Scenario $2-$ CSI Weldon is called to the scene of an aggravated battery at $2am$ in a poorly lit parking lot of an out$-$of$-$business grocery store. CSI Weldon starts by taking notes of the crime scene. CSI Weldon then begins taking photographs of the crime scene using her digital camera. She then searches the scene for a weapon and blood. After locating a bloody stick, a syringe, a bag of white powder, and $22$ blood stains in the parking lot CSI Weldon creates a sketch of the scene in their graph paper notebook.

List four pieces of PPE CSI Weldon should wear while processing the crime scene and collecting evidence. What route of exposure does each piece of PPE protect from?