Coway Airmega 150 vs Levoit Core 300

Last updated: October 22, 2026

The Coway Airmega 150 rates 3.4 among medium rooms air purifiers; the Levoit Core 300 rates 3.1 among small rooms ones. The Levoit Core 300 costs $96.30 less ($89.99 vs $186.29).

Coway Airmega 150 vs Levoit Core 300

Prices were last checked October 22, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.

Scores side by side

These two sit in different room size classes (medium rooms and small rooms), and each is scored against the reference points for its own class, so a rating says how well each does among its own room size peers. How we rank explains each factor.

Factor weightCoway Airmega 150Levoit Core 300
Overall rating3.4/53.1/5
Value 25%45 $1.22 per cfm of smoke CADR91 $0.63 per cfm of smoke CADR
Filter cost 20%68 $49.99 a year in filters54 $59.98 a year in filters
Quiet 20%78 48.3 dB at top speed (maker rating)37 54.5 dB at top speed (maker rating)
Efficiency 15%50 efficiency not certified (neutral score used)9 2.7 cfm per watt
Auto mode 10%70 particle sensor, auto mode0 no air-quality sensor or app
Warranty 10%0 1-year warranty25 2-year warranty

Specifications

Coway Airmega 150Levoit Core 300
Performance
Smoke CADR153 cfm143 cfm
Dust CADR161 cfm153 cfm
Pollen CADR220 cfm167 cfm
PM2.5 CADR-148 cfm
CADR certified byMaker (AHAM AC-1 test)AHAM Verifide
Room size (AHAM)-222 sq ft
Coverage (maker)214 sq ft-
Noise20 to 48.3 dB24 to 54.5 dB
Efficiency
Efficiency (IEF)-2.7 cfm/W
ENERGY STARNoNo
Energy use-317 kWh/year
Power at top speed35 W56 W
Filters
FilterHEPAHEPA
Activated carbonYesYes
ReplacementAP-1019C-FP filter setCore 300 Series Original Filter
Replacement cost$49.99 every 12 months$29.99 every 6 months
Yearly filter cost$49.99/year$59.98/year
IonizerNoNo
CARB certified (ozone)YesYes
Controls and build
Air-quality sensorparticleNone
Auto modeYesNo
Wi-Fi appNoNo
Fan speeds33
Dimensions18.5 x 13.4 x 6.5 in14.2 x 8.7 x 8.7 in
Weight12.1 lb7.9 lb
Warranty1 years2 years

All air purifier comparisons →