A woman puts on a safety mask in an environmental chemistry laboratory in Boulder, Colorado.

---

Research Assistant Chrissy Pruett puts on a safety mask in an environmental chemistry laboratory at the Institute for Arctic and Alpine Research in Boulder, Colorado.

---

Size: 5616px × 3744px
Location: Boulder,Colorado,USA
Photo credit: © Ethan Welty / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: 35-39, accuracy, adult, adults, assistant, camera, caucasian, cheerful, chrissy, coat, color, development, discovery, enjoyment, equipment, ethnicity, expertise, front, glass, glove, hand, happiness, holding, horizontal, image, indoors, lab, laboratory, mask, mid, occupation, pruett, puts, research, safety, view, women, years