Why does my Levoit LV-PUR131 Air Cleaner air quality indicator always stay red?
- SstanleydustinAug 30, 2025
If your Levoit Air Cleaner's air quality indicator always stays red, and the air purifier runs on high speed, clean the dust sensor lens.

Why does my Levoit LV-PUR131 Air Cleaner air quality indicator always stay red?
If your Levoit Air Cleaner's air quality indicator always stays red, and the air purifier runs on high speed, clean the dust sensor lens.
What to do if Levoit LV-PUR131 Air Cleaner air quality indicator always stays red?
If the air quality indicator on your Levoit Air Cleaner stays red and the unit runs on high speed, the dust sensor may need cleaning. Clean the dust sensor as instructed.
How to fix a Levoit Air Cleaner that won't turn on?
If your Levoit Air Cleaner doesn't power on, first ensure it's plugged into a working electrical outlet. If it is, try a different outlet to rule out an issue with the first one. Also, make sure the back cover is correctly placed on the unit. If the power cord is damaged, stop using the air purifier immediately and contact Customer Support. The unit might also be defective or malfunctioning.
Why does my Levoit LV-PUR131 randomly turn off?
If your air purifier is randomly turning off, it may be malfunctioning. Stop using the air purifier and contact Customer Support.
What to do if the Air Quality Indicator always stays red on my Levoit Air Cleaner?
If the Air Quality Indicator remains red, clean the dust sensor lens.
What to do if my Levoit LV-PUR131 Air Cleaner will not turn on?
First, ensure the air purifier is plugged in. Check the power cord for any damage; if damaged, discontinue use and contact Customer Support. Make sure the filter cover is securely closed to activate the safety switch. Try plugging the air purifier into a different outlet. If the issue persists, the air purifier may be malfunctioning, so contact Customer Support.
How to fix Levoit LV-PUR131 Air Cleaner that does not power on?
If your Levoit Air Cleaner doesn't power on, the issue might be with the power source. Check the outlet to see if it's working and try resetting the outlet if possible.
| Timer | Yes |
|---|---|
| Efficiency | 99.97 % |
| Noise level | 52 dB |
| Certification | CARB, FCC, ETL |
| Air purify rate | 230 m³/h |
| Noise level (low speed) | 27 dB |
| Timer duration (maximum) | 8 h |
| Timer duration (minimum) | 2 h |
| Operating temperature (T-T) | -10 - 40 °C |
| Suitable for room area up to | 33 m² |
| Particle filtration | 0.3 µm |
| Filtering capability | Cigarette smoke, Fine dust, Pollen |
| Number of filter stages | 3 |
| AC input voltage | 120 V |
| AC input frequency | 60 Hz |
| Power consumption (max) | 40 W |
| Power consumption (standby) | 0.8 W |
| Control type | Touch |
| Display type | LED |
| Product color | Black, White |
| Depth | 183 mm |
|---|---|
| Width | 371 mm |
| Height | 470 mm |
| Weight | 5210 g |
Safety guidelines for operating the air purifier.
Guidelines for safe use of the power cord and plug.
Identifies all parts of the air purifier, including filters and housing.
Explains the meaning of the icons and indicators on the LED display.
Details on On/Off and Display Off buttons.
Explains Sleep Mode, Auto Mode, Fan Speed, and Timer controls.
Describes the air quality sensor and its color-coded indicator.
Steps for turning on/off and initial fan speed.
How the purifier automatically adjusts fan speed based on air quality.
Explains quiet operation in sleep mode and setting timers.
Features like remembering settings and automatic turn-off.
Describes the function and benefits of the preliminary filter.
Details the HEPA filter's particle removal capabilities.
Explains how the carbon filter adsorbs odors and fumes.
Instructions for cleaning the outside of the unit.
How the filter indicator works and its purpose.
Guidance on cleaning the preliminary filter.
Step-by-step guide for replacing the air filters.
Guidance on when to replace the air filters.
Instructions for cleaning the dust sensor lens for accurate readings.
Procedure to reset the filter indicator after replacement.
Recommendations for storing the air purifier when not in use.
Details the warranty duration, coverage, and exclusions.
Information on how to extend the product warranty.
Procedures for handling defective products and returns.