Personal Protective Equipment (PPE) Classification Systems
|OSHA/EPA Classification||Level A||Level B||Level C||Level D|
|Protection provided||Highest level of skin, eye, respiratory protection||Highest level of respiratory protection; lower level of skin protection.||Lower level of respiratory and skin protection.
Adequate for radiation event response where other hazards have been determined not to be present.
|Lowest level of respiratory and skin protection.|
Identified or suspected hazards requiring maximal skin, eye, and respiratory protection.
Working in confined areas where hazards have not been fully characterized.
Identified or suspected hazards requiring maximal respiratory protection.
Working in atmospheres containing less than 19.5% oxygen.
Lower level skin hazard may be present.
Hazards have been identified.
Hazards will not be absorbed by or adversely affect exposed skin.
All criteria for using an air purifying respirator are met (i.e., concentrations of all airborne contaminants are known, appropriate filters are available, oxygen levels are sufficient).
Atmosphere contains no known hazards
No or very low potential for unexpected respiratory or skin contact with environmental hazards.
|Who should wear||First responders
When identified or potential risk of biological, liquid or vapor chemical hazard exposure exists.
When entering the most heavily contaminated radiation zones to rescue victims or protect valuable property necessary for public welfare
|First responders and first receivers
When caring for patients/victims likely to be contaminated with radiological material
When working in post-decontamination areas should wear Standard Precautions PPE (per protocol) for infection control purposes*
|NFPA PPE Classes||Class 1||Class 2||Class 3||Class 4|
|OSHA/EPA Level A PPE Equivalent
NFPA 1991 (2005 ed.) "Class 1" PPE ensemble worn with NIOSH CBRN SCBA
|OSHA/EPA Level B PPE Equivalent
NFPA 1994 (2007 ed.) "Class 2" PPE ensemble worn with NIOSH CBRN SCBA
NFPA 1971 (2007 ed.) "CBRN option" PPE ensemble worn with NIOSH CBRN SCBA
|OSHA/EPA Level C PPE Equivalent
NFPA 1994 (2007 ed.) "Class 3" PPE ensemble worn with NIOSH CBRN APR/PAPR
NFPA 1994 (2007 ed.) "Class 4" PPE ensemble worn with NIOSH CBRN APR/PAPR
NFPA 1951 (2007 ed.) "Technical Rescue Ensemble" worn with NIOSH CBRN APR/PAPR
|OSHA/EPA Level D PPE Equivalent
NFPA 1994 (2007 ed.) "Class 4" PPE ensemble
Military PPE - Mission-Oriented Protective Posture (MOPP) Gear
|MOPP Gear||MOPP 4||MOPP 3||MOPP 2||MOPP 1||MOPP 0||MOPP Ready|
|Indications||Attack with CBRN agents is imminent or has already occurred.
CBRN hazard is not fully characterized.
|Attack with CBRN agents is probable or has already occurred.||Preattack.
Attack with CBRN agents is likely.
Attack with CBRN agents is possible.
Time to achieve MOPP 4 from MOPP 1: ≤4 minutes
Period of increased alert.
Time to achieve MOPP 4 from MOPP 0: ≤8 minutes
|Protection Provided||Highest degree of skin, eye, respiratory protection.||Used in areas where skin contact with liquids or vapors is nonhazardous.
Highest degree of respiratory protection.
|High degree of skin protection.||High degree of protection against persistent chemical agents||None immediately.
Equipment must be available within 5 minutes for putting on ("donning").
|Overgarment||Worn||Worn||Worn||Worn||Readily available||Can be issued within 2 hours|
|Boots||Worn||Worn||Worn||Readily available||Readily available||Can be issued within 2 hours|
|Helmet Cover||Worn||Worn||Worn||Readily available||Readily available||Can be issued within 2 hours|
|Gloves||Worn||Readily available||Readily available||Readily available||Readily available||Can be issued within 2 hours|