Frequently Asked Questions (FAQ) - Airfresh Clean 400

The Airfresh Clean 400 filters pollen, house dust, dust mites, animal hair, viruses, bacteria, odors, fine dust, mold spores from indoor air, volatile organic compounds (VOC) e.g. formaldehyde.

The Airfresh Clean 400 reduces allergies because its multi-stage filtration system filters out up to 99.95% of airborne particles.
The pre-filter filters large, heavy particles such as pet dander, dust mites and dust.
The fine particle filter captures mold, dust mites, spores, pollen and microscopic dust particles from the air.
These fine particles can trigger allergy and asthma symptoms.
In addition, the activated carbon filter serves to remove hazardous gases such as formaldehyde and VOC compounds.

Only the pre-filter is washable. The other filter components are NOT washable and can only be easily cleaned with a vacuum cleaner, preferably using a vacuum cleaner attachment

1. Polluted air is sucked in. Large particles such as hair and dust are filtered out by the pre-filter.
2. Replaceable high quality HEPA filter removes pollen, dust, bacteria, viruses, ultra fine particles.
3. The activated carbon layer in the filter even removes odors and gases from the air.
4. In addition, the optional switchable UV-C light ensures a reduction of microorganisms and viruses.
5. The Airfresh Clean 400 evenly dispenses the clean air for comfortable air purification at home.

Please check if the Airfresh Clean 400 is connected to a power source. If this is not the cause of the error, then follow the next step. 2.
Open the bottom cover (only when the unit is switched off) and check that the filter is correctly inserted. Now replace the bottom cover and make sure that the screw cap is tightly closed and properly engaged in its position

The device should be positioned so that the room air can be drawn in and discharged without obstruction.
This means:
1. Free upwards (e.g. not under a table).
2. Laterally, a minimum distance of 0.5m from the walls, furniture, etc. would be recommended

In general, our devices are whisper quiet (30 decibel) in the lowest setting, and in the powerful turbo mode the volume is roughly comparable to a conversation between two people.
Various reasons can cause an unusually high noise level.
Please check if there are any foreign objects in the fan and the filter is clean and properly installed. In addition, make sure that the unit is placed on a solid surface.

The filter should be replaced with a new filter after approx. 4,000 operating hours. The filter replacement indicator (FILTER RESET) will start flashing automatically.
We recommend the use of original Soehnle replacement filters.

The luminous LED ring on the top shows you the current level of fine dust pollution by different colors: 
RED = high load
PINK = medium load
PURPLE = low load
BLUE = no load 

The Airfresh Clean 400 is suitable for a room size up to 38m²*.

*Calculated according to NRCC-54013; Suitable for larger rooms with longer runtime

The word "CADR" is the abbreviation for Clean Air Delivery Rate and is a performance figure for air purifiers that is intended to facilitate comparison between different models.
In addition to filter efficiency, air turnover in cubic meters per hour (m3/h)* is also of considerable importance.
The reported value for the Airfresh Clean 400 of 145 m³/h applies to the highest fan setting.

*In most cases, the rate of air delivered cleaned is specified, the so-called CADR value. See also explanation CADR.