Agricultural mechanics instruction includes a broad array of machinery, structures, and technical systems, as well as a diverse workforce. Virtually every aspect of agriculture has a mechanics component and a large portion of secondary agriscience curriculum is devoted specifically to teaching agricultural mechanics. Further, the agricultural mechanics laboratory provides students with an opportunity to learn through authentic learning scenarios. The purpose of this research is to investigate Missouri high school agricultural mechanics students' safety knowledge and safety attitudes. Researchers identified an increase in female students enrolling in agricultural mechanics coursework. This study also concludes students perceive they receive minimal training, access, and/or use of hearing and air quality PPE. It was concluded the factors of age, gender, semesters of agricultural mechanics courses, and agricultural education district have limited ability to explain differences in in student's PPE knowledge or PPE comfort. Moreover, researchers identified implications of changing demographics on PPE design and usability, both in the laboratory and the workplace. Future research should be conducted regarding PPE design, transfer of perceptions, and what PPE is needed by both teachers and students.