Mechanical air filters rely on physical barriers to capture airborne particles, whereas electronic air filters/air cleaners use electrostatic charges to attract and capture particles. Mechanical air filters are often more effective at removing larger particles, such as dust and pollen, while electronic air filters/air cleaners are often more effective at removing smaller particles, such as viruses and bacteria. The choice between mechanical and electronic air filters/air cleaners depends on the specific application and the type of airborne pathogens present.