41 Educational services, namely, conducting classes, seminars, and training in the field of cleaning, disinfection, sanitation, hygiene and infection control, proper selection and use of cleaning products, equipment and services; educational services, namely, conducting classes, seminars, and workshops, regarding efficient dishwashing practices and procedures; educational services, namely, conducting classes, seminars, and workshops, in the field of prevention and treatment of pest infestation; training services regarding efficient dishwashing practices and procedures; training services in the field of prevention and treatment of pest infestation; educational services, namely, conducting classes, conferences, workshops, certification courses, seminars and training about food safety, hygiene, sanitation, and customer safety for the restaurant and food services industry and distribution of training materials in connection therewith