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Idiomas disponibles
Idiomas disponibles
Filter replacement
8.2 Filter replacement at a glance
1
2
SQ1750
Antiviral air purifier
3
Pre-filter
* Applies to models with integrated UV lamps
32 – EN
(1) Control element
4
(LED touchscreen)
4
(2) Lock housing lid
(3) Key for housing lid/cover
prefilter element
5
(4) Clean air outlet
(5) Housing lid
(6) Air inlet bottom
6
(7) Cover prefilter element
7
HEPA
Filter
8.3 Filter replacement
Note
Under normal conditions of use, such as in offices, medical practices, schools and
environments with regular room cleaning, it is recommended to replace both the
prefilter and the HEPA filter at least every two years (if the filter replacement is not
already indicated in the LED display beforehand). An earlier end of service life (due to
improper use and increased contamination, for example) may be manifested by a
louder operating noise or unusual odor development, among other things. In these
cases, the prefilter must be replaced before the recommended service life has been
reached. If you operate the UV-C lamps for longer than 15 minutes per day, this may
shorten the service life of the HEPA filter.
8.3.1 Replacing the pre-filter
Proceed as follows to replace the pre-filter:
1. Switch off the fan and the UV-C lamps*.
2. Pull on the plug to remove the power cord from
the socket on the appliance.
3. Unlock the lock and open the cover on the front of the device.
4. Pull out the pre-filter horizontally.
For filter disposal, please observe the special safety
instructions.
5. Push the new pre-filter horizontally into the pre-filter
compartment as far as it will go until it is fully inserted.
6. Close and lock the cover and then remove the key.
* Applies to models with integrated UV lamps
Filter replacement
Vorfilter
EN – 33
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