Animal Disease Response TrainingPersonal Protective Equipment

August 2010

AWR 206-1

Animal Disease Response Training

Scope Statement

This lesson provides responders with information regarding procedures for selection, inspection, and safe use of appropriate personal protective equipment (PPE). Varying styles and levels of PPE appropriate for animal disease incidences and the associated requirements will be introduced. The lesson also discusses selection of task specific PPE, donning and doffing, and safety issues associated with wearing PPE.

Animal Disease Response Training

Terminal Learning Objective

Describe the proper procedures for inspection and use of personal protective equipment to ensure the safety of responders during an animal disease incident.

Animal Disease Response Training

Enabling Learning Objectives

2-1 Describe the process and authority used to determine proper levels of protection mandated during response to an animal disease incident.

2-2 Identify factors to consider while working in PPE.

2-3 Identify the various components of PPE used in an agriculture emergency.

2-4 Identify physiological and psychological stressors that can affect users of all levels of PPE.

Animal Disease Response Training

Choice of respiratory and dermal protection depends upon?

• Specific disease agent

• Conditions in which equipment is worn

• Activities and exposure level of personnel

Animal Disease Response Training

Level of Protection• Determined by animal health authorities in cooperation

with public health officials– State Veterinarian– Area Veterinarian In Charge (USDA-AVIC)– Federal, state, tribal public health officials

• Assured by safety officers to be appropriate

Animal Disease Response Training

Personal Protective Equipment Overview

• Body• Hand• Eye• Foot• Respiratory

Animal Disease Response Training

Body Protection

Permeable suitsImpermeable suits

Animal Disease Response Training

Hand Protection

Biological and Chemical Hazards

Polyvinyl chloride (PVC)

Nitrile

Neoprene

Latex

Mechanical Hazards

Leather/work glove

Animal Disease Response Training

Eye protection should always be worn when dealing with biological and chemical materials

Must meet ANSI Z-87.1

Animal Disease Response Training

Foot protection should always be worn

• Shoes should completely cover and protect the foot • Impermeable shoe covers can provide barrier

protection to shoes or boots

Animal Disease Response Training

What are the required components of a respiratory protection program?

• Written program• Training• Medical evaluation• Fit testing• Respirator maintenance program

NIOSH approved disposable particulate respirators are the minimum level of respiratory protection that should be worn

OSHA’s respiratory standard (29 CFR 1910.134) is mandatory

Animal Disease Response Training

Respirators can be divided into two classes

• Air supplying • Air purifying

Which offers more protection?

Animal Disease Response Training

Oxygen-Deficient Atmospheres

• Present in pits, silos and tanks

• Normal air contains 20.8% O2

• ≤ 19.5% O2 in air is deficient– displaced by another gas

– consumed by combustion

– changed by reaction

Animal Disease Response Training

The following respirators are not safe in an oxygen-deficient environment!

Animal Disease Response Training

Respirator type may be determined by pressure inside the mask when inhaling • Negative pressure • Positive pressure

Which offers more protection?

Animal Disease Response Training

OSHA requires workers pass a fit test before wearing a respirator on the job

PortaCount Quantitative Fit Testing SystemCourtesy TSI, Inc.

Quantitative Qualitative

Allegro Complete Smoke Fit Test Kit Photo Courtesy Gempler’s

Both are acceptable. Which is better?

Animal Disease Response Training

Particulate filters are classified based on resistance to oil

Animal Disease Response Training

Particulate filters are further classified base on efficiency

• 95 percent, designated 95• 99 percent, designated 99• 99.97 percent, designated 100 (HEPA filter)

Animal Disease Response Training

Acceptable for animal disease response

Nine categories of particulate respirators

N R P

100 100 100

99 99 99

95 95 95

Animal Disease Response Training

Respirators can be further divided based on facial coverage

• Full-face • Half-face

Which offers more protection?

Animal Disease Response Training

Air Purifying Respirators• Filter out dusts and vapors• Must have correct color-coded cartridge• Must be NIOSH-approved

Color Type Protection against

Magenta, purple

High Efficiency Particulate Air (HEPA)

Dust particles, viruses, bacteria

Black Organic vapor Solvents

Yellow Ammonia Animal wastes

Animal Disease Response Training

What is the proper order of Fitting Instructions?

Must be followed each time respirator is worn

Animal Disease Response Training

User seal checks must be performed before each use

•Only after passing a fit test •To ensure a good respirator-to-face

seal•Positive pressure respirators must be

checked in negative mode

If you CANNOT achieve a proper fit DO NOT enter the contaminated area.

Animal Disease Response Training

Powered Air-Purifying Respirator (PAPR)

PAPRs use a fan to convey contaminated air through a HEPA filter that removes contaminants and supplies purified air to the facepiece worn by the responder.

Animal Disease Response Training

Integrated ProtectionCombining Components of PPE

Level A Level B Level C Level D

Animal Disease Response Training

Personal Protective EquipmentLevel C

• Air-purifying respirator (N-95)• One-piece coverall with apron• Hooded two-piece splash suit • Gloves, inner chemical-resistant • Gloves, outer chemical-resistant • Boots or booties• Safety glasses or goggles

Animal Disease Response Training

Personal Protective Equipment Level D

• Coverall – Hooded or two-piece

• Gloves • Boots/shoes

– disposable covers

• Safety glasses • Comfort mask

Animal Disease Response Training

What are Physiological Stressors?

• Lack of physical fitness• Age• Dehydration• Obesity• Work Rate• Ambient Temperature

Animal Disease Response Training

What are Psychological Stressors?

• Claustrophobia• Anxiety or panic• Situational traumatic

stress

Animal Disease Response Training

Summary

• Many factors determine PPE in an agriculture emergency– Tasks performed– Conditions which PPE is worn– Specific disease agent involved

• Proper procedures for inspection and use of PPE critical for reducing spread of disease