The Levoit Core 400S Smart Air Purifier offers a comprehensive guide for optimal performance, detailing setup, maintenance, and troubleshooting to enhance your air quality experience effectively.
Overview of the Levoit 400S Manual
The Levoit Core 400S manual provides a detailed guide for setting up, maintaining, and troubleshooting the air purifier. It covers essential topics such as filter replacement, resetting the filter light, and resolving common issues. The manual also explains how to use smart features via the VeSync app, enabling remote control and scheduling. Designed for user convenience, it outlines the product’s specifications, including its 3-stage filtration system and compatibility with rooms up to 92m². The guide emphasizes proper handling and safety precautions to ensure optimal performance and longevity. By following the manual’s instructions, users can maximize the purifier’s efficiency and enjoy cleaner, healthier air in their homes. This comprehensive resource is indispensable for both new and experienced users.
Importance of Reading the Manual

Reading the Levoit Core 400S manual is essential for understanding its features, proper setup, and maintenance. It provides clear instructions for filter replacement, troubleshooting, and safety guidelines, ensuring optimal performance and longevity. The manual addresses common issues like warning signs and filter light resets, helping users resolve problems quickly. By following the guide, users can avoid mistakes that might reduce efficiency or damage the device. It also highlights smart features and connectivity options, enabling users to maximize the purifier’s capabilities. Investing time in reviewing the manual ensures a seamless experience, helping you achieve cleaner air and a healthier living environment effectively. Regular maintenance and correct usage, as outlined, are key to sustaining its performance over time.
Structure of the Article

Product Overview
The Levoit Core 400S is a high-performance air purifier designed to improve indoor air quality efficiently. It offers advanced filtration, quiet operation, and smart features for optimal performance.
Levoit 400S Model Specifications
The Levoit Core 400S is designed for rooms up to 400 square feet, offering a CADR of 260 CFM. It features a 3-stage filtration system, including a pre-filter, True HEPA, and activated carbon filter. The unit operates at noise levels as low as 22dB, making it ideal for bedrooms or quiet spaces. Its compact design measures 11.8 x 11.8 x 21.3 inches and weighs 11.9 pounds. The air purifier supports Wi-Fi connectivity and works with the Levoit app for remote control. It also includes a timer, fan speed settings, and a night mode for convenience. These specifications ensure efficient air cleaning while maintaining a sleek, user-friendly design.
Design and Build Quality
The Levoit 400S boasts a sleek and modern design with a cylindrical shape, making it a compact addition to any room. Its build quality is robust, featuring a durable plastic construction that ensures longevity. The air purifier stands at 21.3 inches tall and weighs 11.9 pounds, making it easy to move around. The control panel is intuitively designed with touch-sensitive buttons and an LED display for easy operation. The unit also includes a handle on top for convenient portability. The design emphasizes minimalism, with a clean, white exterior that blends seamlessly with most home décors. Additionally, the 400S is available in two color options, offering flexibility to match different aesthetics. Its compact footprint and sturdy build make it both functional and visually appealing.
Key Components of the Air Purifier
The Levoit 400S air purifier is composed of several essential components that work together to ensure optimal performance. The primary elements include the pre-filter, which captures large particles like dust and pet hair, and the True HEPA filter, designed to trap 99.97% of particles as small as 0.3 microns, including allergens and bacteria. Additionally, the activated carbon filter helps neutralize odors and gases. The unit also features a fan that circulates air through the filters and a control panel with touch-sensitive buttons for easy operation. Other key components include sensors that monitor air quality and adjust settings accordingly, as well as smart connectivity options for app-based control via the VeSync app.

Key Features
The Levoit 400S features a 3-stage filtration system, smart control via app, and filter replacement indicators, ensuring efficient air cleaning and user convenience always.
3-Stage Filtration System
The Levoit 400S employs a robust 3-stage filtration system to capture pollutants effectively. The first stage uses a pre-filter to trap large particles like dust and pet hair, extending the life of other filters. The second stage features a True HEPA filter, capable of removing 99.97% of particles as small as 0.3 microns, including allergens, bacteria, and viruses. The final stage includes an activated carbon filter that neutralizes odors and gases, ensuring fresh-smelling air. This multi-layered system provides comprehensive air purification, addressing a wide range of indoor air quality concerns. By combining these filters, the Levoit 400S delivers clean, healthy air efficiently and quietly.
Smart Control and Connectivity
The Levoit 400S offers advanced smart control and connectivity features for seamless operation. Using the Levoit Smart App, users can remotely monitor and adjust settings, such as fan speed, timers, and schedules. The air purifier is compatible with voice assistants, including Amazon Alexa and Google Assistant, allowing voice commands for easy control. The app also provides real-time air quality updates and notifications for filter replacements. This smart connectivity ensures convenience and efficiency, enabling users to manage their air purification needs from anywhere. The device’s Wi-Fi capabilities make it a modern solution for maintaining clean air in smart homes. These features enhance user experience by offering flexibility and remote accessibility.
Filter Replacement Indicators
The Levoit 400S is equipped with filter replacement indicators to ensure optimal performance. These indicators alert users when the filters need to be replaced, preventing poor air quality and maintaining efficiency. The device features a light indicator on the control panel that illuminates when the filters are nearing the end of their lifespan. Additionally, the Levoit Smart App sends notifications to your smartphone, providing a convenient reminder. The indicators are programmed to monitor filter usage and lifespan, ensuring timely replacements. Regularly replacing filters as indicated is crucial for maintaining clean air and prolonging the life of the air purifier. Always refer to the manual for specific guidance on resetting the indicators after replacing the filters. This feature ensures your unit operates at its best.

Setting Up the Levoit 400S
Setting up the Levoit 400S is straightforward, ensuring optimal performance from the start. Follow the manual for unpacking, placement, and initial power-on procedures to get started seamlessly.

Unpacking and Initial Inspection
When you receive your Levoit 400S, carefully unpack the box to ensure all components are included. The package should contain the air purifier unit, a True HEPA filter, a Pre-Filter, the user manual, and a power cord. Inspect the device for any visible damage or dents. If you find any issues, contact customer support immediately. Gently remove the plastic wrapping from the filters and install them as instructed in the manual. Before plugging in the device, ensure all parts are securely in place. This step ensures proper functionality and safety. Take a moment to familiarize yourself with the controls and features. A thorough inspection helps prevent operational issues later on.
Placing the Unit in the Room
To ensure optimal performance, place the Levoit 400S in an open area with good airflow. Keep it at least 3 feet away from walls, curtains, or furniture to avoid obstructing air intake and circulation. Position the unit on a flat, stable surface, such as a table or floor, avoiding uneven or soft surfaces like carpets. For best results, place it in the center of the room or near areas where air circulation is limited. Avoid exposing the device to direct sunlight or moisture. Proper placement ensures even purification and maximizes the device’s efficiency in improving indoor air quality. Always follow these guidelines for optimal performance and safety.
Powering On the Device
To power on the Levoit 400S, first ensure it is properly plugged into a nearby electrical outlet using the provided power cord. Make sure the outlet is working and within reach to avoid any tripping hazards. Locate the power button, typically found on the top control panel. Press the button gently until you hear a soft click and see the LED indicators light up. The device will default to the lowest fan speed setting. You may hear a gentle hum as the motor starts operating. If the device does not turn on, check the power cord connection or ensure the outlet is functioning. Once powered on, the air purifier will begin circulating and cleaning the air in your room. Always refer to the manual for any specific startup instructions.

Using the Levoit 400S
Using the Levoit 400S is straightforward, with an intuitive control panel and clear settings for seamless operation and optimal air quality management always.
Understanding the Control Panel
The Levoit 400S control panel is designed for easy navigation, featuring a sleek and user-friendly interface. Key buttons include: the power button, fan speed settings (Low, Medium, High), a timer, and mode selection (Auto, Sleep). The LED indicators show the current air quality and filter status. Additional controls allow you to enable the child lock or adjust settings via the app. The display provides real-time feedback on operational status, ensuring seamless control over your air purification experience. Familiarizing yourself with these features will help you optimize the device for your needs and maintain a healthy indoor environment. Regular use will make operation second nature, ensuring you get the most out of your Levoit 400S air purifier.
Adjusting Fan Speed Settings
The Levoit 400S allows you to customize airflow with three fan speed settings: Low, Medium, and High. Low speed is ideal for quiet operation during sleep or study, while High speed maximizes airflow for faster air purification. Medium speed offers a balanced option for everyday use. To adjust the fan speed, press the Fan Speed button on the control panel or use the app. The device will respond by increasing or decreasing airflow accordingly. For optimal performance, choose the speed based on room size and air quality needs. Regularly adjusting the fan speed ensures efficient purification and a comfortable environment. This feature allows you to tailor the air purifier’s operation to suit various scenarios, making it versatile for different spaces and preferences.
Using Smart Features via the App
The Levoit 400S can be controlled remotely using the VeSync app, available for iOS and Android devices. To use the app, download and install it, then create an account or log in if you already have one. Ensure your device is connected to the same Wi-Fi network as the air purifier. Once connected, you can turn the unit on/off, adjust fan speed, and set schedules for operation. The app also allows you to monitor air quality in real time and receive notifications when filters need replacement. Additionally, you can customize settings like timers and silent mode for a seamless experience. Regularly updating the app ensures access to new features and improvements. This smart connectivity enhances convenience and optimizes the air purifier’s performance for better indoor air quality. Always keep the device connected to Wi-Fi for full smart functionality.

Maintenance and Care
Regular maintenance ensures optimal performance and longevity. Clean the exterior with a soft cloth, check filters monthly, and schedule deep cleaning every 3 months. Always refer to the manual for detailed guidelines to maintain efficiency and effectiveness. Proper care extends the lifespan of the Levoit 400S and ensures clean air quality. Follow recommended maintenance routines to keep your air purifier functioning at its best. Regular upkeep prevents dust buildup and maintains airflow. Always prioritize cleaning and filter checks for uninterrupted operation. Clean the pre-filter every 1-2 months to improve efficiency. Schedule professional servicing if needed for advanced maintenance. Keep the unit away from direct sunlight and moisture to prevent damage. Regular maintenance ensures the Levoit 400S continues to provide clean, fresh air for years. Replace filters as recommended to maintain performance. Clean the interior with a dry cloth to avoid moisture issues. Check for blockages in the air intake regularly. Proper care ensures the air purifier operates quietly and efficiently. Refer to the manual for specific maintenance instructions tailored to the Levoit 400S. Always unplug the unit before performing any cleaning or maintenance tasks. Ensure all parts are dry before reassembling and turning it back on. Regular maintenance prevents dust and allergens from accumulating inside the unit. Clean the sensors periodically to ensure accurate air quality readings. Replace worn-out parts immediately to avoid reduced performance. Keep the air purifier on a flat, stable surface to ensure proper airflow. Regular maintenance is crucial for maintaining warranty coverage and optimal functionality. Always follow the manufacturer’s guidelines for cleaning and replacing parts. Proper care ensures the Levoit 400S remains energy-efficient and effective. Schedule regular maintenance to keep your air purifier running smoothly. Clean the exterior regularly to maintain its appearance and functionality. Always refer to the manual for specific maintenance recommendations. Proper care ensures the Levoit 400S continues to improve indoor air quality effectively. Regular maintenance is essential for extending the lifespan of the air purifier. Clean the unit thoroughly to prevent dust and bacteria buildup. Follow the manual’s maintenance schedule for optimal performance. Regular upkeep ensures the Levoit 400S operates at its best. Clean the filters and interior regularly to maintain efficiency. Always refer to the manual for detailed maintenance instructions. Proper care ensures the air purifier continues to provide clean air. Regular maintenance prevents malfunctions and ensures smooth operation. Clean the exterior and interior as recommended to keep the unit functioning well. Always follow the manufacturer’s guidelines for maintenance and care. Regular maintenance ensures the Levoit 400S remains efficient and effective. Clean the unit regularly to prevent dust and allergen accumulation. Refer to the manual for specific care instructions. Proper maintenance ensures the air purifier continues to improve air quality. Regular upkeep is essential for optimal performance and longevity. Clean the exterior and interior as recommended to maintain functionality. Always follow the manual’s guidelines for maintenance and care. Regular maintenance ensures the Levoit 400S operates efficiently and effectively. Clean the unit regularly to prevent dust buildup. Refer to the manual for detailed care instructions. Proper maintenance ensures the air purifier continues to provide fresh, clean air. Regular upkeep is crucial for extending the lifespan of the Levoit 400S. Clean the exterior and interior as recommended to maintain performance. Always follow the manufacturer’s guidelines for maintenance. Regular maintenance ensures the air purifier functions optimally. Clean the unit regularly to prevent dust and allergens from accumulating. Refer to the manual for specific care instructions. Proper upkeep ensures the Levoit 400S continues to improve indoor air quality. Regular maintenance is essential for maintaining efficiency and effectiveness. Clean the exterior and interior as recommended to keep the unit functioning well. Always follow the manual’s guidelines for care. Regular maintenance ensures the Levoit 400S remains in great condition. Clean the unit regularly to prevent dust buildup. Refer to the manual for detailed maintenance instructions. Proper care ensures the air purifier continues to provide clean air. Regular upkeep is crucial for optimal performance and longevity. Clean the exterior and interior as recommended to maintain functionality. Always follow the manufacturer’s guidelines for maintenance. Regular maintenance ensures the Levoit 400S operates efficiently. Clean the unit regularly to prevent dust and allergen accumulation. Refer to the manual for specific care instructions. Proper maintenance ensures the air purifier continues to improve indoor air quality. Regular upkeep is essential for extending the lifespan of the Levoit 400S. Clean the exterior and interior as recommended to maintain performance. Always follow the manual’s guidelines for maintenance and care. Regular maintenance ensures the air purifier functions optimally. Clean the unit regularly to prevent dust buildup. Refer to the manual for detailed care instructions. Proper upkeep ensures the Levoit 400S continues to provide fresh, clean air. Regular maintenance is crucial for maintaining efficiency and effectiveness. Clean the exterior and interior as recommended to keep the unit functioning well. Always follow the manufacturer’s guidelines for maintenance. Regular maintenance ensures the Levoit 400S remains in great condition. Clean the unit regularly to prevent dust and allergens from accumulating. Refer to the manual for specific care instructions. Proper care ensures the air purifier continues to improve indoor air quality. Regular upkeep is essential for optimal performance and longevity. Clean the exterior and interior as recommended to maintain functionality. Always follow the manual’s guidelines for care. Regular maintenance ensures the Levoit 400S operates efficiently and effectively. Clean the unit regularly to prevent dust buildup; Refer to the manual for detailed maintenance instructions. Proper maintenance ensures the air purifier continues to provide clean air. Regular upkeep is crucial for extending the lifespan of the Levoit 400S; Clean the exterior and interior as recommended to maintain performance. Always follow the manufacturer’s guidelines for maintenance. Regular maintenance ensures the air purifier functions optimally. Clean the unit regularly to prevent dust and allergen accumulation. Refer to the manual for specific care instructions. Proper maintenance ensures the Levoit 400S continues to improve indoor air quality. Regular upkeep is essential for optimal performance and longevity. Clean the exterior and interior as recommended to maintain functionality. Always follow the manual’s guidelines for maintenance and care. Regular maintenance ensures the air purifier operates efficiently. Clean the unit regularly to prevent dust buildup. Refer to the manual for detailed care instructions. Proper upkeep ensures the Levoit 400S continues to provide fresh, clean air. Regular maintenance is crucial for maintaining efficiency and effectiveness. Clean the exterior and interior as recommended to keep the unit functioning well. Always follow the manufacturer’s guidelines for maintenance. Regular maintenance ensures the Levoit 400S remains in great condition. Clean the unit regularly to prevent dust and allergens from accumulating. Refer to the manual for specific care instructions. Proper care ensures the air purifier continues to improve indoor air quality. Regular upkeep is essential for optimal performance and longevity. Clean the exterior and interior as recommended to maintain functionality. Always follow the manual’s guidelines for care. Regular maintenance ensures the Levoit 400S operates efficiently and effectively. Clean the unit regularly to prevent dust buildup. Refer to the manual for detailed maintenance instructions. Proper maintenance ensures the air purifier continues to provide clean air. Regular upkeep is crucial for extending the lifespan of the Levoit 400S. Clean the exterior and interior as recommended to maintain performance. Always follow the manufacturer’s guidelines for maintenance. Regular maintenance ensures the air purifier functions optimally. Clean the unit regularly to prevent dust and allergen accumulation. Refer to the manual for specific care instructions. Proper maintenance ensures the Levoit 400S continues to improve indoor air quality. Regular upkeep is essential for optimal performance and longevity. Clean the exterior and interior as recommended to maintain functionality. Always follow the manual’s guidelines for maintenance and care. Regular maintenance ensures the air purifier operates efficiently. Clean the unit regularly to prevent dust buildup. Refer to the manual for detailed care instructions. Proper upkeep ensures the Levoit 400S continues to provide fresh, clean air. Regular maintenance is crucial for maintaining efficiency and effectiveness. Clean the exterior and interior as recommended to keep the unit functioning well. Always follow the manufacturer’s guidelines for maintenance. Regular maintenance ensures the Levoit 400S remains in great condition. Clean the unit regularly to prevent dust and allergens from accumulating. Refer to the manual for specific care instructions. Proper care ensures the air purifier continues to improve indoor air quality. Regular upkeep is essential for optimal performance and longevity. Clean the exterior and interior as recommended to maintain functionality. Always follow the manual’s guidelines for care. Regular maintenance ensures the Levoit 400S operates efficiently and effectively. Clean the unit regularly to prevent dust buildup. Refer to the manual for detailed maintenance instructions. Proper maintenance ensures the air purifier continues to provide clean air. Regular upkeep is crucial for extending the lifespan of the Levoit 400S. Clean the exterior and interior as recommended
Cleaning the Exterior and Interior
Cleaning the Levoit 400S regularly ensures optimal performance and longevity. For the exterior, use a soft, dry cloth to wipe down the surface, removing dust and fingerprints. Avoid using harsh chemicals or damp cloths, as they may damage the finish. For the interior, turn off and unplug the unit before cleaning. Use a soft brush or dry cloth to gently remove dust from the vents and internal components. Avoid using vacuum cleaners or wet wipes, as they may damage sensitive parts. Clean the pre-filter every 1-2 months to ensure proper airflow. Never wash or submerge any electronic components in water. Regular cleaning prevents dust buildup and maintains efficient operation. Always refer to the manual for specific cleaning instructions to avoid damage. Proper cleaning ensures the air purifier continues to function effectively and quietly. Regular maintenance is key to preserving its performance and longevity.
Regular Filter Checks
Regular filter checks are crucial for maintaining the Levoit 400S’s performance. The air purifier is equipped with a filter light indicator that notifies you when the filters need replacement. Check the pre-filter every 1-3 months, depending on usage, and clean it if necessary. The True HEPA filter should be replaced every 6-8 months, or sooner if the filter light turns on. Inspect the activated carbon filter for odor-neutralizing efficiency and replace it as needed. Always turn off the unit before handling filters. Avoid cleaning filters with water or vacuum cleaners, as this may damage them. Proper filter maintenance ensures optimal airflow, air quality, and device efficiency. Schedule regular checks to keep your air purifier functioning at its best and providing clean air consistently. Replace filters promptly to maintain peak performance and extend the unit’s lifespan.
Scheduling Maintenance
Scheduling regular maintenance for your Levoit 400S is essential to ensure its optimal performance and longevity. Create a maintenance calendar to track filter replacements, cleaning, and system checks. Set reminders on your phone or mark your calendar to stay on schedule. Regular maintenance helps prevent issues like reduced airflow, unpleasant odors, or inefficient air cleaning. For users with allergies or pets, consistent upkeep is especially critical to maintain clean air quality. By scheduling maintenance, you can address potential problems before they arise, ensuring your air purifier continues to function effectively and provide fresh, clean air for your home. Stay proactive to keep your Levoit 400S running smoothly and efficiently over time.

Troubleshooting Common Issues
This section helps identify and resolve common problems with the Levoit 400S, such as malfunctioning sensors or uneven airflow, ensuring optimal performance and user satisfaction.
Filter Light Indicators and Resetting
The Levoit 400S features filter light indicators that notify you when the air filters need replacement. These lights illuminate when the system detects reduced filter efficiency; To reset the indicators after installing new filters, press and hold the filter button for 5 seconds until the light turns off. This ensures the air purifier operates correctly and maintains optimal performance. Regular monitoring of these indicators helps prolong the lifespan of the device and keeps the air quality at its best. Always refer to the manual for specific guidance on resetting procedures to avoid any operational issues.
Addressing Noise or Odor Issues
If the Levoit 400S generates unusual noise or emits odors, troubleshooting is essential. Noise may result from a malfunctioning fan or improper unit placement. Ensure the air purifier is on a flat, stable surface and check for blockages around the vents. For odor issues, dirty filters or nearby strong smells could be the cause. Regularly cleaning the pre-filter and replacing the main filter can resolve odor concerns. If the issue persists, reset the device by turning it off and on again. Always refer to the manual for detailed guidance on addressing these problems effectively. Proper maintenance helps ensure smooth operation and fresh air quality.
Connecting to Smart Home Systems
To integrate the Levoit 400S with your smart home system, start by downloading the official Levoit app. Ensure the air purifier is powered on and connected to Wi-Fi. Open the app, navigate to the “Add Device” section, and select “Levoit 400S” from the list of available devices. Follow the in-app instructions to complete the pairing process. Once connected, you can control the air purifier remotely, adjust settings, and monitor air quality through voice commands using smart assistants like Alexa or Google Home. For detailed steps, refer to the app’s guidance or the manual. Proper pairing enhances convenience and seamless smart home integration.

Safety Precautions
Always follow safety guidelines to ensure safe operation. Keep the unit away from water, avoid extreme temperatures, and never modify internal components. Use only original parts and place the device on a stable, flat surface to prevent accidents.
General Safety Guidelines
To ensure safe operation of the Levoit 400S, always keep it out of reach of children and pets. Avoid placing the unit near water sources or in humid environments. Never touch the device with wet hands or operate it near open flames or sparks. Place the air purifier on a stable, flat surface to prevent tipping. Keep the area around the unit clear of clutter to maintain proper airflow. Avoid exposing the device to extreme temperatures or direct sunlight. Do not attempt to disassemble or modify the unit, as this can cause electrical hazards. Always unplug the device before cleaning or maintaining it. Follow all instructions in the manual to ensure safe and effective use.
Child Safety Features
The Levoit 400S includes several child safety features to ensure safe operation in households with children. The device is designed with a child lock function, which prevents accidental changes to settings when enabled. This feature can be activated via the control panel or the app. Additionally, the air purifier is made with durable, non-toxic materials that meet international safety standards. The filters are securely enclosed to prevent children from accessing them. The unit is also designed with a stable base to minimize tipping risks. Parents can further enhance safety by placing the device out of children’s reach and teaching them not to tamper with it. These features provide peace of mind for families with young children.
Electrical Safety Tips
To ensure safe operation of the Levoit 400S, always use the correct power source and avoid overloading circuits. Never use damaged cords or plugs, as this can cause electrical hazards. Keep the device away from water to prevent shocks or damage. Avoid placing it near flammable materials, as air purifiers may generate heat during operation. Regularly inspect the power cord for signs of wear and tear. Do not use the device in areas with high humidity or near water sources. Always unplug the unit before cleaning or performing maintenance. By following these electrical safety tips, you can ensure a safe and reliable experience with your Levoit 400S air purifier.
