Honeywell HPA300 vs IQAir HealthPro Plus — Which Should You Buy?

Side-by-side comparison of Honeywell HPA300 and IQAir HealthPro Plus. We compare specs, performance, and value to help you decide.

Updated 2026-03-09 Independently reviewed
Honeywell HPA300

Honeywell HPA300

8.1/10
$199 /one-time
VS
IQAir HealthPro Plus

IQAir HealthPro Plus

9.3/10
$899 /one-time

Feature Comparison

Feature Honeywell HPA300 IQAir HealthPro Plus
Room Coverage Up to 465 sq ft Up to 1,125 sq ft
CADR 320 (smoke), 300 (dust), 300 (pollen) 300 (smoke), 300 (dust), 300 (pollen)
Filter Type True HEPA + activated carbon HyperHEPA + V5-Cell gas filter
Filter Life 12 months 18–24 months (HyperHEPA), 12 months (V5)
Annual Filter Cost ~$50 ~$250
Noise Level 30–55 dB 32–67 dB
Smart Features None None
Air Quality Sensor No No
Weight 17.5 lbs 35 lbs
Energy Star Yes No

Honeywell HPA300

Pros

  • High CADR for the price
  • Covers up to 465 sq ft
  • True HEPA filtration
  • Turbo mode for quick cleaning
  • Allergen filter option available
  • 5-year warranty
  • Proven reliability

Cons

  • No smart features
  • Can be loud on high
  • Basic, utilitarian design

IQAir HealthPro Plus

Pros

  • HyperHEPA captures ultrafine particles
  • Hospital-grade filtration
  • Covers up to 1,125 sq ft
  • Separate gas and particle filters
  • Swiss engineering and build quality
  • 5-year warranty
  • Used by allergy specialists

Cons

  • Very expensive
  • High filter replacement costs
  • Large and heavy

Our Verdict

Honeywell HPA300

Best for allergy sufferers who want maximum filtration power and don't need app control. A dependable choice for large bedrooms and living rooms.

Limited Offer — Check Today's Price

IQAir HealthPro Plus

The gold standard for serious allergy and asthma sufferers. Worth the investment if you need the highest level of filtration and have the budget.

20% Off — Limited Time, Check Now

Our Methodology

We test each air purifier in a sealed 250 sq ft room with a particle counter, measuring PM2.5 reduction over 1 hour. We measure noise at low/medium/high with a calibrated SPL meter, calculate annual filter costs, and evaluate smart features and build quality. No manufacturer has editorial influence.

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