Please choose the correct answer to the question: A student conducts an investigation using mold spores. In one part of the investigation, he needs to closely examine a spore sample. Which piece of equipment does the student need to use to keep mold spores from entering his respiratory system?

Answer1: breathing mask Answer2: safety goggles Answer3: rubber gloves Answer4: lead smock

Answer format: answer1/answer2/answer3/answer4