Respiratory Protection
Where persons are or may
be exposed, on a temporary or emergency basis, to an oxygen deficient
atmosphere or to harmful concentrations of air contaminants (i.e. gas,
vapours, dusts or fumes), they must wear protective respiratory
equipment. Persons required to wear such equipment must be adequately
trained in the selection, care, use and maintenance of this equipment.
Protective
respiratory equipment shall meet acceptable standards prepared by
either the Canadian Standards Association (CSA), the Mine Safety and
Health Administration (MSHA) or the National Institute for Occupational
Safety and Health (NIOSH).
Respiratory protective equipment
shall be selected so as to be appropriate to the hazards to which the
workers are being exposed (Table 5 provides some guidelines). The
selection of the correct and appropriate type of respirator for each
job shall be done only by a qualified person experienced in the use of
such equipment. When in doubt, contact the Occupational Health and
Safety Department for guidance.
Every worker who is required
to use respiratory protective equipment shall receive adequate pre-job
instruction by a qualified person to ensure that they understand the
correct and appropriate uses for the device, its limitations and
maintenance requirements. Such training is available from the
Occupational Health and Safety Department upon request.
Respiratory Protective Equipment
| Hazard |
Condition |
Respirator Type |
Oxygen Deficiency (<18 %) |
Immediately Dangerous to Life or Health (IDLH) |
Self-contained breathing apparatus (SCBA).
Hose mask with blower.
Combination air-line respirator with auxiliary self-contained air supply or an air-storage receiver with alarm. |
| Gas and Vapour Contaminants |
Immediately Dangerous to Life or Health (IDLH) |
Self-contained breathing apparatus (SCBA).
Hose mask with blower.
Air-purifying, full facepiece respirator with chemical canister (gas mask).
Self-rescue mouthpiece respirator (for escape only).
Combination air-line respirator with auxiliary self-contained air supply or an air-storage receiver with alarm. |
| Gas and Vapour Contaminants |
Not immediately dangerous to life or health |
Air-line respirator.
Hose mask without blower.
Air-purifying, half-mask or mouthpiece respirator with chemical cartridge. |
| Particulate Contaminants (dusts, fumes, etc). |
Immediately Dangerous to Life or Health (IDLH) |
Self-contained breathing apparatus (SCBA).
Hose mask with blower.
Air-purifying, full facepiece respirator with appropriate filter.
Self-rescue mouthpiece respirator (for escape only).
Combination air-line respirator with auxiliary self-contained air supply or an air-storage receiver with alarm. |
| Particulate Contaminants (dusts, fumes, etc). |
Not immediately dangerous to life or health |
Air-purifying, half-mask or mouthpiece respirator with filter pad or cartridge. Air-line respirator. Air-line abrasive-blasting respirator. Hose mask without blower. |
| Combination of gas, vapour and particulate contaminants |
Immediately Dangerous to Life or Health (IDLH) |
Self-contained breathing apparatus (SCBA).
Hose mask with blower.
Air-purifying, full facepiece respirator with chemical canister and appropriate filter (gas mask and filter).
Self-rescue mouthpiece respirator (for escape only).
Combination air-line respirator with auxiliary self-contained air supply or an air-storage receiver with alarm. |
| Combination of gas, vapour and particulate contaminants |
Not immediately dangerous to life or health |
Air-line respirator.
Hose mask without blower.
Air-purifying, half-mask or mouthpiece respirator with chemical cartridge and appropriate filter. |
| Dusts (<0.05 mg/m3) |
Not dangerous to life or health (irritants) |
Dust mask filter pad style respirator meeting NIOSH/MSHA Approval No. TC-21C-132 |
Persons
required to use a respiratory protective devices shall be clean shaven
at the point where the respirator contacts with the wearer's face. Each
respirator shall be fit tested by a qualified member of the
Occupational Health and Safety Department or trained designate, to
ensure that a proper seal has been established between the respirator
and person's face.
All respiratory protective equipment
shall be maintained in good working order and in a sanitary condition.
Respirators are considered as individual pieces of personal equipment
and for hygienic reasons shall not be shared with any other persons.
Respirators shall be clearly identified as to the owner.
Respiratory
equipment shall be stored in a sanitary storage container in a
suitable, convenient, storage area where it will not become
contaminated by any airborne substances and protected from dust,
sunlight, heat, extreme cold, and excessive moisture. Unprotected
respirators may sustain hidden damage or facepiece distortion that
would make them ineffective. Cartridges should be stored in a suitable
package or container (i.e. zip-lock bag) separate from the face piece.
Whenever
people are working in areas where an oxygen deficient atmosphere or
harmful concentrations of air contaminants exists or is likely to
develop, sufficient personnel who are trained in rescue procedures must
be immediately available. The trained rescue personnel shall have
immediate access to appropriate self- contained breathing apparatus or
other equipment necessary to effect any rescue.
Supervisors
shall ensure that a regular schedule be established for the purpose of
cleaning and disinfecting, providing fit testing and adjustment checks
of any respiratory equipment.
Self-contained breathing
apparatus (SCBA) shall be of an acceptable type meeting the current
requirements of the Workers' Compensation Board Regulations.
Self-contained breathing apparatus (SCBA) shall only be serviced and
maintained by a fully qualified service agency at least once a year.
Detailed records pertaining to service and repairs for each
self-contained breathing unit shall be maintained on a regular and
consistent basis by the Occupational Health and Safety Department.
Where
compressed air is supplied by either an air-line system or from self
contained breathing apparatus for breathing purposes, the quality of
the air shall meet the requirements of CSA Standard Z180.1 or
equivalent. The Occupational Health and Safety Department shall be
responsible for ensuring the quality of the respirable air through
proper testing.