Levoit Core 300S Review: The Smart Air Purifier Singapore Actually Needs

Why We’re Reviewing This

With Singapore’s periodic haze seasons, urban pollution, and year-round air conditioning (which recirculates indoor air without filtering it), a quality air purifier isn’t a luxury — it’s a necessity. The Levoit Core 300S has become the go-to recommendation in Singapore, and after months of use, we understand why.

Filtration Performance

The 3-stage filtration system is the foundation of the Core 300S:

1. Pre-filter — captures large particles like hair and dust
2. True HEPA H13 filter — removes 99.97% of particles as small as 0.3 microns
3. Activated carbon filter — absorbs odours, smoke, and VOCs

During haze season, this combination is genuinely effective. The built-in laser sensor provides real-time PM2.5 readings through the VeSync app, and you can watch the numbers drop in real-time after switching the purifier on.

Smart Features

The “S” in Core 300S stands for Smart, and it delivers. Via the VeSync app or voice assistants (Alexa, Google Home), you can:

• Set automated schedules based on time or air quality thresholds
• Monitor air quality history and trends
• Adjust fan speed and activate sleep mode remotely
• Create automation routines with other smart home devices

The auto mode is particularly useful — the purifier adjusts its fan speed based on real-time air quality readings, ramping up when it detects elevated PM2.5 levels and scaling back when the air is clean.

Noise and Energy

At its lowest setting, the Core 300S produces just 24dB — quieter than a whisper. Even at maximum speed, it’s a manageable hum that fades into background noise. For bedrooms and home offices, the noise profile is exemplary.

Energy consumption is modest: approximately 45W at maximum speed, translating to negligible electricity costs even with 24/7 operation. Given Singapore’s electricity prices, you’re looking at roughly $8-10 per month for continuous operation.

Coverage and Placement

Levoit rates the Core 300S for rooms up to 538 sq ft (50 sq m), which comfortably covers a master bedroom, living room, or open-plan living-dining area in most Singapore homes. For larger spaces, you’d want two units or the larger Core 400S.

The Verdict

The Levoit Core 300S hits a sweet spot that’s difficult to fault: effective HEPA filtration, genuine smart home integration, whisper-quiet operation, and a reasonable price point. At $215 from the official Shopee Mall store with 3k+ units sold, it’s the most sensible air purifier purchase for Singapore households.

The only ongoing cost is filter replacements every 6-8 months, which is standard across all HEPA purifiers. For the peace of mind of breathing clean air — especially during haze season — the Core 300S is our top recommendation.