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

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) 11/21/2018

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 07 3868 1001 Fax 07 3868 1055 11/21/2018

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 11/21/2018

How a respirator works 11/21/2018

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 11/21/2018

The selection of filters 11/21/2018

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 11/21/2018

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 11/21/2018

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 11/21/2018

Inspection of respirators 11/21/2018

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. 11/21/2018

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. 11/21/2018

Fitting a full face respirator 11/21/2018

Fitting a Full Face mask Fully loosen all straps. Pull hair back with one hand. Bring face piece up to face with other hand 11/21/2018

Fitting a Full Face mask While holding the face piece in place, pull the straps over your head. 11/21/2018

Fitting a Full Face mask Tighten the two bottom straps 11/21/2018

Fitting a Full Face mask Tighten the two top straps 11/21/2018

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 11/21/2018

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 11/21/2018

Fitting a half face respirator 11/21/2018

Fitting a Half Face mask Place the respirator over your nose and mouth with bottom straps unfastened. 11/21/2018

Fitting a Half Face mask Pull the top strap over your head, placing the head cradle on the crown of your head. 11/21/2018

Fitting a Half Face mask Hook the bottom straps Together behind your neck. 11/21/2018

Fitting a Half Face mask Adjust strap tension to achieve a secure fit 11/21/2018

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 11/21/2018

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 11/21/2018

Care and maintenance of respirators 11/21/2018

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 11/21/2018

Test your Knowledge 11/21/2018

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 11/21/2018

Question 1 All respiratory canisters are the same and can be used for all chemicals a) True b) False 11/21/2018

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 11/21/2018

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 11/21/2018

Question 4 A respirator does not need to be cleaned if you are using it the next day a) True b) False 11/21/2018

Additional information