When choosing a motor for a wet dry vacuum cleaner, there are several factors that manufacturers need to consider to ensure optimal performance and reliability. One of the most important aspects is the motor's ability to handle both wet and dry materials without causing damage or reducing suction power.

Wet dry vacuum cleaner motors are often designed with special features to protect against water damage. For instance, motors may be equipped with sealed bearings and corrosion-resistant components to prevent rust and deterioration when exposed to moisture. Manufacturers also pay attention to the design of the motor’s ventilation system, ensuring that it allows for efficient airflow and cooling, even when the vacuum is being used for prolonged periods.

Another important consideration is the motor's noise level. While it is difficult to eliminate noise entirely in high-performance motors, manufacturers work to design quieter motors without compromising on suction power. This is especially important in commercial settings where loud equipment can be disruptive to workers or customers.

Additionally, the motor's power output and efficiency are key considerations. Manufacturers aim to create motors that provide optimal suction power while using minimal energy. This is achieved through the design of the motor, as well as through innovations like energy-efficient components and motors with variable speed control to adjust power based on the cleaning task at hand.