1. Aspirating spray
The suction type spray adopts the suction principle to suck the liquid into the spray, and then use the air pressure to spray the liquid out. The aspirating spray is generally suitable for spraying low viscosity liquid, but its structure is relatively simple and easy to use.
2. Airflow spray
The air flow spray adopts the Venturi principle to mix gas and liquid to form droplets. Airflow spray is suitable for spraying high viscosity liquid, but its structure is complex and its price is high.