Levoit Core 300S at a glance
In short: the Levoit Core 300S scores 8,6/10 in our air purifier review (from €127). Biggest strength: 22 dB sleep mode. Main compromise: running costs.
All specifications come from manufacturer data sheets and the Amazon catalogue and were cross-checked before publication. The rating is an editorial overall assessment based on this data; we do not trial products ourselves.
Levoit Core 300S: what works, what doesn't?
What works well
- 22 dB sleep mode: practically inaudible, display switches off completely, made for the bedroom
- Auto mode with PM2.5 sensor: adjusts itself when pollen or dust worsen the air
- Strong performance for its size: CADR 240 m³/h, up to 50 m², reserves for any small flat
- ECARF-certified & ozone-free: suitable for allergy sufferers, no ioniser side effects
- Filter variants: special filters against pet odours, mould or exhaust fumes can be retrofitted
Points of criticism
- Running costs: filter change every 6 to 8 months at €25 to €34, in the long run the biggest cost item
- 2.4 GHz Wi-Fi only: VeSync account required; 5 GHz-only networks need a 2.4 GHz band
- Level 3 audible: at full power with up to 50 dB clearly noticeable
Specifications in detail
| Type | Compact air purifier (smart) |
| CADR | 240 m³/h |
| Room size | up to 50 m² (2 air changes/h) |
| Noise level | 22 to 50 dB (sleep mode 22 dB) |
| Power | 23 W |
| Filter | 3-in-1: pre-filter + HEPA + activated carbon (99.97% down to 0.3 µm) |
| Filter change | every 6 to 8 months · replacement filter approx. €25 to €34 |
| Sensor | PM2.5 laser with colour ring + auto mode |
| Smart | VeSync app (2.4 GHz), Alexa, Google, 12 h timer |
| Dimensions / weight | 22 × 22 × 36 cm · 2.7 kg |
What does it cost to run?
At a maximum of 23 W power draw, an hour of use at 35 ct/kWh (German electricity price) costs about 1 cent. Eight hours of continuous running (e.g. overnight) therefore cost about 6 cents.
Calculation basis: 35 ct/kWh (German electricity price, 2026, rounded). Values from the manufacturer data sheet; actual costs depend on use and tariff.
Build quality & everyday use
What carries the Levoit Core 300S in everyday use: 22 dB sleep mode (practically inaudible, display switches off completely, made for the bedroom) and auto mode with PM2.5 sensor (adjusts itself when pollen or dust worsen the air). We have to be honest about the weaknesses: running costs, a filter change every 6 to 8 months at €25 to €34, in the long run the biggest cost item.
If you set the device up to save space, make sure it stands on a stable, level surface with some air around it. This protects the mechanics and electronics in continuous use.
Who is the Levoit Core 300S suited to? (buying advice)
Perfect for:
- ✓Bedrooms & flats with thin walls
- ✓Allergy sufferers (ECARF, auto mode)
- ✓Smart home users (app, Alexa, Google)
Less suitable for:
- ✕Anyone who wants minimal running costs
- ✕Rooms over 50 m²
- ✕Households without 2.4 GHz Wi-Fi
Levoit Core 300S compared with alternatives
Head-to-head with the top alternatives from our air purifiers comparison
| Feature | Levoit Core 300S | Philips 600 Series (AC0650/10) | Levoit Vital 100S |
|---|---|---|---|
| CADR | 240 m³/h | 170 m³/h | 243 m³/h |
| Room size | up to 50 m² | up to 44 m² | up to 52 m² |
| Noise level | 22 to 50 dB | 19 to 49 dB | 23 to 52 dB |
| Filter | HEPA + activated carbon | NanoProtect HEPA | 3-stage + washable |
| Power | 23 W | 12 W | 32 W |
Similar air purifier models
Frequently asked questions about the Levoit Core 300S
Which air purifier is suitable for the bedroom?
How loud is the Levoit Core 300S really?
Does the Core 300S help against pollen and house dust?
How much do replacement filters for the Core 300S cost?
Verdict: is the Levoit Core 300S worth it?
A safe choice in its class: if you can live with the running costs, from €127 you get mainly one thing: 22 dB sleep mode. It suits best: bedrooms & flats with thin walls.
If you want to compare alternatives, you will find detailed data and reviews on our air purifiers comparison page.
Buy now at the best price (UK) Buy now at the best price (US)