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Nebulizer Systems
| Particle Size | Direction | Velocity | |
|---|---|---|---|
| Passive-Diffusion Nebulizers (SinuNeb) | Smaller particles (3 µm) | Constant direction | Slower velocity |
| Vortex-Propelled Nebulizers (ViaNase) | Larger particles (9–11 µm) | Multiple directions | Faster velocity |
| Pulsating Aerosol Delivery Device (PARI Sinus) | Smaller particles (3 µm) | Aerosol stream superimposed by a pulsation | Very slow velocity (3–6 L/minute) |
