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11006130/0503 Copyright ©2005 Business and Legal Reports, Inc.

BLR’s Safety Training Presentations

Respirator Fit Testing29 CFR 1910.134 App. A


Goals

General fit test requirements and qualitative fit test procedures

Quantitative fit test procedures Quiz


Selecting a Respirator

Choose from different models and sizes

Find the best fit Learn how to

put on respirator Become familiar

with the respirator Wear for 5 minutes


Assess Comfort

Position on nose Room for eye

protection Room to talk Position on

face and cheeks


Respirator Fit

Chin placement Strap tension Bridge of nose Spans nose to

chin distance Does not slip


Positive Pressure Seal Check

Cover exhalation valve Exhale gently Slight inflation No evidence of leaks


Negative Pressure Seal Check

Cover inlet opening Inhale gently and

hold breath Face piece

remains deflated No inward leakage


Fit Test Issues

Facial hair Difficulty breathing Unacceptable respirator fit Exercise description Applicable safety equipment


Test Exercises

Normal breathing Deep breathing Turn head to side Move head up and down Talk Grimace Bend over Normal breathing


Isoamyl Acetate Protocol

Odor screening Two bottles prepared Bottle shaken

and sniffed Unidentified—

no fit test Identified—fit test


Isoamyl Acetate Fit Test

Test chamber Organic vapor cartridges IAA in test chamber 2-minute waiting period Fit test exercises Smell—fail test Pass—remove respirator and take breath


Saccharin Solution

Taste threshold screening Enclosure about the head Breathe through mouth,

tongue extended Spray 10 squeezes

of threshold solution Note when tasted No taste after 30

squeezes—fail


Saccharin Fit Test

Do not eat, drink, smoke, chew gum Wear respirator, put on enclosure Breathe through mouth, tongue extended Spray same number of squeezes Perform fit test exercises Taste saccharin—fail No taste—pass


BitrexTM Solution

Taste threshold screening Enclosure about the head Breathe through mouth,

tongue extended Spray 10 squeezes

of threshold solution Note when tasted No taste after 30—fail


BitrexTM Fit Test

Do not eat, drink, smoke, chew gum Wear respirator, put on enclosure Breathe through mouth, tongue extended Spray same number of squeezes Perform fit test exercises Taste Bitrex—fail No taste—pass


Irritant Smoke

HEPA or P100 filter Irritates eyes, lungs,

nasal passages Break tube—squeeze

bulb and tubing Smell weak

concentration of smoke No reaction—fail


Irritant Smoke Fit Test

Close eyes Direct smoke around face seal Begin test exercises Smoke detected—fail No response—pass Sensitivity check


Goals




Quantitative Fit Test

Nonhazardous test aerosols Ambient aerosols Controlled negative pressure Performed by qualified persons Clean and calibrated equipment


Aerosol Quantitative Fit Test

Test chamber HEPA or P100 filter In-mask air sampling Test atmosphere Clean and

inspect respirator


Aerosol Quantitative Procedure

User seal check Stable test agent concentration Concentration measured inside respirator Respirator comfortable and not adjusted Test exercises Fail—5% half mask, 1% full face


CNC Quantitative Fit Test

Inspect respirator and probe

Wear respirator for 5 minutes

Begin test—perform exercises

Results will be calculated automatically Keep a record of the test


Controlled Negative Pressure

Tester must be trained Maintains constant negative pressure Determines leakage air flow Attachments replace filter cartridge Employee closes mouth and holds breath Minimum fit factor required to pass


CNP Fit Test

Normal breathing Deep breathing Turn head side to side Move head up and down Talk Grimace Bend over Normal breathing


CNP REDON

Normal breathing Bending over Head shaking REDON #1 REDON #2 Calculate fit factor


Goals




Summary

Select a comfortable respirator Do user seal checks Tell the tester when the chemical is tasted

or smelled Perform all the test exercises Only wear respirators that have been

fit tested


Quiz

1. What should you consider when assessing the comfort of a respirator?

2. How should you check your respirator’s seal each time you put it on?

3. What is the purpose of the test exercises?

4. What is another name for isoamyl acetate?

5. How do you breathe during the saccharin fit test?


Quiz (cont.)

6. How many squeezes of BitrexTM does a person get during the fit test?

7. What are some of the health hazards of the irritant smoke test?

8. What does a quantitative fit test measure?

9. What does the CNP test require after each exercise?

10. What different test exercises does the CNP REDON test require?


Quiz Answers

1. Position on nose, room for eye protection, room to talk, fit on cheeks

2. Perform positive and negative seal checks

3. To simulate movement during work to see if the respirator remains sealed

4. Banana oil

5. Breathe through open mouth with tongue out


Quiz Answers (cont.)

6. The same number it took to taste the Bitrex during the taste threshold screening

7. Irritates eyes, lungs, and nasal passages

8. Concentrations inside and outside the respirator

9. Hold breath for 10 seconds during sampling

10. Employee must remove and redon the respirator two times

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