Levoit VeSync Core Pro 400S

The Levoit VeSync Core Pro 400S PlasmaPro Smart Air Purifier (Model: LAP-C401S-WUSR) is a smart air purification device designed for household use. It features a 3-stage filtration system, an optional PlasmaPro™ function, and smart connectivity via the VeSync app, allowing for remote control and access to additional features.

Function Description:

The air purifier's primary function is to clean indoor air by removing various pollutants. It utilizes a multi-stage filtration process to capture particles and adsorb odors. The optional PlasmaPro™ technology generates positive and negative ions to bind with and neutralize pollutants, breaking down their molecular structure. This helps neutralize particulate matter, odorous gases, aerosols, and volatile organic compounds (VOCs). The device is designed to operate quietly, especially in Sleep Mode, and can automatically adjust fan speed based on detected air quality in Auto Mode. It also includes a timer function for scheduled operation and a display lock to prevent accidental setting changes.

Important Technical Specifications:

Power Supply: AC 120V, 60Hz
Rated Power: 38W
Ideal Room Size:
- 403 ft² / 37 m² (based on 5 air changes per hour - ACH)
- 990 ft² / 92 m² (based on 2 air changes per hour - ACH)
CADR (CFM): 260 CFM / 442 m³/h
Operating Conditions:
- Temperature: 14°–104°F / -10°–40°C
- Humidity: < 85% RH
Noise Level: 24–52dB
Dimensions: 10.8 x 10.8 x 20.5 in / 27.4 x 27.4 x 52 cm
Weight: 11 lb / 5 kg
Filtration System: True HEPA 3-Stage Original Filter (Pre-Installed)
- Pre-Filter: Captures large particles like dust, lint, fibers, hair, and pet fur.
- H13 True HEPA Filter: Captures at least 99.97% of airborne particles 0.3 microns (µm) in size, including fine dust, smoke, pollen, and pet dander.
- Custom High-Efficiency Activated Carbon Filter: Adsorbs smoke, odors, and fumes. Features Levoit's exclusive ARC Formula™ for enhanced effectiveness against cooking smells and pet odors, and to extend filter life by chemically decomposing trapped molecules. Filters compounds such as formaldehyde, benzene, ammonia, hydrogen sulfide, and VOCs.
Smart Features: Wi-Fi® connectivity, compatible with VeSync app, Amazon Alexa, and Google Assistant™.
Sensor: AirSight Plus™ Laser Dust Sensor for detecting PM2.5 particles and adjusting fan speed in Auto Mode.

Usage Features:

On/Off Button: Powers the unit on/off. Press and hold to configure for VeSync app or reset Wi-Fi.
Fan Speed Button: Cycles through low, medium, high, and turbo fan speeds (1-4 indicators). Tapping in Auto or Sleep Mode exits that mode.
Sleep Mode Button: Turns Sleep Mode on/off for quiet operation. Display turns off after 3 seconds. Plasma function is unavailable in Sleep Mode.
Air Quality Indicator Rings: Display real-time air quality using color codes: Blue (Very Good), Green (Good), Orange (Moderate), Red (Bad).
Plasma Button: Activates/deactivates the PlasmaPro™ function.
Timer Button: Sets an operating timer from 1-12 hours in 1-hour increments. Press and hold for 2 seconds to cycle automatically.
Auto Mode Button: Turns Auto Mode on/off, which automatically adjusts fan speed based on air quality detected by the AirSight Plus™ Laser Dust Sensor.
PM2.5/Timer Display: Shows the PM2.5 value (µg/m³) or remaining timer duration.
Display Off Button: Turns off all display lights (except Check Filter Indicator). Tap any button (except On/Off) to temporarily turn it back on.
Display Lock Button: Prevents accidental changes to settings. Press and hold for 3 seconds to activate/deactivate. The indicator blinks when locked.
Memory Function: Remembers previous fan speed, Sleep Mode, Auto Mode, Display Lock, Display Off, and Plasma settings when plugged in and turned off. Unplugging only remembers fan speed, Sleep Mode, and Auto Mode. Timer settings are not automatically resumed.
VeSync App Functions: Remote control, real-time PM2.5 updates, air quality history, additional Auto Modes (Quiet Auto Mode, Efficient Auto Mode), customizable schedules, and filter life monitoring.
Voice Assistant Compatibility: Connects with Amazon Alexa and Google Assistant™ via the VeSync app.

Maintenance Features:

Check Filter Indicator: Lights up red as a reminder to check the filter, typically around 12 months of use. Can be reset by pressing and holding the Sleep Mode button for 3 seconds.
Filter Cleaning: The outer pre-filter should be cleaned every 2-4 weeks using a soft brush or vacuum hose to remove hair, dust, and large particles. The True HEPA & Activated Carbon Filter should not be cleaned with water or other liquids.
Filter Replacement: The filter should be replaced every 12 months, or sooner depending on usage and pollution levels. Only official Levoit filters should be used.
Air Purifier Cleaning: Unplug before cleaning. Wipe the outside with a soft, dry, or damp cloth. Vacuum the inside. Do not use abrasive chemicals or flammable cleaning agents.
AirSight Plus™ Laser Dust Sensor Cleaning: Clean the sensor every 3 months, or more often in dusty environments, by placing a vacuum cleaner hose over the sensor openings for at least 10 seconds.
Storage: If storing for an extended period, wrap the air purifier and filter in plastic packaging and store in a dry place to prevent moisture damage.