Levoit

Levoit Core 300S Air Purifier

The Levoit Core 300S is a compact smart air purifier designed for small rooms, featuring a 360-degree three-stage filtration system and app-based control.

### Overview

The Core 300S is an entry-level, compact air purifier that effectively replaces the older Levoit Core 300 in Levoit's lineup. It's a worthy upgrade to its predecessor, with the ability to monitor and control air quality with ease when connected to Levoit's VeSync smartphone app — including voice control. It is currently priced at $119.99 (regularly $139.99) directly from Levoit.

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### Standout Features

- **3-Stage Filtration:** Includes a pre-filter for larger particles, a True HEPA filter for fine dust and allergens, and an activated carbon layer for odours. - **AirSight Plus Sensor:** AirSight Plus technology scans the surrounding air for airborne particles, enabling Auto Mode to function with high accuracy. - **Ultra-Quiet Operation:** Patented QuietKEAP™ Technology reduces noise levels to as low as 22dB, making it one of the quieter options in its class. - **Smart App & Voice Control:** Through the VeSync app, you can control the purifier, create schedules, set timers, and activate voice control with Amazon Alexa or Google Assistant. - **VortexAir™ Technology:** Its cylindrical shape allows it to draw air from all sides, and the upward airflow helps distribute clean air evenly without creating drafts. - **Energy Efficient:** The 300S uses 42% less power than its predecessor — just 26W.

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### Who It's For

The Core 300S is designed for small to medium rooms and promises quiet operation, low running costs, and a compact footprint that suits bedrooms, home offices, and gaming setups. It is best suited for rooms up to 219 sq. ft., achieving approximately 4.8 air changes per hour in spaces of that recommended size. It's a particularly good fit for those who want smart features and prefer not to manually adjust settings — app integration even allows you to check air quality remotely.

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### Important Considerations

- **Auto Mode calibration concern:** The device categorizes 0–35 µg/m³ as "Very Good," but 35 µg/m³ is 7 times higher than the WHO annual limit — meaning Auto Mode may reduce fan speed before the air is truly clean by WHO standards. - **Room size limitations:** Its lower CADR makes it only suitable for smaller rooms — buyers with larger spaces should consider stepping up to the Core 400S or similar. - **App experience:** Some users find the VeSync app cluttered with advertisements and promotional material, making navigation less intuitive than expected. - **Filter replacement costs:** Levoit recommends replacing filters roughly every 6–8 months. Replacement filters cost around $29.99, which is reasonable, though ongoing costs are worth factoring into your budget.

Seen at 4 retailers from $49.99 to $159.99 as of 2026-06-17. Prices change — check the retailer for the current price.

A capable, quietly efficient purifier for smaller spaces, let down only by its limited room coverage.