The Filtration Process
Air passes through four distinct stages before returning to your room:Stage 1: Pre-Filter
The pre-filter is the first line of defense. It captures large airborne particles before they reach the main filter:- Dust and lint
- Hair and pet fur
- Large pollen grains
- Visible debris
Stage 2: HEPA 14 with Antibacterial Coating
The core of the AirPro’s filtration system is a medical-grade HEPA 14 filter with an antibacterial coating. This filter captures 99.9% of ultra-fine particles as small as 0.1 microns, including:- Dust mites and their waste
- Mold spores (including black mold)
- Pollen (all types)
- Pet dander
- Bacteria
- Fine particulate matter (PM2.5)
Stage 3: Activated Carbon
After passing through the HEPA 14 filter, air moves through an activated carbon layer. Activated carbon uses adsorption — a chemical process where gas molecules bind to the carbon surface — to remove:- Volatile organic compounds (VOCs) from paints, cleaning products, and furniture
- Smoke and tobacco odors
- Cooking smells
- Chemical fumes
- Formaldehyde
Stage 4: UV-C Sterilization
The final stage uses UV-C germicidal light at 254nm wavelength to neutralize any remaining pathogens that passed through the physical filters. UV-C damages the DNA and RNA of microorganisms, rendering them unable to reproduce.Filtration Technology Comparison
| Technology | What It Removes | Particle Size | Odor Removal | Pathogen Kill |
|---|---|---|---|---|
| Pre-Filter | Dust, hair, lint | > 10 microns | No | No |
| HEPA 14 | Fine particles, allergens, mold | Down to 0.1 microns | No | Captures only |
| Activated Carbon | VOCs, smoke, odors | Gas molecules | Yes | No |
| UV-C Light | Bacteria, viruses | N/A | No | Yes |
360-Degree Airflow Design
The AirPro draws air from all directions through its 360-degree intake design. This eliminates dead zones and ensures that air throughout the room passes through the filtration system. In a 430 sq ft room, the AirPro processes all the air in just 10 minutes.Why Multi-Stage Filtration Matters
Single-technology purifiers leave gaps. A HEPA-only unit captures particles but does nothing about odors. A carbon-only filter removes smells but lets fine particles through. UV-C alone cannot capture particles at all. The AirPro’s multi-stage approach addresses the full spectrum of indoor air pollutants in a single pass. Each stage handles what the others cannot.Related: HEPA 14 Filtration · UV-C Sterilization · Air Quality Guide