What items are predominantly used for decontamination of aircrew and equipment?

The most appropriate choice for the decontamination of aircrew and equipment is the use of M291 and M295 decontamination kits and chlorine bleach. These items are specifically designed for the effective removal of chemical, biological, radiological, and nuclear (CBRN) contaminants. The M291 decontamination kit is a pouch that contains decontaminating powder, while the M295 is a decontaminating wipe. Both are formulated to neutralize harmful agents quickly and efficiently, making them ideal for use in field conditions where exposure to these types of threats may occur.

Chlorine bleach is also widely recognized for its disinfecting properties and ability to kill a broad spectrum of pathogens. Its use in conjunction with the decontamination kits enhances the overall effectiveness in ensuring that both personnel and equipment are properly sanitized following contamination incidents.

While water and soap solutions, alcohol wipes, and personal sanitizers can provide some level of cleaning, they are not specifically tailored to address the unique needs of decontaminating aircrew and equipment exposed to hazardous substances. Additionally, gloves and dust masks serve more as personal protective equipment rather than direct decontaminating agents, which emphasizes the importance of the items in option B for specific decontamination needs.