provided are an air blower and a protective suit that includes the air blower , which eliminates an air hose that connects the air blower to the protective suit without the air hose getting caught on a protrusion in a work area , which provides favorable workability . with respect to an air blower for a protective suit , the air blower configured to include an air blowing part that includes an air blowing machine , and a filter part that incorporates a filter and that is connected to the air blowing part , is characterized in that the air blower is arranged at the nape of the neck of a wearer of the protective suit .