Best Air Purifiers Under $100
7 match, ranked by overall score. Updated October 18, 2026.
1
Levoit Core 200S 4.1
$80
#1 in Compact (under 130 CADR) · 118 smoke CADR · ~183 sq ft · 46 dB max · 6.6 lb
Smallest Levoit with app control; no particle sensor.
$0.68 per CADR$38/yr filtersAHAM VerifideEnergy Star
Spec-based
2
Levoit Core 300 3.5
$80
#3 in Medium (130–249 CADR) · 141 smoke CADR · ~219 sq ft · 50 dB max · 7.5 lb
The best-selling compact purifier; no auto mode, thin carbon, but cheap and quiet on low.
$0.57 per CADR$45/yr filtersAHAM VerifideEnergy Star
Spec-based
3
$100
#12 in Medium (130–249 CADR) · 130 smoke CADR · ~202 sq ft · 50 dB max · 8.0 lb
Compact with a washable prefilter and auto mode.
$0.77 per CADR$70/yr filtersAHAM VerifideAuto modeEnergy Star
Spec-based
4
$100
#16 in Medium (130–249 CADR) · 150 smoke CADR · ~232 sq ft · 50 dB max · 10.0 lb
Compact-plus unit with a particle sensor.
$0.67 per CADR$80/yr filtersAHAM VerifideAuto modeEnergy Star
Spec-based
5
Medify MA-25 3.0
$100
#17 in Medium (130–249 CADR) · 230 smoke CADR · ~356 sq ft · 55 dB max · 10.0 lb
Budget medium-room unit; CADR is manufacturer-claimed.
$0.43 per CADR$100/yr filters
Spec-based
6
Honeywell HPA100 2.4
$100
#4 in Compact (under 130 CADR) · 100 smoke CADR · ~155 sq ft · 55 dB max · 8.6 lb
Small HPA for a bedroom; basic and loud for its CADR.
$1.00 per CADR$35/yr filtersAHAM VerifideEnergy Star
Spec-based
7
$80
#5 in Compact (under 130 CADR) · 100 smoke CADR · ~155 sq ft · 55 dB max · 7.0 lb
Tower with UV-C; low CADR and loud for its size, but cheap.
$0.80 per CADR$60/yr filtersAHAM VerifideEnergy Star
Spec-based
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