Honeywell AllergenPlus HPA175 Review
by Honeywell
$195.63
Estimated Annual Filter Cost: ~$100/year
Summary
The Honeywell AllergenPlus HPA175 is a budget-friendly tower that pairs verified True HEPA filtration with mid-room airflow. Its 132 CFM (Cubic Feet per Minute) smoke CADR (Clean Air Delivery Rate) gives it enough punch for a 200 ft² bedroom or den and it stays reasonably hushed at its lowest setting. Annual upkeep lands under $50 thanks to once-a-year HEPA swaps, though you’ll change the carbon sheet quarterly. Lack of timers, sensors or smart control—and Honeywell’s inflated 990 ft² claim—are the main compromises.
Here's what this purifier does best
- True HEPA on a slim budget: Captures 99.97 % of PM0.3 with zero ozone or gimmicks.
- Solid bedroom-plus airflow: 132 CFM (Cubic Feet per Minute) smoke CADR (Clean Air Delivery Rate) beats most <$200 towers.
- Low running costs: Two G filters + four A pre-filters ≈ $50 yr—cheaper than many rivals.
- Sleep-friendly “Quiet Clean”: ~30 dB whisper hum suitable for light sleepers.
- Simple maintenance: Rear-grille clip gives tool-free filter access in seconds.
Consider these trade-offs
- No Auto or timer: Manual speed changes only—less set-and-forget than sensor-based purifiers.
- Quarterly pre-filter swaps: Carbon sheet clogs fast; skipping changes hurts odor control.
- Marketing overreach: 990 ft² spec is based on <1 ACH (Air Changes per Hour) and misleads first-time buyers.
- Noticeable on high: 55 dB top speed can intrude on conversation or TV.
- Modest carbon layer: Odor/VOC removal lags pellet-carbon competitors (upgrade to optional T pad if smells are a priority).