Keywords
25-29 years, 30-34 years, 65-69 years, adults only, african-american ethnicity, air conditioning, boston, caucasian appearance, classroom, college, colour image, disability, education, engineer, engineering, engineering college, engineering student, environment control system, front view, happiness, heating, hvac, indoors, industry, instructor, laboratory, looking at camera, massachusetts, meningitis, mid adult, mid adult men, moroccan ethnicity, multi-ethnic group, only men, person in education, photography, portrait, professor, research, science and technology, senior adult, senior men, smiling, spinal meningitis, student, technology, three people, three-quarter length, usa, ventilation, vertical, wheelchair, workforce development, young adult, young men, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, u93172294