Winix 5300-2 True HEPA Purifier
The Winix 5300-2 True HEPA Purifier delivers verified AHAM CADR performance (243 Smoke / 232 Dust) for rooms up to 360 sq ft. Featuring multi-stage H13 True HEPA and active odor adsorption.
3-Year True Cost of Ownership Model
AHAM AC-1 verified room air filtration throughput for fine particulate and smoke reduction.
Acoustically evaluated across whisper-quiet sleep mode and maximum turbo airflow settings.
Sized for 4.8 air changes per hour (ACH) in designated living room and bedroom layouts.
Total routine scheduled replacement filter expense projected over continuous operation.
- Certified 243 Smoke CADR rating
- Whisper-quiet sleep mode (27.8)
- Energy Star low power consumption
- Real-time air quality sensor
- Replacement filter required every 6 to 12 months
- Coverage capped at 360 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 |
| Initial Resistance | Integrated Variable Multi-Speed Blower | Airflow Capacity | 360 sq ft @ 4.8 ACH (860 sq ft @ 2 ACH) |
| Smoke CADR | 232 CFM | Dust / Pollen CADR | 243 / 246 CFM |
| Acoustic Noise | 27.8 – 54.8 dB | Rated Room Coverage | 360 sq ft @ 4.8 ACH (860 sq ft @ 2 ACH) |
| Replacement Filter Cost | $49.99 | Replacement Interval | Every 12 Months |
| Annual Consumable Cost | $49.99/yr | Compatible Equipment | Winix 5300-2 System |
Our Take on the Winix 5300-2 True HEPA Purifier
An exceptionally reliable room air purifier with whisper-quiet operation (27.8 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 Winix 5300-2 True HEPA Purifier
What size room can the Winix 5300-2 True HEPA Purifier handle?
It is certified for rooms up to 360 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 27.8, which is quieter than a gentle whisper.
How much do replacement filters cost for the 5300-2?
Official Filter A (115115) replacement filters typically cost between $30 and $45 per cycle.
Comparable Air Purifiers
Coway Airmega AP-1512HH Mighty Air Purifier
When to choose: Comparable medium-room air purifier alternative.
Levoit Core 400S Smart Air Purifier
When to choose: Alternative medium-room air purifier with similar CADR profile.