# Levoit Core 300S Smart HEPA Air Purifier, CADR 258 m3/h, PM2.5 Sensor

Source: https://www.ranked10.co.uk/home/best-air-purifier/levoit-core-300s-air-purifier
Ranked #2 in "Best Air Purifier 2026: 10 Ranked on Real Air Changes": https://www.ranked10.co.uk/home/best-air-purifier

- Price: £149.99 (checked on Amazon UK on 2026-09-10)
- Amazon rating: 4.6 from 23,251 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B0FDWK7YL2?tag=ranked10-21

The Core 300S is one of two Levoit models in this ranking, and the difference between them is room size rather than features: the listing quotes a CADR of 258 cubic metres per hour for this one, with a laser air quality sensor, HEPA filtration to a 0.03 micrometre particle retention size, a 24 decibel noise figure and 39 watts of draw, at 3 kilograms and 22 by 22 by 36 centimetres.

A laser PM2.5 sensor is what allows the auto mode to react to what is actually in the air rather than to a timer, which is the reason to pick a smart purifier over a dumb one. At the time of collection it carried 23,251 ratings at 4.6 stars. Note that Amazon pools the ratings for the two Levoit models here, so both show the same count. Everything here comes from the Amazon listing rather than our own testing.

## Specification

| Field | Value |
|---|---|
| Power Source | Corded Electric |
| Control Method | Voice |
| Filter Type | HEPA |
| Floor Area | 1162 Square Feet |
| Noise Level | 24 Decibels |
| Particle Retention Size | 0.03 Micron |
| Controller Type | Amazon Alexa, Button Control, Google Assistant |
| Wattage | 39 watts |
| Contaminant Filtration Capability | Pollen, Dust, Odour, Smoke |
| Special Features | Laser Air Quality Sensor |
| Filter Class | HEPA |
| Item Dimensions D x W x H | 22D x 22W x 36H centimetres |
| Item Weight | 3 kg |
| Specification Met | CE Certified, ECARF Certified, RoHS Certified |
| Brand Name | Levoit |
| Model Number | Core 300S |
| UPC | 810123677009 |
| Number of Packs | 1 |
| Item Highlight | Laser sensor with Auto Mode, App control, For allergy & pet homes, remove 99.97% Pollen/Dust/Odour |
| Unit Count | 1.0 count |

## Questions people ask

**What CADR is listed?**

258 cubic metres per hour.

**What sensor does it have?**

A laser air quality sensor for PM2.5.

**What is the particle retention size?**

0.03 micrometres.

**What smart assistants are named?**

Amazon Alexa and Google Assistant.

**How many ratings does it have?**

23,251 at the time of collection, averaging 4.6 stars.