GermGuardian AC4825E
#6 in Small roomsFull review
A cheap, slim tower purifier for a small bedroom or office.
Amazon $80.74$80.74
The GermGuardian AC4825E and the Levoit Core 200S are evenly matched, rated 3.2 and 3.1. The GermGuardian AC4825E leads on warranty and efficiency. The Levoit Core 200S wins on auto mode. The Levoit Core 200S costs $10.76 less ($69.98 vs $80.74).
Levoit Core 200S
#7 in Small roomsFull review
A cheap smart purifier for a small bedroom or office. Choose something bigger for a living room.
Amazon $69.98$69.98
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.
Which should you buy?
- Choose the GermGuardian AC4825E for warranty (3-year warranty vs 2-year warranty) and efficiency (3.5 cfm per watt vs 2.2 cfm per watt).
- Choose the Levoit Core 200S for auto mode (Wi-Fi app, no air-quality sensor vs no air-quality sensor or app).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every small rooms air purifier; a clear win is highlighted. How we rank explains each one.
| Factor weight | GermGuardian AC4825E | Levoit Core 200S |
|---|---|---|
| Overall rating | 3.2/5 | 3.1/5 |
| Value 25% | 79 $0.82 per cfm of smoke CADR | 81 $0.78 per cfm of smoke CADR |
| Filter cost 20% | 50 filter price or life not published (neutral score used) | 52 $39.14 a year in filters |
| Quiet 20% | 50 noise at top speed not published (neutral score used) | 50 noise at top speed not published (neutral score used) |
| Efficiency 15% | 19 3.5 cfm per watt | 3 2.2 cfm per watt |
| Auto mode 10% | 0 no air-quality sensor or app | 30 Wi-Fi app, no air-quality sensor |
| Warranty 10% | 50 3-year warranty | 25 2-year warranty |
Independent measurements
GermGuardian AC4825E
| Tested by | CADR | Noise | Conditions |
|---|---|---|---|
| HouseFresh | - | 55.6 dB | dB at 3 ft: 40 / 44.8 / 51.6 / 55.6 by speed; took 104 min to clear its test room |
Levoit Core 200S
No independent test published yet.
Specifications
| GermGuardian AC4825E | Levoit Core 200S | |
|---|---|---|
| Performance | ||
| Smoke CADR | 99 cfm | 90 cfm |
| Dust CADR | 116 cfm | 101 cfm |
| Pollen CADR | 129 cfm | 119 cfm |
| PM2.5 CADR | 111 cfm | 95 cfm |
| CADR certified by | AHAM Verifide | AHAM Verifide |
| Room size (AHAM) | 153 sq ft | 140 sq ft |
| Coverage (maker) | 743 sq ft | - |
| Noise | - | 27 dB |
| Efficiency | ||
| Efficiency (IEF) | 3.5 cfm/W | 2.2 cfm/W |
| ENERGY STAR | No | No |
| Energy use | 182 kWh/year | 252 kWh/year |
| Power at top speed | - | 45 W |
| Filters | ||
| Filter | HEPA with carbon pre-filter, optional UV-C bulb | HEPA |
| Activated carbon | Yes | Yes |
| Replacement | FLT4825 (Filter B) | Core 200S-P 3-stage replacement filter |
| Replacement cost | $19.88 | $19.57 every 6 months |
| Yearly filter cost | - | $39.14/year |
| Ionizer | - | No |
| CARB certified (ozone) | Yes | Yes |
| Controls and build | ||
| Air-quality sensor | None | None |
| Auto mode | No | No |
| Wi-Fi app | No | Yes |
| Fan speeds | 3 | 3 |
| Dimensions | 22 x 10.25 x 6.75 in | 12.6 x 8.1 x 8.1 in |
| Weight | 8.6 lb | 6.6 lb |
| Warranty | 3 years | 2 years |