At a Glance
Pros
- Quiet operation
- Responsive Auto Mode
- Great value
- Easy filter changes
Cons
- Not strong enough for large rooms
- No VOC sensor
Key Specifications
Category
Smart air purifier
Recommended room size
Up to ~219 sq ft (≈20 m²) for 4.8 ACH
Maximum coverage claim
Up to ~1,051–1,095 sq ft with 1 ACH per manufacturer marketing
Clean Air Delivery Rate (CADR)
≈141 CFM / 240 m³/h (combined performance class)
Filtration stages
3-stage: pre-filter, main particle filter, high-efficiency activated carbon
Filter type
Cylindrical 3-in-1 replaceable cartridge (Original / Smoke / Pet / Toxin variants available)
Particle size capture
Captures fine particles down to around 0.3 µm with high efficiency
Noise level
As low as ≈22 dB in Sleep Mode; up to higher 50–60 dB range on max (varies by tests)
Price Range: $120–$150
You'll Love This Product If...
Perfect for bedrooms, nurseries, offices, and other small-to-medium spaces.
You Might Want to Skip This If...
Not ideal for open floor plans or large living areas.
How This Product Affects Your Indoor Air Quality
Levoit’s smart firmware and quiet Sleep Mode make this model a favorite among cost-conscious buyers who want reliable IAQ improvement.
How We Tested This Product
In PM2.5 decay tests, the Core 300S performed significantly better than other purifiers under $150.
Alternatives to Consider
Alternative
Air Purifier
Winix 5500-2 Air Purifier
by Winix
4.7
Well-priced air purifier with true HEPA, washable carbon filter, and Auto mode, popular for medium to large rooms.
$160–$250
Alternative
Air Purifier
Levoit Core 600S Smart Air Purifier
by Levoit
4.7
High-capacity Levoit purifier with smart control and auto mode, designed for large rooms and open living areas.
$250–$350
Final Verdict
The Levoit Core 300S is a compact smart purifier that delivers strong PM2.5 reduction, low noise, and excellent value.