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Sundstrom sea half and full face agserv expo

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Respiratory Protection

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Sundstrom sea half and full face agserv expo

  1. 1. Copyright © 2010 by The SEA Group Respiratory protection Step 2: Higher workload – Powered Air-Purifying Respirators Step 1: Lower workload – filtering devices
  2. 2. Copyright © 2010 by The SEA Group Step 1: Low workload – filtering devices Low exposure Higher exposure
  3. 3. Copyright © 2010 by The SEA Group Contents • When can filter protection be used? • Types of filter protection • Ways of exposure/Respiratory system • Airborne contaminants and hazards • Respiratory protective device program • Gas filters • Particle filters • Real life and protection factors • Half face masks/Full face masks • Check prior to use • Cleaning • Maintenance
  4. 4. Copyright © 2010 by The SEA Group When can filter protection be used? •At normal oxygen concentrations • If the contaminant is known and can be trapped in a filter • If the contaminant and its concentration is not so high that it poses an immediate danger to life and health • Clear warning properties (smell or taste) • Where the authorities do not prescribe another form of respiratory protection devices
  5. 5. Copyright © 2010 by The SEA Group Ways of exposure the main way of exposure is inhalation of airborne hazards • Through the digestive system • Through the skin • Through inhalation
  6. 6. Copyright © 2010 by The SEA Group 1. Inhalable dust (100 μm) 2. Thoracic dust (10 μm) 3. Respirable dust (4 μm) = Total dust Particles are split into three groups according to their health risks
  7. 7. Copyright © 2010 by The SEA Group Dust/smoke/mist Two types of contaminants – three risk areas Gas/fumes Lack of oxygen
  8. 8. Copyright © 2010 by The SEA Group Inorganic particles Chrysotile - asbestos Silica dust Crocidolite - asbestos Bacteria Fungal spores Organic particles Mites Particles can be both liquid and solid Particles
  9. 9. Copyright © 2010 by The SEA Group Risks • Permanent lung damage (e.g. silicosis) • Damage to other vital organs (e.g. liver, brain) • Cancer • Fatal injury • Chronic illness (asthma, allergies, etc.)
  10. 10. Copyright © 2010 by The SEA Group Respiratory protection must always be part of a respiratory protection program AS/NZS1715:2009 Respiratory protective equipment must not simply be given to users in the belief that it will automatically provide an adequate level of protection! A respiratory protection program must include the following: • Identification of hazardous substances • Risk assessment • Mitigation of risk through the implementation of technical measures • Choice of appropriate respiratory protection • Training in use, fit and maintenance • Appoint and train a competent person • Document all procedures
  11. 11. Copyright © 2010 by The SEA Group Who has the responsibility? AS/NZS1715:2009 Employer's legal obligations: • To have the expertise to create and manage a respiratory protection program • To provide protection devices that are suitable for both users and their tasks • To provide training in use, fit and maintenance • To monitor compliance with the program • To produce documentation Employee's obligations: • To comply with the program • To use respiratory protection devices in the prescribed manner • To report any problems occurring when using the equipment
  12. 12. Copyright © 2010 by The SEA Group Gas filters - what happens to the gas? Gas molecules are bound in the various types of porous carbon 1 gram of carbon can have an active surface area of 200—2,000 m2 Lignite Coal Peat Charcoal Coconut shell Text
  13. 13. Copyright © 2010 by The SEA Group Gas filter breakthrough A B Time PPM Breakthrough occurs at an accelerating rate
  14. 14. Copyright © 2010 by The SEA Group Gas Filters, Half and Full Facemasks Class Test concentration 1 0.1 percent by volume = 1 000 ppm 2 0.5 percent by volume = 5,000 ppm 3 1 percent by volume = 10,000 ppm Filter type Protects against Colour code A Organic substances with boiling point above +65ºC B Inorganic substances E Acid gases K Ammonia and certain amines
  15. 15. Copyright © 2010 by The SEA Group Sundström gas filters A. Activated carbon B. Polyester filter disc C. Polypropylene casing D. Abbreviated label with use-by date A B C D
  16. 16. Copyright © 2010 by The SEA Group Gas filters SR 217 A1 and SR 218-5 A2 protect against organic contaminants with a boiling point above +65ºC. Gas filters SR 315 ABE1 and SR 294 ABE2 protect against organic contaminants with a boiling point above +65º, inorganic contaminants and acid gases/fumes. Gas filters SR 316 K1 and SR 295 K2 protect against ammonia and certain amines. Gas filter SR 297 ABEK1 protects against the same type of contaminants as gas filter SR 315 and also protects against ammonia. Sundström gas filters
  17. 17. Copyright © 2010 by The SEA Group The service life of a gasfilter is affected by the following: • Substance and its concentration • Volume of air passing through the filter • Humidity and temperature • Storage (the use-by date refers to unopened pack) • Workplace measurements (if possible) are preferable for the calculation of filter service life • Clear warning properties (basic assumption for use of filter protection) • Smell and taste not recommended for use as a regular measurement • Filter replacement policy with good margin Principles for replacing gas filters:
  18. 18. Copyright © 2010 by The SEA Group Particle filter – filtration technology: two methods Electrostatic Mechanical Unable to handle air speeds above 95 litres/min Handles air speeds above 250 litres/min Small filter area means a short service life for the filter Large filter area means a long service life for the filter Electrostatically charged material loses its charge (filtering ability) when it becomes damp Filters equally well in dry and humid environments
  19. 19. Copyright © 2010 by The SEA Group Particle filters Type (AS/NZS1716:2003) Filtration efficiency dry particles wet particles P1 80 % P2 94 % P3 99,95 %
  20. 20. Copyright © 2010 by The SEA Group Sundström particle filter A. Filtering medium B. Hot-melt adhesive C. Label D. Casing E. Sealing gasket
  21. 21. Copyright © 2010 by The SEA Group Particle filters SR 510 and SR 610 • Mechanical filtering • Large filter area (1300 cm2) affords low inhalation resistance and a long service life • Separation level, military standard > 99.997% • Same filter used in half and full facemasks, as well as fan-assisted masks • Pre-filter SR 221 offers good economy • SR 610 with standard thread
  22. 22. Copyright © 2010 by The SEA Group Which particle filter? Class Filtration effeciency Filtering quota Disposable P3 99 % 100/1 = 100 P3 99.95 % 100/0.05 = 2 000 SR 510 P3 99.997 % 100/0.003 = 33 000
  23. 23. Copyright © 2010 by The SEA Group Service life of a particle filter is affected by the following: • Contaminant and its concentration • Speed of air passing through the filter • Humidity and temperature • Storage (the use-by date refers to unopened pack) • Blocked particle filter (or partially blocked – hard to breathe through) • Damaged filter Principles for replacing particle filters:
  24. 24. Copyright © 2010 by The SEA Group Combination filter in two different ways
  25. 25. Copyright © 2010 by The SEA Group Real life
  26. 26. Copyright © 2010 by The SEA Group Leakage through: = Total leakage + Filter + Exhalation valves + Between face & mask Leakage pathways
  27. 27. Copyright © 2010 by The SEA Group Importance of 100 % wear time 0 200 400 600 800 1000 1200 0 min 2,5 min 5 min 10 min 20 min 30 min 40 min 50 min Protectionfactor
  28. 28. Copyright © 2010 by The SEA Group Protection factor & Beards Beards and protection factor 0 200 400 600 800 1000 1200 Clean shaven Stubble Beard < 1% remaining < 10% remaining
  29. 29. Copyright © 2010 by The SEA Group Half facemask/silicone facemask Half facemasks cover nose, mouth and chin Comprising: • Mask body • Inhalation and exhalation valve(s) • Holder for replaceable filter • Head harness
  30. 30. Copyright © 2010 by The SEA Group Half facemask SR 100 • Body and membrane made from silicon • Dual exhalation valves produce low exhalation resistance • Easily adjustable head harness • Simple filter program • Can be connected to compressed air using SR 307
  31. 31. Copyright © 2010 by The SEA Group Sundström half facemask SR 100 1. Body 2. Filter housing 3. Head harness 4. Exhalation valve seat 5. Exhalation membrane 6. Valve cover 7. Inhalation membrane 8. Particle filter 9. Gas filter 10.Pre-filter 11.Pre-filter holder
  32. 32. Copyright © 2010 by The SEA Group SR 100 accessories and spare parts
  33. 33. Copyright © 2010 by The SEA Group Full face masks Full face masks cover eyes, nose, mouth and chin Comprising: • Mask body with inner mask • Visor • Inhalation and exhalation valve(s) • Holder for replaceable filter • Harness
  34. 34. Copyright © 2010 by The SEA Group Full facemask SR 200 • Integrated outer and inner mask • Unique air circulation affords low inhalation resistance • Dual exhalation valves produce low exhalation resistance • Large field of vision • Easily adjustable textile harness • Simple filter program
  35. 35. Copyright © 2010 by The SEA Group Sundström full face mask SR 200 1. Polycarbonate visor 2. Upper frame half 3. Head harness 4a Exhalation membrane 4b Valve cover 4c Inhalation membrane 4d Inhalation membrane 5 Pre-filter holder 6 Filter adapter 7 Grommet 8 Gas filter 9 Particle filter 10 Pre-filter
  36. 36. Copyright © 2010 by The SEA Group SR 200 accessories and spare parts
  37. 37. Copyright © 2010 by The SEA Group Check before use: SR 100 and SR 200 Function check – test disc SR 322 • Visual inspection of the mask and its parts • Fit filter • Place test disc SR 322 in filter holder • Fit pre-filter holder on filter • Place the mask on your face and inhale • The mask must stay on for 5–10 seconds
  38. 38. Copyright © 2010 by The SEA Group Cleaning: SR 100 and SR 200 Daily cleaning • Daily cleaning is to be done using cleaning SR 5226 cleaning wipes • Wipe the inside of the mask • Remove the exhalation membrane and clean the exhalation valves Heavy cleaning • Mask is dishwasher-safe • Use a mild detergent and wash at +40°C • First remove the head harness and membrane • Wash mask and head harness in a laundry bag
  39. 39. Copyright © 2010 by The SEA Group Discussion/Questions?

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