Advantages of Using a Negative Pressure Respirator Hood. Guidance on the Use of Hoods with Chemical Protective Respirators and Chemical Protective Suits

摘要

Negative pressure respirators, sometimes called masks, often come with protective hoods. These hoods attach to the respirator, generally around the outside of the face seal, and cover the head and the upper shoulders. Figure 1 shows an example of an MCU2P negative pressure respirator. Figure 2 shows an M40 respirator, with a respirator hood.