Answer to Question 1
ANS: D
A substerile room adjacent to the OR contains enclosed storage cupboards, a sink, steam sterilizer, a STERIS 1E unit, and a warming cabinet.
Answer to Question 2
ANS: A
A HEPA is a high-efficiency particulate air filter that is effective in controlling airborne contamination. HEPA filters are 99.7 efficient in removing particles that are larger than 0.3 mm. These microbial filters in ducts filter the air and eliminate almost all dust particles.