Honeywell HPA100 True HEPA Purifier
The Honeywell HPA100 True HEPA Purifier delivers verified AHAM CADR performance (100 Smoke / 100 Dust) for rooms up to 155 sq ft. Featuring multi-stage H13 True HEPA and active odor adsorption.
This product is covered independently under ClariSelect editorial standards. Commercial affiliate purchasing links remain inactive pending partner approval. Consult manufacturer specifications below.
3-Year True Cost of Ownership Model
Independent chamber CADR verified under AHAM AC-1 protocol.
Minimal airflow drop (~0.14 in. w.g.) protects blowers with limited static headroom.
Thermal beverage board frame with wire backing to prevent media collapse under blower load.
Bulk multi-pack procurement typically reduces annual per-filter cost by 25% to 40%.
- Certified 100 Smoke CADR rating
- Whisper-quiet sleep mode (35)
- Energy Star low power consumption
- Real-time air quality sensor
- Replacement filter required every 6 to 12 months
- Coverage capped at 155 sq ft
Verified Engineering Specifications
| Nominal Dimensions | Round / Custom Cartridge | Actual Dimensions | Integrated Machine Unit |
|---|---|---|---|
| Filter Depth | Standalone Unit | Media Construction | H13 True HEPA & Granular Carbon |
| ASHRAE MERV Rating | MERV 17 (True HEPA) | Proprietary Rating | |
| Initial Resistance | Integrated Variable Multi-Speed Blower | Airflow Capacity | 155 sq ft @ 4.8 ACH (372 sq ft @ 2 ACH) |
| Smoke CADR | 100 CFM | Dust / Pollen CADR | 100 / 110 CFM |
| Acoustic Noise | 35 – 54 dB | Rated Room Coverage | 155 sq ft @ 4.8 ACH (372 sq ft @ 2 ACH) |
| Replacement Filter Cost | $29.99 | Replacement Interval | Every 12 (HEPA) / 3 (Pre-filter) months |
| Annual Consumable Cost | 39.99 | Compatible Equipment | Honeywell Home HPA100 System |
Our Take on the Honeywell HPA100 True HEPA Purifier
An exceptionally reliable room air purifier with whisper-quiet operation (35 min noise) and proven particle removal.
Filtration Performance Note
Traps 99.97% of particles down to 0.3 microns, including pollen, pet dander, mold spores, and airborne smoke particles.
Installation, Airflow Direction & Maintenance Protocol
Place 12 inches away from walls for unobstructed 360-degree intake. Replace HEPA filter when indicator light illuminates.
Common Questions About the Honeywell HPA100 True HEPA Purifier
What size room can the Honeywell HPA100 True HEPA Purifier handle?
It is certified for rooms up to 155 sq ft, completing roughly 5 air changes per hour in spaces of that volume.
How noisy is this purifier on low speed?
On its lowest setting, sound levels drop to 35, which is quieter than a gentle whisper.
How much do replacement filters cost for the HPA100?
Official Filter HRF-R1 & Pre-filter A replacement filters typically cost between $30 and $45 per cycle.
Direct Compatible Alternatives
Levoit Core 300S Smart True HEPA Air Purifier
When to choose: Comparable small-room air purifier alternative.
Levoit Core 200S Smart Air Purifier
When to choose: Alternative small-room air purifier with similar CADR profile.