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Getting to Know your Air Purifier - AS401WWA

Operation Air Care Solutions Last Updated 07/30/2016

Please see below a summary of the control panel and display, operation of the unit, maintenance of the unit and installation tips.




Start / Stop button Starts and stops the product.
Fan Speed button Adjusts the speed and volume of the fan.
Indicator button Toggles between PM density results for different dust particle sizes.
Sleep Timer button Sets the appliance to sleep mode and automatically turns it off after the selected amount of time.
Filter Reset button Resets operating time after replacing the filter.
Lock function Locks control panel so product won't be accidentally turned off or settings changed by children or others.
Filter Life light Turns on when filter needs to be replaced (after 4000 hours of operation).
PM density display Shows the density of dust for three different particle sizes.
Lighting button Turn the air quality indicator light on/off.


*Guide to PM (Particulate Matter)

    PM 10: dust particle size is equal or below 10 μm (Sources include nearby fires and dust stirred up by vehicles on roads.)
    PM 2.5: dust particle size is equal or below 2.5 μm (Sources include exhaust from motor vehicles or power plants, wood burning fires, and some industrial processes.)
    PM 1.0: dust particle size is equal or below 1.0 μm (Sources include cigarette smoke and smog.)

Getting to know all the functions of your air purifier

    1. Pull to open the rear panel.
    2. Remove the filter from the appliance.
    3. Remove the filter from its packaging.
    4. Insert the filters with the deodorizing filter facing up. Make sure to slide the tabs on the top of the handle into the grooves at the top of the rear panel.
    5. Close the rear panel.
    6. Place the air purifier on a stable, level surface with a clear area around it for air to circulate.
  • The air purifier cleans and refreshes indoor air.

    1. Press the Power button to turn on the air purifier.
    2. A chime sounds and the PM density display and the fan speed display turn on.
    3. Press the Speed button to select the desired fan speed.
    4. Note: If the fan speed is set to Turbo, pressing fan speed button will start over from Auto.



  • Press the Lighting button to turn the air quality indicator light on / off.



    1. Press the Indicator button to check the density of PM 10 / PM 2.5 / PM 1.0.

      Note: Pressing the button repeatedly toggles through to check the density of PM 10 → PM 2.5 → PM 1.0 in turn. The selected density displays for 10 seconds before the display reverts to the highest measured PM (particulate matter) level.

    2. Check the dust particle size LED indicators.

      Note: PM density is displayed based on the dust density result with the highest contamination level.

      For example: if PM 10 density is 100 (normal), PM 2.5 is 50 (bad), and PM 1.0 is 30 (normal), the value for PM2.5 is displayed for PM density.



  • Overall indoor air quality is displayed as one of four colors depending on the contamination level of PM 10, PM 2.5, PM 1.0, and odors.

    (contaminated) red → orange → yellow → green (clean)

    Note: The color that the air quality indicator light displays is based on the worst level among PM 10, PM 2.5, PM 1.0, and odor.

    Note: PM density ranges from 8 to 999 in increments of 1.

  • Use this to set the air purifier to sleep mode before it turns off automatically.

    1. Press the Power button to turn on the air purifier.
    2. Press the Sleep Timer button set the amount of time in sleep mode until the air purifier automatically turns off.
      Once Sleep Timer is set, only the Sleep Timer LED is lighted. All other lights on the product, including the air quality light, are turned off. The fan is maintained at a low speed to keep noise to a minimum. Once Sleep Timer is set, pressing the Sleep Timer button again displays the set turn off time and wakes the display up.

    3. Note: The amount of time in sleep mode can be set by pressing Sleep Timer repeatedly to toggle through the options: 2 hours, 4 hours, 8 hours, 12 hours, disabled (reverts to normal display).

      For example: If set for two hours the product operates for two hours in sleep mode then automatically turns off.


    4. To disable the Sleep Timer function, press the Sleep Timer button repeatedly until 12 appears in the display. Press once more to disable the function and return the display to normal.
    5. Even though Sleep Timer function, Lock function and Filter Life light can appear on the display.
    6. Once The product is turned off, Sleep Timer function set is off.

    Turning the timer ON

    Turning the timer OFF

    1. Press the Power button.
    2. Press and hold the Fan Speed Button and Indicator Button at the same time for 3 seconds or until a beep sounds and the Lock lights up.

    Note: The Lock function helps protect the product from unwanted operation by children or others.
    To disable the Lock function, Press and hold the Fan Speed Button and Indicator Button at the same time for 3 seconds or until a beep sounds and the Lock display turns off.
    The Lock function cannot be set while the power cord is unplugged.

    Turning the lock ON

    Turning the lock OFF

  • The Filter Life light turns on based on the operating time (after 4,000 hours of use).

    If Filter Life light turns on.

    1. Press the Power button to turn off the product and then unplug the product
    2. Open the rear panel of the product and check the filter. If the filters are contaminated, clean or replace them.

    Note: Refer to the Maintenance section for instructions on cleaning and replacing the filters.

    To reset the filter:

    1. Press and hold the Filter reset button for 3 seconds or longer (Filter Reset function).


Filter Maintenance Schedule

    Filter types Classification Cleaning cycle Cleaning Method
    Pre-Filter Washable About every month Clean the pre-filter with vacuum cleaner or brush, followed by
    rinsing under running water.
    PuriCare Main Filter Not washable,
    replace
    About every 12 months
    (or after 4,000 hours of use)
    The replacement cycle for Puricare Main Filter and
    Deodorizing Filter may vary depending on the usage environment.
    Deodorizing Filter
    Sensor Cotton swab About every 6 months Clean the dust sensor lens with cotton swab.

Maintenance Video

Cleaning the Sensor

    1. Turn off and unplug the product.
    2. Open the dust sensor cover.
    3. Clean the dust sensor lens with cotton swab.

    Note: Clean once every six months.

Filter Maintenance

    1. Turn off the power and unplug the appliance. Then pull open the rear panel.
    2. Pull the filter set by the top handle to remove it from the appliance.
    3. Note: Dust may accumulate on the filter net.
      Before disassembling filter set, move the filters to a convenient location for vacuuming.
      Place a newspaper or paper towel down to catch any loose dust.

    4. While holding the filter case over the newspaper, push up on the sides of the pre-filter to separate it from the filter set.
    5. Clean the pre-filter using a vacuum cleaner or brush. If the filter is very dirty, rinse it under running water after cleaning it with a vacuum cleaner.
    6. Note: Do not wash the Main Filter or the deodorizing filter with water. Replace them when they become very dirty. Do not expose them to water during operation.
      The life-expectancy of filters may differ depending on the usage environment.

    7. Press in the marked tabs on the sides of the deodorizing filter case to separate it from the PuriCare main filter case.
    8. Remove and replace the deodorizing filter if necessary.
    9. Note: Do not operate the air purifier without the deodorizing filter.

    10. Remove and replace the PuriCare main filter if necessary. Make sure to completely insert the new filter so it fits under the four tabs on the inside of the filter case.

    11. After cleaning or replacing filters, reassemble the filters and filter cases. Insert the bottom tab on the deodorizing filter case into the bottom slot on the PuriCare main filter case before snapping the two cases together. Then fit the tabs on the pre-filter into the slots on the PuriCare main filter case and push down on the sides to lock the pre-filter in place.

    12. Insert the filters back into the air purifier with the deodorizing filter facing up. Remember to fit the two tabs on the filter case handle into the slots on the top of the rear panel and close the rear panel.

Below are some installation tips to optimize the units performance as well as protect your household.

  • Do not place the air purifier in a corner.
  • Avoid surrounding the appliance with furniture and electronic equipment or crowding it into a corner. The air purifier works best when air is free to circulate around it.
  • Avoid installing the unit within 3 1/4 ft (1 m) of any TV or audio equipment.
  • Provide clearance of at least 5 ft (1.5 m) from lighting appliances and at least 4 in. (10 cm) from walls. Failure to do so may result in product discoloration or loss of cleaning performance.
  • This appliance is not designed for maritime use or for mobile installations such as in RVs, trailers, or aircraft.

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