Indoor Air sciences CSMI Practice Exam

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Prepare for the Indoor Air Sciences CSMI Exam with our comprehensive study guide. Learn through engaging flashcards and multiple-choice questions, complete with hints and detailed explanations. Get exam-ready and tackle your test with confidence!

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Before shutting down an air filtration device, what should you do?

Vacuum the surface
Spray it with a biocide
Wipe down the surface
Seal the air intake side

The correct answer is: Seal the air intake side

Shutting down an air filtration device requires careful handling to ensure that contaminants do not escape back into the environment. Sealing the air intake side is a crucial step to prevent dust, allergens, or other particulates from re-entering the area while the device is being serviced or replaced. This action effectively minimizes the risk of airborne contaminants spreading during the shutdown process. While other options may seem beneficial, they do not specifically address the primary concern of containing particulates during shutdown. Vacuuming the surface or wiping it down can help clean the unit, but they do not prevent the movement of particles that could occur when the unit is disengaged. Spraying with a biocide could potentially introduce chemicals into the air, which is counterproductive to the goal of maintaining clean air. Therefore, sealing the air intake is the best practice when shutting down an air filtration device.