| Category | Eco-friendly Moss Panel Air Purification System (PLA-based) | Conventional Air Purification System (Filter-type / Industrial) |
| Purification Method | Nature-based air purification through photosynthesis | Mechanical filtration using electric fans and filters |
| Filter Replacement | Not required – naturally maintained | Requires regular filter replacement (higher operation cost) |
| Carbon Reduction Effect | Absorbs CO₂ and releases oxygen (effective carbon reduction) | Increased indirect CO₂ emissions due to high electricity use |
| Energy Consumption | Almost none – operates through natural air circulation | High power consumption (electricity-based system) |
| Noise Level | Completely silent | Noise from operating fans |
| Maintenance | Minimal – requires only watering and natural growth | Frequent maintenance – filter replacement and internal cleaning |
| Applicable Environments | Outdoor spaces such as bus stops, building façades, parks | Mainly indoor use (homes, offices, factories) |
| Economic Efficiency | Low maintenance cost after installation | Lower initial cost but high long-term operating cost |
| Material | Eco-friendly PLA (corn-starch-based) moss panel | Plastic materials (non-biodegradable) |
