RESPIRATORY RISK AND RESPIRATORY PROTECTION |
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The respiratory protective devices are III category PPE, due to high risk of death in case of contamination of the respiratory tract. Indeed, the serious damages caused by the inhalation of harmful and toxic substances make the respiratory risk one of the highest risks to human health and safety. |
RESPIRATORY PROTECTIVE EQUIPMENT - CRITERIA FOR THE CHOICE |
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During any activity in which respiratory conditions are abnormal and in which there is a high respiratory risk, it is necessary to protect oneself by using an appropriate respirator, which must be chosen according to conditions of the air and the quantity of oxygen and contaminants in it. |
AIR COMPOSITION | RESPIRATORY PROTECTIVE EQUIPMENT | ||
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Oxygen(O2) >17% |
FILTERING DEVICES |
COFRA DEVICES
GASES, VAPOURS, DUSTS, SMOKES
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Oxygen(O2) |
INSULATING RESPIRATORY EQUIPMENT |
TLV AND CLASSIFICATION OF CONTAMINANTS |
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The TLV is the value that indicates the threshold limit concentration of dangerous substances to which a worker can be exposed without adverse effects to health (prolonged exposure up to a work shift). Listed here below the different types of hazardous contaminants to human health: dusts: little solid particles suspended in the air deriving from the crushing of solid material. Example: milling, grinding, smoothing and abrasive processes; |