Rated 5 out of 5 based on 1 customer rating
(1 customer review)

Installation Fee: HK$1,500 (for window size less than 60cmx120cm)

Model F390 Fresh AirFlow Purifier is quiet and equipped with a heavy duty centrifugal fan with its backward turning impeller which is more powerfull and more effective in raising the CADR (Clean Air Delivery Rate) to a higher level. It could be installed both on floor and on bay window. Installation is done inside the unit and air purifier is not seen from outside of the building.

SKU: F390 Categories: , Tag:


Weight 21 kg
Dimensions 390 x 390 x 450 mm

White (custom colour – optional)


Touch On/Off
Ultra Red Light Remote Control

LED (Red)
1 minute bright
5 minutes dim
LED off after 6 minutes
LED will be on again by trigger of remote control to resume control of air purifiers
CADR (Clean Air Deliver Rate)

462 cubic meters per hour

Living Area

84 square meters

Automated Control
By sensor
Normal Mode RH < 80%, Temperature > 18°C
High Humidity Mode RH > 80%
Low Temperature Mode Temperature < 18°C
Manual Control
On/Off by remote control
A/C Adaptation Mode Prevent water condensation to keep device inside dry
Fan Speed 1, 2, 3, 4 & 5
Warm Air Mode (optional) H1, H2, H3, H4 Raise outdoor air temperature by 20°C and indoor air temperature by 10°C

25/45 DBA measured at 2 meters

Power Cable

1.8 meter (white)

Power Supply

AC220-240 50-60 HZ

Power Watts
Normal Mode 77W
High RH Mode 130 – 327W
Low Temperature Mode 130 – 327W
Warm Air Mode 300 – 977W
Standby Mode <1W
DC Fan Motor 77W
Electric Heater 250W
Warm Air Heater (optional) 200 – 900W
AIRO2 Filter Prices
Pre Filter (G4) HK$200
Active Carbon (optional) HK$400
HEPA Filter (H13) HK$550
AIRO2 Filter Life Time
Depending on air pollution conditions and general use of AIRO2, our proprietary filters will be effective up to 12 months. When not in use, the expected lifetime is about 3 years.

3 years complimentary warranty (parts and labour)

Refund Policy

100% refund on air purifier if not satisfied within 30 days (not including filters and installation charge)

Committed Performance

Ventilation Standard (ASHRAE standard)
Maintain Indoor CO2 Concentration under 1000 ppm
Purification Standard (WHO standard) Maintain indoor air PM2.5 under 10 ug/m3
For proposed purchase of 10 air purifiers and above one air purifier is provided for 30 Days Performance Free Trial

Procedure to Switch ON/OFF Unit

  1. Connect the air purifier to power supply AC 220/240 / V 50-60 HZ
  2. On/Off control : Press the RED POWER KEY on the LED remote control or press the POWER KEY (at bottom right corner) on the LED display panel.
  3. Press the up and down ARROW KEY on the LED remote control to achieve fan speed 1 t0 5.
  4. Speed number is shown at the bottom of the LED display panel.

Automatic Control

  1. When relative humidity is above 80%, High Humidity Mode light (under RH) will be ON and relative humidity will automatically maintain under 80%.
  2. When incoming air temperature is under 18C, Low Temperature Mode light (under C) will be ON and incoming purified air temperature will automatically maintain at about 20C.

Manual Warm Air Control Mode

  1. Press the M key on the LED remote control to activate heater from 0 to 4 to raise incoming purified air temperature up to about 30C.
  2. Manual Warm Air Control Mode will be denied when incoming purified air temperature is 28C or above.

Manual Air Conditioning Adaptation Mode

Press AC when air conditioner is ON to activate Air Conditioning Adaptation Mode.

Filters Clogging Indicator

When the small ball at the bottom of the LED display panel retreats behind the original position (same fan speed with new filters) indicates time for change of filters.


  1. Rated 5 out of 5

    When I first moved to my new apartment I was constantly congested, was having trouble sleeping, had itchy eyes and just a general feeling of discomfort in my sinuses. I had already lived in Hong Kong for 2 years without a problem so I figured it had something to do with the indoor air quality at my new location (Casa 880 in Quarry Bay). I was actually purchased and was going to use an IQ Air HealthPro 250 but after taking the time to listen to the benefits of the AirO2 F390, I decided to go use this unit instead. What I really like is that this unit brings in outside air, creating a continuous stream of fresh air into the apartment. Within a week of having the unit installed my sinuses cleared up, I began to sleep better and feel more refreshed then I ever have before. The unit has worked perfectly and I could not be happier with the product or the service. For anyone looking to improve the indoor air quality of their apartment I would highly suggest this unit.

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