How often must a high-efficiency particulate airflow (HEPA) filter be certified?
2 months
4 months
6 months
2 years
6 months
Rationale: Unless they become wet, HEPA filters must be certified every 6 months.
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____ are the blood vessels that carry blood away from the heart.
A. Veins B. Venules C. Arteries D. Capillaries
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NFPA __________ is the standard that covers minimum medical requirements for fire departments
Fill in the blank(s) with correct word
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_____________________ is a deadly virus responsible for causing hemorrhagic fever and causes death in 50–90 percent of all victims
a. Smallpox b. Botulism c. Tabun d. Ebola
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Plasma, the liquid component of blood, is mostly water.
Answer the following statement true (T) or false (F)
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