D.
When nuisance contamination is present, the alphabetic level used is typically referred to as "Level A" for chemical protection and "Level D" for respiratory protection. Level D is the lowest level of protection, indicating that there is no significant risk of exposure to hazardous materials, and standard work clothes and respirators may be sufficient. This level is suited for situations where contaminants are only a minor irritant or nuisance.
Level A protection is required when the highest level of respiratory, skin, eye, and mucous membrane protection is needed due to the presence of identified vapors, gases, particulates, or liquid splash that pose a high risk. Level B protection is used when the highest respiratory protection is needed, but a lesser degree of skin protection is acceptable. Level C protection is suitable when respiratory protection is required, but skin and eye contact are unlikely.
during chemical or biological warfare agent contamination
During chemical or biological warfare agent contamination.
The level used when nuisance contamination is present, requiring only the lowest form of chemical intervention, is typically referred to as "Level 1" or "Tier 1" response. This level involves minimal intervention and often includes basic cleaning or maintenance to address the issue without significant chemical application. It aims to mitigate minor contamination while ensuring safety and compliance with environmental standards.
It provides 24 hour continuous eye and respiratory protection in nuclear and chemical environments
Respitory protection & Chemical protective garments
Chemical contamination can render the affected foods less safe.
False
initial follow-on
respiratory