Levoit Core 400S (White, 166m²)

What room size does the Core 400S effectively cover?

The Core 400S is designed for rooms up to 166m² in closed single-room environments. It can clean a 166m² room once per hour or smaller 83m² rooms twice per hour. For open-concept spaces larger than 166m², effectiveness may be reduced. The unit works best in rooms with doors that can be closed to contain the cleaned air.

How often should I replace the filter and what does it cost?

Levoit recommends replacing the filter every 12 months under normal usage conditions. The replacement filter model is "Core 400S-RF". Filter life depends on air quality, usage hours and local pollution levels. The app monitors filter condition and sends notifications when replacement is needed. Heavy pollution environments may require more frequent changes.

Can I control this air purifier when I'm not at home?

Yes, the VeSync app provides full remote control from anywhere with internet connection. You can turn the unit on/off, change fan speeds, set schedules, monitor air quality and check filter status. The app works on both iOS and Android devices. Alexa voice control is also supported for hands-free operation when you're at home.

How quiet is the Core 400S during night-time use?

In sleep mode, the Core 400S operates at less than 24dB, which is quieter than a whisper. The display automatically dims and fan speed reduces to minimum levels whilst maintaining air purification. Many users report they need to check the display to confirm the unit is running because it's so quiet during overnight operation.

What types of pollutants does the HEPA H13 filter remove?

The three-stage filter system removes 99.97% of particles 0.3 microns and larger. This includes dust, pollen, pet dander, hair, lint, smoke particles, bacteria and some viruses. The activated carbon layer also neutralises household odours, cooking smells and volatile organic compounds (VOCs). It's particularly effective for allergy sufferers and pet owners.

Does the auto mode really work effectively?

The AirSight Plus laser sensor continuously monitors PM2.5 particle levels and adjusts fan speed automatically. When cooking, cleaning or other activities increase pollution, the sensor detects changes within seconds and ramps up power accordingly. Once air quality improves, it returns to lower speeds to save energy whilst maintaining clean air.

Is assembly required and what's included in the box?

No assembly is required - the Core 400S comes ready to use straight from the box. Included components are the air purifier unit with pre-installed filter, power adapter with UK plug, quick start guide and full user manual. Simply remove packaging, plug in and download the VeSync app to begin operation.

What warranty and customer support does Levoit provide?

Levoit offers a 2-year manufacturer warranty covering defects and malfunctions. Lifetime customer service support is available through their UK team. The unit is CE and RoHS certified for safety and environmental compliance. Customer reviews consistently praise Levoit's responsive support team for technical assistance and warranty claims.