Air Purifier Ranking

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GermGuardian AC4825 vs Honeywell HPA100

Both are compact air purifiers. GermGuardian AC4825 scores 2.5 to 2.5 on our formula. It's also the cheaper of the two, which makes this an easy call.

GermGuardian AC4825
Higher score

GermGuardian AC4825

2.5
Value Quietness Filter cost

Honeywell HPA100

2.5
Value Quietness Filter cost

Rating by rating

RatingGermGuardian AC4825Honeywell HPA100
Overall2.5 2.5
Value3.0 1.0
Energy efficiency0.5 0.5
Quietness0.5 0.5
Filter cost0.5 3.5
Certified CADR5.0 5.0
Features0.5 0.5
Tested performance3.5 3.5

Spec by spec

SpecGermGuardian AC4825Honeywell HPA100
Price (USD)80100
$ per CADR0.81.0
Smoke CADR100100
Dust CADR118106
Pollen CADR125100
AHAM room size (sq ft)155155
Max power (W)5550
CADR per watt1.82.0
Noise low (dB)3030
Noise high (dB)5555
Filter cost per year$60$35
5-year cost$380$275
Carbon (lb)0.10.2
True HEPAYesYes
Auto modeNoNo
AppNoNo
AHAM VerifideYesYes
Energy StarYesYes

Green marks the better figure in each row. Prices are approximate street prices.