1. Figure A Figure B 12/07/2006 Rev B
If your screen looks like the picture (figure A) with the slide show visible (circled in red) on the left hand side of the screen you need to press the button F5 now
Figure A
If your screen looks like the picture (figure B) click your left mouse button to continue.
Figure B
12/07/2006 Rev B

2. T-1580 Respirators care, usage and filter selection
This work has been produced by DGL (Aust) Pty Ltd
This Learner’s Tool is about the skills and knowledge required to load vehicles at warehousing facilities of DGL (Aust)
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3. Before you get started 11/21/2018
It is important that you complete all sections in this learning tool as it has been designed so that
You can abide by the procedures of our organization.
You can apply what you have learnt in this package in your day to day activities
This Learning Tool is designed to be relevant only to DGL (Aust) Pty Ltd employees and only applied whilst employed with DGL (Aust) Pty Ltd
You may have already acquired knowledge in the area identified in this package as you may have completed some specialized training. Or you may have been working within the industry for some time. Should you identify any improvement opportunities in the information contained in this package or have difficulties completing the package please contact
National Training and Compliance Manager
DGL (Aust) Pty Ltd
PO BOX 1594
EAGLE FARM QLD 4009 Ph
Fax
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4. Introduction
When working with chemicals care needs to be taken to ensure exposures minimized to the employee.
When under taking a task Personal protective equipment PPE may be required as one of the controls to minimize the exposure to an employee.
The information contained in this learning tool focuses on
How a respirator works
The selection of and usage of canisters
Fitting of both a full face and half mask respirator
Care and maintenance of respirators
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5. How a respirator works
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6. How a respirator works
A respirator is a device that protects you from airborne hazards.
It filters the air in the work area or supplies
clean air from outside the work area. Some
respirators have filters that sort out particles,
gases, and vapours from the air.
Respirator works by negative-pressure. When
you inhale, your lungs and heart work to pull air
through the filters. This makes a suction, or
negative pressure, inside the mask. When you
exhale a valve opens and is discharged.
Air does not travel back through the filter
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7. The selection of filters
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8. The selection of filters
Air-purifying respirators clean the air that is already in the work area by using filters.
You must have the right filters or cartridges
for the job. The type you use depends on
the type of hazard you need to protect
yourself against. There are many kinds
of filters and cartridges.
Filters and cartridges are sometimes color-
coded according to the hazard for which they are used. It is important to read the information on the filter/cartridge itself not just look at the color to see if you have the right one for the hazard
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9. The selection of filters (Cont)
What the letters on my filter cartridges mean (e.g. A1B1E1)
These letters and numbers refer to the filter type and class.   A - Organics (solvents)   B - Inorganics & acid gases (chlorines ect.)   E - SO2 and other acid gases   G - Agricultural chemicals (low vapour pressure)   K - Ammonia   Hg - Mercury   1 - low to medium absorption capacity   2 - medium absorption capacity   3 - high absorption capacity
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10. The selection of filters (Cont)
A canister is a reusable item however only when the history of the canister is known through a log of usage
Never use a canister that has an unknown history
Discard the canister if working time of the canister exceeds to 20hrs
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11. Inspection of respirators
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12. Inspection of Respirators
Respirators must be inspected before each use to ensure good operating condition. The face piece must be repaired or replaced if there are damaged or defective parts. The following inspection procedure is suggested.
1. Check face piece for cracks, tears and dirt. Be certain face piece,
especially face seal area, is not distorted.
2. Examine inhalation valves for signs of distortion, cracking or tearing.
3. Make sure that head straps are intact and have good elasticity.
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13. Inspection of Respirators
4. Examine all plastic parts for signs of cracking or fatiguing.
Make sure filter gaskets or seal areas are in good condition.
5. Remove exhalation valve cover and examine exhalation valve and
valve seat for signs of dirt, distortion, cracking or tearing. Replace exhalation valve cover.
6. Inspect lens of full face piece for any damage that may impair
respirator performance or vision.
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14. Fitting a full face respirator
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15. Fitting a Full Face mask
Fully loosen all straps.
Pull hair back with one
hand. Bring face piece up
to face with other hand
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16. Fitting a Full Face mask
While holding the face piece
in place, pull the straps over
your head.
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17. Fitting a Full Face mask
Tighten the two bottom straps
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18. Fitting a Full Face mask
Tighten the two top straps
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19. Fitting a Full Face mask
Once your face mask is fitted check the fit by conducting a positive and negative pressure seal check
Positive Pressure User Seal Check
Place the palm of your hand over the
exhalation valve cover and exhale gently.
The face piece should bulge slightly.
If air leaks between the face and the
face seal of the respirator, reposition it
And adjust the straps for a tighter seal.
If you cannot achieve a proper seal, do not continue and see your supervisor
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20. Fitting a Full Face mask
Once your face mask is fitted check the fit by conducting a positive and negative pressure seal check
Negative pressure Check
Place the palms of your hands over the
cartridges and inhale gently.
The face piece should collapse slightly.
If air leaks between the face and the
face seal of the respirator, reposition it
and adjust the straps for a tighter seal..
If you cannot achieve a proper seal, do not continue and see your supervisor
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21. Fitting a half face respirator
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22. Fitting a Half Face mask
Place the respirator over
your nose and mouth with
bottom straps unfastened.
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23. Fitting a Half Face mask
Pull the top strap over your
head, placing the head cradle
on the crown of your head.
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24. Fitting a Half Face mask
Hook the bottom straps
Together behind your neck.
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25. Fitting a Half Face mask
Adjust strap tension to
achieve a secure fit
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26. Fitting a Half Face mask
Once your face mask is fitted check the fit by conducting a positive and negative pressure seal check
Positive Pressure User Seal Check
Place the palm of your hand over the
exhalation valve cover and exhale gently.
The face piece should bulge slightly.
If air leaks between the face and the
face seal of the respirator, reposition it
And adjust the straps for a tighter seal.
If you cannot achieve a proper seal, do not continue and see your supervisor
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27. Fitting a Half Face mask
Once your face mask is fitted check the fit by conducting a positive and negative pressure seal check
Negative pressure Check
Place the palms of your hands over the
cartridges and inhale gently.
The face piece should collapse slightly.
If air leaks between the face and the
face seal of the respirator, reposition it
and adjust the straps for a tighter seal..
If you cannot achieve a proper seal, do not continue and see your supervisor
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28. Care and maintenance of respirators
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29. Care and maintenance Remove cartridges and filters.
Clean face piece (excluding filters and cartridges) by immersing in warm cleaning solution, water temperature not to 49º C, and scrub with soft brush until clean. Add neutral detergent if necessary. Do not use cleaners containing lanolin or other oils.
Disinfect face piece by soaking in a solution of quaternary ammonia disinfectant, or sodiumhypochloriteor household bleach in 7.5 L of water, or other disinfectant.
Rinse in fresh, warm water and air dry in a contamination free area
Respirators need to be cleaned at the end of every shift
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30. Test your Knowledge
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31. Test your knowledge
Through the following slides you will be asked an number of questions to show that you have understood the content of this learning tool
Please record your answer on the training form F-260.
You will be required to submit the answers to the DGL HSEQ unit
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32. Question 1
All respiratory canisters are the same and can be used for all chemicals
a) True
b) False
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33. Question 2 a) True b) False
A canister is not to be used if the history of the canister is not known
a) True
b) False
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34. Question 3 When testing for fit the user needs to
a) do a positive pressure test
b) do a negative pressure test
c) both A & B
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35. Question 4
A respirator does not need to be cleaned if you are using it the next day
a) True
b) False
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36. Additional information