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[LG Air Purifier] Fine dust concentration is high in winter

  • Troubleshooting

Is the concentration of indoor fine dust exceptionally high even if an air purifier is used?

Are you experiencing this cause/symptom?

  • I cooked food indoors.
  • There is a humidifier next to it.
  • The outside air is coming in through the ventilation system.
  • PM1.0 (dust) sensor is contaminated.

Learn more about it.

In winter, outdoor fine dust levels are high, so operating an air purifier may not reduce indoor dust levels.
In this case, first check the ventilation system to see if polluted air from outside is entering indoors.
Also, if you use the air purifier in a place larger than the capacity of the product, the air cleaning performance may not be sufficient.

Try this:

Do you leave the air purifier on when you cook?

➔ When cooking, open the window to ventilate and turn on the air purifier after you’re done cooking.

Fine dust is generated when you cook with the windows closed.
If you use an air purifier in this condition, the grease particles can adhere to the filter, and the filter replacement cycle can be shortened.
When cooking, turn off the air purifier and open the window to ventilate.
Turning on the air purifier after cooking can effectively eliminate fine dust while saving filter life.

Not using an air purifier while cooking

Is there a humidifier near the air purifier?

➔ Dust sensors applied to PuriCare air purifiers identify water molecules emitted from ultra-soundwave/heating humidifiers as dust particles.

We do not recommend using air purifiers together with ultrasonic/heated humidifiers.
If you want to use a humidifier, using a natural vaporization humidifier is recommended.

※ The scale included in the water molecules of ultrasonic humidifiers causes the lifespan of the filter to shorten.

Placing air purifiers a certain distance away from the humidifier;

Has it been a while since you cleaned the PM1.0 sensor?

➔ If there is a lot of dust in the sensor, it cannot be measured exactly.
Please clean the PM1.0 sensor once every two months.

Remove the air purifier cover and open the cover of the sensor marked [PM1.0 SENSOR].
Wipe the lens in the 10 o'clock direction inside with a slightly wet cotton swab.
Wipe the lens with a dry cotton swab to completely remove moisture and assemble the air purifier cover.

Order of dust sensor cleaning. Remove cover, Clean sensor, Assemble cover
Cleaning the dust sensor
Please keep this in mind!

How to check the sensor status when dust levels remain [Good]

1. To test whether the PM 1.0 dust sensor is working properly, prepare a sheet of paper (A4 paper).
2. Hold both sides of the upper part of the filter cover on the back of the product, pull it slightly toward your body, and lift it to separate.
3. Bring the paper close to the PM 1.0 dust sensor and tear it several times (about five times). Rub the torn edges for 10 to 15 seconds.
4. When the sensor detects the dust caused by friction between the torn parts, the dust level will rise.
If the product reacts as above, the dust sensor function is working normally. If there is no change, an engineer check-up is needed.

How to check the sensor status when dust levels remain [Very bad]

1. Open the PM1.0 sensor cover, block the inlet with clear tape, and operate the air purifier for about 10 minutes.
2. If the fine dust concentration changes to [Good], the sensor is working properly.
If there is no change, please consult with the LG Electronics Service Center.

Is the outdoor fine dust concentration high?

➔ Turn off the indoor ventilation system in the house for a while and then operate the air purifier.

Please shut down or turn off the ventilation system in the house to prevent outside air from coming in on days of high outdoor fine dust.
Ventilation systems are usually installed on the balcony window or near the utility room.
For apartments, ventilation systems can be adjusted through the wall pads installed on the living room walls.
Next, select the Clean Booster function to set the booster speed to [High] or [Turbo]. This way, you can lower indoor fine dust levels more quickly.

The indoor ventilation system. Ceiling and window frame ventilation system

This content was created for common use and may contain different images or information from the purchased product.

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