Center Indicator Ring
The display brightness can vary with ambient light.
Press the Wi-Fi button to switch the display contents:
PM10 -> PM2.5 -> PM1.0 -> TVOC. When switching to the
corresponding display value, air quality is judged according to the
corresponding sensor value.
AstroPure
™
550C
Touch Panel with LED Display
Night Mode
Turns off all lights on the control panel and
silences the fan to an almost inaudible
whisper. Fan speed will automatically be set
to 1.
Smart Sleep
The unit will automatically enter Night Mode
when there is low ambient light for 20
seconds. In turn, the unit will also
automatically exit Night Mode when ambient
light brightens up for more than 20 seconds.
Auto Mode
Unit determines the best environment needs
and adjusts the settings accordingly.
Wi-Fi
Use this icon in 2 ways:
To pair with your Mobile phone.
Press the Wi-Fi button for 3 seconds to initiate
the pairing. When the Wi-Fi icon is blinking,
indicate that the unit has not yet been paired
successfully.
To check real-time air quality reading
•
PM 10 - Press once
•
PM 2.5 - Press twice
•
PM 1 - Press thrice
•
TVOC - Press 4 times
Fan Speed
Select desired fan speed from 1-5 with 5
being the highest and 1 being the lowest.
UV-C
Press to enable or disable the UV-C.
Replace Filter
Filter change indicator. LED light blinks when
it is time to replace the filter. After replacing
the filter, press and hold the button for 5
seconds to reset.
Air Quality Indicator (Multicolor Ring)
Blue (Good)
PM2.5 : < 16 µg/m
3
TVOC : < 56 ppb
Green (Moderate)
PM2.5 : 16 - 65 µg/m
3
TVOC : 56 - 222 ppb
Orange (Bad)
PM2.5 : 66 - 150 µg/m
3
TVOC : 223 - 667 ppb
Red (Poor)
PM2.5 : > 150 µg/m
3
TVOC : > 667 ppb
Child Lock
Press this button for 3 seconds to
enable or disable Child Lock.
* PM2.5 value reference to EPA guidelines.
** TVOC value reference to WHO guidelines.
Child Lock
Press this button for 3 seconds to
enable or disable Child Lock
