PLEASE NOTE! The device is equipped with an electromechanically
driven air duct flap (“the flap” in what follows). It opens the air inlet duct
when the device is turned on. After turning the device off the flap closes
the channel to prevent cold air from penetrating into the room. The flap
takes 7-10 s to open/close. If the flap is not fully closed because of an
unexpected failure, a double warning beep is issued.
Oxygen-rich air from outside is drawn into the air intake pipe of the device. The air
intake section prevents rainwater from penetrating into the housing. The air is then fed
into the device through the flap via a heat insulated channel. If the device is turned off,
the flap closes the channel for outside air into the device. The air cleaning is performed
inside the casing. The schematic of the operation is shown in Fig.2.
1. Air duct flap
2. Control buttons and LCD display
3. Power switch
4. Base lter F7 (retainer of coarse
dust F7)
5. Heater
6. High-efciency HEPA E11 (H11)
lter (retaining ne dust)
7. Adsorption catalytic lter AK (ab-
sorber of noxious gases)
8. Maintenance panel latches
9. The device must not be used if the
power supply cord insulation or any
part of the housing is damaged.
10. If any damage or possible signs
of abnormal operation are detect-
ed, pull the plug out of the power
socket and contact an authorized
service center for advice on further
operation of the device.
Figure 2. Device operating principle