Common Airborne Allergens
| Allergen | Particle Size |
|---|---|
| Pollen | 10—100 µm |
| Mold spores | 2—20 µm |
| Dust mite debris | 0.5—50 µm |
| Pet dander | 0.5—10 µm |
| Smoke / fine particulate | 0.1—2.5 µm |
| VOCs (off-gassing, cleaning products) | Gaseous (requires carbon filtration) |
Why HEPA 14 Matters for Allergy Sufferers
Standard “True HEPA” (HEPA 13) filters capture 99.95% of particles at 0.3 microns. HEPA 14 raises that to 99.995% — a tenfold reduction in particles that slip through. Over hours of continuous operation, that difference adds up significantly. For allergy sufferers, HEPA 14 means:- Fewer breakthrough particles reaching your nose, throat, and lungs.
- Better capture of ultrafine allergen fragments that trigger immune responses.
- More effective removal of smoke and wildfire particles during high-pollen seasons when air quality is already compromised.
The Role of Activated Carbon
Allergens are not just particles. Volatile organic compounds (VOCs) from cleaning products, new furniture, paints, and adhesives can trigger allergy-like symptoms including headaches, nasal congestion, and eye irritation. HEPA filters do not capture gases — that requires activated carbon adsorption. The AirPro’s third filtration stage uses activated carbon to neutralize VOCs, household odors, and chemical irritants that a HEPA-only purifier would miss entirely.UV-C Sterilization and Allergens
Mold spores and bacteria can colonize damp filter media over time. The AirPro’s built-in UV-C light sterilizes captured biological contaminants, preventing them from multiplying inside the unit and being released back into your air.SonoHealth AirPro for Allergy Relief
| Feature | Allergy Benefit |
|---|---|
| HEPA 14 (99.995% at 0.3 µm) | Captures pollen, dander, dust mites, mold, and fine smoke |
| Activated Carbon stage | Removes VOCs, chemical irritants, and odors |
| UV-C Sterilization | Neutralizes mold spores and bacteria on the filter |
| Antibacterial filter coating | Prevents microbial growth between filter changes |
| 1,200 sq ft coverage (30 min) | Handles large living spaces and open floor plans |
| Night Mode (25 dB) | Silent enough for uninterrupted sleep |
| Aromatherapy tray | Compatible with essential oils for sinus relief |
How to Size an Air Purifier for Allergies
For allergy relief, the purifier should cycle all the air in your room at least twice per hour. The AirPro purifies 430 sq ft in 10 minutes, which means it cycles a standard bedroom (150—200 sq ft) roughly six times per hour — well above the recommended minimum.Pricing
- 1-pack: 219)
- 2-pack: 124.50/unit)
- 4-pack: 114.75/unit)
Related: Best HEPA 14 Air Purifier · AirPro vs. Competitors · Buy AirPro

