation button ⑧ Operation button for Sleep mode On / Off ⑨ Timer display ⑩ Operation button for Timer ⑪ Filter service life display ⑫ Operation button for Filter reset ⑬ Air quality display and device display ⑭ Filter cover lock ⑮ Filter cover ⑯ Filter tab ⑰ Filter

⑱ Connection for power supply unit ⑲ Device sensor ⑳ Power adapter

Note

The function settings are only possible via the operation buttons and not via the displays.

Inserting the filter

Before initial start up, the fine filters already installed in the unit must be unpacked.

1. Turn the device over, and turn the filter cover lock 90 degrees clockwise.

Illustration B

1. Remove the filter cover.

Illustration C

1. Remove the packed filters.

Illustration D

1. Unpack the filters.

Illustration E

1. Insert the unpacked filters. Ensure that the draw shackles are visible and point inwards.

Illustration F

1. Put on the filter cover and turn the lock 90 degrees anticlockwise. Turn the device over with the display facing upwards.

Illustration G

1. Place the device on a level surface. Ensure that a distance of 30 cm is maintained to each side.

Illustration H

Note

Do not place the device on hot surfaces or in the immediate vicinity of the room heating.

Do not allow any liquids or foreign bodies (e.g. metallic objects) to enter the device.

1. Insert the plug of the power supply unit into the device and insert the mains plug into the socket.

Illustration I

The device is ready for operation.

Note

The first time you use the device, we recommend allowing it to run overnight to perform an initial basic cleaning of your room.

Note

The table with the hours of the display symbols for the filter service life, see Replacing the filter

Operation

Switching the device on/off

1. To switch on the device: Press the on/off button on the device.

Illustration I

The device starts automatically.

Note

After the system is switched on, the displays and buttons on the control panel light up briefly. The integrated air quality sensor measures the air quality in the room automatically.

1. If required, the following functions, for example, can be set via the operation buttons:

- Fan level

- Auto mode

- Sleep mode

- Timer

1. To switch off the device: Press the On/Off switch of the device.

The displays and buttons on the control panel go out. The device is switched off.

Setting auto mode

In automatic mode, the air purifier sets the appropriate fan level depending on the air quality.

In the event of poor air quality, for example, the fan level is automatically set high.

Symbol for the auto mode operation button:

- Press the auto mode operation button. The automatic mode is switched on or off.

Setting sleep mode

In sleep mode, the fan runs at the lowest speed and is therefore very quiet. All light symbols are off.

- Press the sleep mode operation button. The sleep mode is switched on or off.

Symbol for the sleep mode operation button:

Depending on the air quality, the fan level can be manually set to level I, II, or III. If the air quality is poor, for example to filter out smoke, the blower should run at maximum speed (level III) for 15-20 minutes.

Note

To clean the air effectively, keep windows and doors closed while the air purifier is switched on.

Symbol for the fan level operation button:

- Press the fan level operation button repeatedly until the desired level is reached.

The selected fan level is displayed on the control panel.

Setting the timer

The timer can be set to 2, 4, 6, or 8 hours of run time. When the set time has elapsed, the device switches off automatically. The fan level can be changed at any time.

Symbol for the timer operation button:

- Switching on: Press the Timer operation button repeatedly until the desired run time is reached. The display lights up. The set run time is displayed on the control panel.

- Switching off: Press the Timer operation button until the timer display goes out. Timer is off.

Lock / unlock control panel

To prevent accidental change of settings, e.g. by children or pets, the control panel can be locked.

Symbol for the lock operation button and display for control panel:

- Lock: Press the button for 3 seconds.

- Unlock: Press the lock button for 3 seconds.

Display PM 2.5 air quality

The display shows the concentration of fine dust (PM 2.5) numerically in the unit μg/m³. In addition, a colour index provides information about the air quality:

PM 2.5 Air quality	Colour
0 - 60 Good Blue
61 - 120 Moderate	Yellow
121 - 500 Poor Red

Transport and storage

△CAUTION

Failure to observe the weight

Risk of injury and damage

Be aware of the weight of the device during transport and storage.

Store the device only in dry indoor rooms.

Care and service

Cleaning

⚠️DANGER

Danger of death from electric shock

Liquids can conduct electricity and thus cause serious or fatal injuries.

Always disconnect the power supply unit from the socket before cleaning and maintenance work.

Never immerse the device or the power supply unit in water.

Never use wet cloths to clean the device or the power supply unit.

1. Switch off the device.
2. Unplug the power supply unit from the socket.
3. Wipe the device with a soft, dry cloth. Do not use abrasive or corrosive detergents.

Replacing the filter

The filter should be changed after 2500 - 3000 hours of operation at the latest. If the device becomes louder, an unpleasant smell emanates from the device (filter) or the filter is visibly dirty, it should be changed at an earlier stage. The symbol flashes in the display to remind you of a required filter change.

Symbol for the operation button for filter reset:

Depending on the service life, the following number of symbols is displayed:

Display for service life of filter (h)
2401 - 3000
1801 - 2400
1201 - 1800
601 - 1200
1 - 600

1. Switch off the device, and disconnect the power supply unit from the socket and device. Illustration J
2. Turn the device over, and turn the filter cover lock 90 degrees clockwise. Illustration B
3. Remove the filter cover. Illustration C
4. Remove the filters. Illustration D
5. Unpack the new filters. Illustration E
6. Insert the unpacked filters. Ensure that the draw shackles are visible and point inwards. Illustration F
7. Put on the filter cover and turn the lock 90 degrees anticlockwise. Turn the device over with the display facing upwards.

Illustration G

1. Connect the power supply unit to the device and socket.
2. Switch the device on. a To reset the filter (Reset), press the symbol for 3 seconds. Illustration K

Troubleshooting guide

Malfunctions often have simple causes that you can remedy yourself using the following overview. When in doubt, or in the case of malfunctions not mentioned here, please contact your authorised Customer Service.

Fault Cause Rectification
The device cannot be switched on	No electrical voltage present	● Check the socket and the power supply fuse. ● Insert the plug of the power supply unit into another socket.
	Power supply unit defective	● Contact Customer Service to replace the power supply unit.
	Device defective ● Contact Customer Service.
Display flashes and device does not start	Filter cover not inserted correctly	● Insert the filter cover correctly, making sure that the filters are seated correctly.
Airflow is reduced	Filter clogged	● Changing the filter, see chapter Replacing the filter.
	Filter not unpacked	● Unpacking the filter, see chapter Inserting the filter.
	Fan level too low	● Increasing the fan level, see chapter Setting the fan level.
	Air outlet is blocked	● Remove foreign bodies.
Odour elimination ineffective	Poor ambient air quality	● Open windows to improve ventilation.
	Filter used up or used too long	● Replace the filter.
	Fan level too low	● Increasing the fan level, see chapter Setting the fan level.
Poor air quality	Fan level too low	● Increasing the fan level, see chapter Setting the fan level.
	Draught	● Close the windows and doors while the device is working.
	Room size clearly above 20 m2	● Observe the maximum room size.
	Air slots on the device blocked	● Keep the required distances from the device. ● Do not place anything on the device.
	Filter not unpacked	● Unpacking the filter, see chapter Inserting the filter.
	Filter clogged or contaminated.	● Changing the filter, see chapter Replacing the filter.

Technical data

Electrical connection
Mains voltage V 100-240
Phase ~ 1
Power frequency Hz 50 - 60
Nominal power W 24
Standby	W	<0,5
Device performance data
Clean air flow rate	m3/h	220
Floor space	m2	* 20
Filter efficiency at 0.3 μm		99,95%
Maximum filter working time (de-pending on environment)	h 3000
Ventilation levels		3
Dimensions and weights
Weight	kg	2.7
Length x width x height	mm	220x220x343
Ambient conditions
Ambient temperature	°C	- 10 °C -+ 40 °C
Determined values in acc. with EN 60335-2-69
Sound power level LwA	dB(A)	26-52

* At 3 m ceiling height and 3 x air exchange per hour. Subject to technical changes without notice.

Content

Symbol for timer control button:

Transport and storage

CAUTION

Disregard of weight

Prikaz radnog veka filtera (h)
2401–3000
1801–2400
1201–1800
601–1200
1–600

1. Switch off the device and unplug the power cord from the socket and the device. Figure J
2. Turn the device and rotate the filter cover lock 90 degrees clockwise. Figure B
3. Remove the filter cover. Figure C
4. Remove the filter. Figure D
5. Unpack the new filter. Figure E
6. Insert the unpacked filter. Make sure the pull tabs are visible and point inward. Figure F
7. Replace the filter cover and rotate the lock 90 degrees counterclockwise. Turn the device with the display upward. Figure G
8. Connect the power cord to the device and the socket.
9. Switch on the device. a To reset the filter (reset), press the symbol for 3 seconds. Figure K

Troubleshooting assistance

Malfunctions usually have simple causes that you can resolve yourself with the help of the following overview. If you have any doubts or malfunctions not listed here, please contact an authorized service center.

www.kaercher.com/REACH

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Alfred Kärcher SE & Co. KG

Alfred-Kärcher-Str. 28-40

71364 Winnenden (Germany)

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