Britec AIRPURE BP400, Operating Instructions Manual

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Press the FAN SPEED button to select between the level A-1-2-3-A (automatic). The fan speed icon
will display for 5 seconds (pic.5), and show the PM2.5 value.
If you want to deactivate the wiping sensor (pic.2), press and hold the FAN SPEED button for 10
seconds (pic.6). To reactivate the wiping sensor, repeat the process.
When the appliance is in a dark environment, it will enter into the sleep mode automatically after 1
minute. When the environment is bright again, the sleep mode will be deactivated after one minute.
Base on the measured PM2.5 and VOC values, you can choose a suitable fan speed by using the
following tables or you can use the auto mode which regulates the performance level automatically:
1. PM2.5 value
Pic.4 Pic.5 Pic.6
0-75 76-150 151-500
Good Medium Bad
1 2 3
Green Yellow Red