First things first, respirators are primarily used to protect individuals – especially workers from any air contaminants especially if there are no other possible or practical methods available to control them.
It is important to know that respirators are only to be used when administrative or engineering controls are technically not feasible, when controls in engineering are currently being repaired or when there are any emergencies or situations that could not be immediately resolved.
Contaminants in the air that contribute as a hazard to ones respiratory health include mists, dusts, gases, fumes as well as atmospheres that are deficient in oxygen.
One way to control such situations is by designing a well maintained ventilation system, appropriate use of equipments for processing, the substitution of materials that are less hazardous.
Also, well controlled administrative procedures that are properly in place help limit the possible exposure of workers in areas that are contaminated. Having work hours that are reduced help prevent further contamination. However, such measures may also prove to be limited since the actual hazards are not...
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