Video clip 2: Air flow through a laboratory fume hood

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PPE Introduction
When developing programs to protect workers, primary emphasis should be placed on engineering controls, such as protective barriers and guards. When these measures are not sufficient to control the risk, the use of personal protective equipment is needed. This video sequence will provide a quick overview of some of the different types of personal protective equipment used in laboratory work settings
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PPE (General)
The key considerations for the selection of personal protective equipment include the characteristics of the hazard to be encountered, the part of the body to be protected, and the limitations of the equipment itself
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Safety glasses & goggles
Take, for example, protective eyewear. Safety spectacles can protect the eye from accelerated particles or splashes, but this type of eyewear may not protect against vapors or gases. Modifications are necessary to protect those who wear prescriptive eyewear, and special consideration must be given to those wearing contact lens as well.
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Gloves
Gloves must also be carefully selected. A particular glove may offer protection against one type of agent, but may not serve as an effective barrier for another. Users should verify compatibility as per the glove manufacturer’s specifications
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Lab coats, tyvex, etc.
Protective garments in the form of lab coats, aprons or jump suits can also be used to protect workers. Proper fit and resistance to liquids are important considerations.
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Respirators – fit testing
A wide variety of respiratory protection devices are available for use. To be effective, workers need to be educated in their proper use and knowledgeable of their use limitations. Respirators with a tight fitting face seal can be fit tested to assess the integrity of the seal established when worn by a worker.
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Adverse Reactions to PPE and appropriate measures
In some instances, workers can exhibit adverse reactions from wearing protective equipment, so consideration must be given to the compatibility of the worker and the protective equipment as well. When afforded a choice, engineering controls are the desired means of worker protection because they do not rely on human intervention once installed. But when such controls are insufficient, personal protective equipment can be used to help protect workers. When relying on protective equipment be sure to become aware of the characteristics of the hazard, identify the part of the body to be protected, and the know limitations of the equipment
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