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Air washer AW 20 S
3-in-1 comfort device with combined sensor and HEPA filter – our best recommendation for a perfect room climate
The air we breathe is pure vital energy; its quality has a direct impact on our well-being and health. And since we breathe in about 8,000 litres of air each day – approx. 80 % of which indoors –, an ideal room air quality is a decisive factor for vigour and vitality.
The air washer AW 20 S is perfectly equipped to ensure optimum room air quality at all times. In addition to the relative humidity, the intelligent combined sensor also permanently detects the particle burden of the room air and autonomously controls the automatic mode for perfectly humidified and cleaned air.
With the AW 20 S, even allergy sufferers can breathe a sigh of relief: thanks to effective HEPA filtration, the air is not only freed from house dust, pollen and animal hair – even the tiniest dirt particles consisting of fine particulates, allergens or mould spores are filtered out reliably.
Restful sleep is also guaranteed: In night mode, the AW 20 S operates ultra-silently and reliably frees the room air of pollutants while maintaining an ideal humidity level thanks to the natural principle of self-regulating cold evaporation so that your skin, nose and eyes are protected against drying out and you can benefit from a good night's sleep.
Additionally, an optimal humidity level also ensures reliable protection of your furniture, plants, parquet floors and musical instruments against drying out due to too dry room air.
With its range of functions, this air washer guarantees maximum versatility: the HEPA filtration can simply be deactivated if it is not needed – and since the humidification function can also be switched on and off separately, the AW 20 S is the ideal solution for room air purification throughout the year.
A few practical benefits:
- Sensor-controlled air purification and room air humidification by cold evaporation – conveniently combined in one device
- Intelligent combined sensor for simultaneous measurement of air humidity and quality enables energy-saving automatic operation
- Reliably removes house dust, pollen and animal hair from the air and simultaneously keeps it ideally humidified
- HEPA filter function can be activated for maximum air purification efficiency
- 9 different operating modes available
- Functionality for ultra-silent night operation
- Large water reservoir for long maintenance-free operations
- Low-maintenance and uncomplicated – easy disassembly and cleaning
- Low follow-up costs for maintenance and care
- Variable fan control for need-based room adjustment
- Can be used for air purification all year round thanks to a humidification function that can be switched on or off separately
- Many practical comfort functions
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Airwasher AW 20 S
The AW 20 S cleans and moisturizes the room air without filter mats. Moreover, the air washer bind i.e. pollen, animal hair, household dust and additionally thanks to AirgoPro-Ionenisolator eliminates unpleasant smells.
You save: 92.32 £
461.61 £ 369.29 £ incl. VAT
Show net price (VAT not included)
Details
Technical data | ||
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General information | ||
Article number | 1.160.000.020 | |
Humidification performance | ||
Max. humidification performance [ml/h] | 750 ml/h | |
Amount of air | ||
Stage Max. [m³/h] | 228 | |
Electrical values | ||
Mains connection | 230 V/50 Hz | |
Power input [W] | 24 | |
Electric connection | ||
Connection plug | CEE 7/16 | |
Cable length [m] | 1.7 | |
Recommended room size | ||
m² | 55 | |
m³ | 138 | |
Water tank | ||
Contents in [l] | 9 | |
Sound values | ||
Stage Min. - Distance 1 m [dB(A)] | 25 | |
Stage Max. - Distance 1 m [dB(A)] | 47 | |
Fan | ||
Axial | ||
stages | 3 | |
Dimensions | ||
Length (packaging excluded) [mm] | 410 | |
Width (packaging excluded) [mm] | 325 | |
Height (packaging excluded) [mm] | 420 | |
Weight | ||
(packaging excluded) [kg] | 10 |
Equipment, features and functions | ||
---|---|---|
Equipment | ||
Internal | ||
Housing design | ||
Plastic | ||
Functions and features | ||
Display of relative humidity | ||
Humidification function can be switched on or off separately | ||
Binds pollen, animal hair and house dust | ||
Pre-filter (replaceable) for higher filter efficiency | ||
99.97 % effective HEPA filtering of pollen, dust mite residue, mould fungus spores and other allergens | ||
HEPA function can be switched on or off as needed | ||
Reduces odours and electrostatic charges | ||
Effective functional principle without limescale or wet spots | ||
Sensor-controlled automatic operation | ||
Combined air quality and humidity sensor for automatic control | ||
Indication of the current air quality | ||
Noiseless night operation in whisper mode | ||
AirgoPro ion isolator for odour reduction / selectable | ||
Water filling level indicator | ||
Warning signal to indicate a low water level | ||
Automatic switch-off when water tank is empty | ||
Operating modes | 9 | |
Mobility | ||
Portable |
standard equipment
optionally available
not available
Accessories

Stick 10
Silver has special antibacterial properties. That's the principle that the SecoSan Stick is based on. The sticks keep your water fresh and free of germs. The silver ions which the stick releases independently into the water are harmless yet at the same time extraordinarily effective.
You save: 33 %
13.80 £ 9.19 £ incl. VAT
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LiQVit Hygiene Agent 1000 ml
In order to maintain the quality of the evaporation water in a humidifier at a constant level: the water hygiene agent LiQVit is the right solution. Exclusively available at Trotec! LiQVit prevents the formation of germs, algae, mould, bacteria and related strong smells.
You save: 60 %
18.42 £ 7.34 £ incl. VAT
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Descaler with color indicator
Liquid decalcifier based on amidosulfonic acid with color indicator and maleic acid content against re-calcification. Universally suitable for humidifiers, air conditioners, coffee machines and other hot water appliances.
You save: 60 %
18.42 £ 7.34 £ incl. VAT
Show net price (VAT not included)
Alternative products
AW 20 S with alternative products: | start comparison |

Airwasher AW 10 S
The AW 10 S cleans and moisturizes the room air without filter mats. Moreover, the air washer bind i.e. pollen, animal hair, household dust and additionally thanks to AirgoPro-Ionenisolator eliminates unpleasant smells.
You save: 92.34 £
276.96 £ 184.62 £ incl. VAT
Show net price (VAT not included)