Personal Protective Equipment Types
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| What is PPE? | Personal Protective Equipment
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| Agencies that require PPE are: | OSHA 29 CFR 1910 and reinforced by EPA 40 CFR 400
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| What is the purpose of PPE? | To protect the wearer from safety and health hazards, and to prevent injury from incorrect use or malfuntion of equipment
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| What is SCBA? | Self-contained breathing apparatus. Air supply comes from a source carried by the user.
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| What is SAR? | Supplied-air respirators. Air source is at a distance and user is connected through an air-line hose.
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| What is the usage time for a SCBA respirator? | Average use is 30 minutes
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| What are the uses for a SCBA respirators? | 1 For escape only and 2) Both entry and escape from hazardous atmosphere
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| What is a escape only SCBA? | SCBA with continuous flow devices with hoods that can be donned
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| There are 2 types of Entry-and-Escape SCBA, what are they? | Open-circuit (air is exhaled into ambient atmosphere), and Closed-circuit (air is recycled by removing carbon dioxide with alkaline scrubber)
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| Positive-Pressure respirators | Maintain positive pressure in facepiece druing both inhalation and exhalation. Positive pressure respirators are recommended for work at hazardous waste sites.
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| Negative-Pressure respirators | Draw air into the facepiece through the negative pressure created by inhalation. DISADVANTAGE is that if a leak develops the user can breathe contaminated air into the facepiece during inhalation.
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| Air purifying devices (3 types) | 1) Particulate filters, 2) cartridges and canister (for specific gases and vapors), and 3) combination devices (cartridges usually attach directly to the respirator facepiece)
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| Level A | Offers highest level of protection both for respiratory and dermal protection when working with EH materials. When working with unknown substances would need: SCBA, fully encapsulated suit with dual protection gloves and boots and two-way communications.
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| Level B | Little/no splash hazard, poor ventilation, low oxygen. Need pressure demand SCBA, chem resistant suit, gloves, boot covers, 2-way communication.
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| Level C | lower level respiratory/dermal protection. Used for working with known airborne contaminants. Would use Air Purifying Respirator (APR) w/ boots, escape mask, 2-way communication.
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| Level D | Little/no respiratory/dermal protection. Used when working in known low level contaminants. Chemical resistant coverall clothing, work gloves, steel toed boots and chemical resistant booties, safety glasses, hard hat, and simple respirator.
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| When undressing PPE, what is the last item to take off? | Gloves
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