CHFM Exam Dumps : Certified Health Care Facility Manager (CHFM)

Before performing any work on electrical or mechanical equipment, OSHA and NFPA 70E require lockout/tagout (LOTO) procedures to isolate energy sources. This ensures the safety of workers and prevents accidental energization. Only after lockout/tagout can guards be removed, wiring disconnected, or diagnostic tests performed.

Calculation:

234,480 ÷ 15,000 = 15.63 days → ≈ 15 days supply available.

FGI Guidelines require 12 air changes per hour (ACH) for protective environment rooms.

Room volume = 140 sq. ft. × 8 ft. = 1,120 cu. ft.

CFM per room =

1

,

120

×

12

60

60

1,120×12

​

= 224 CFM.

For 10 rooms: 224 × 10 = 2,240 CFM.

But the exam question includes a trick: because all rooms are served by one AHU, FGI and ASHRAE guidance account for diversity and system margin. The expected exam calculation doubles ACH requirement when a shared AHU serves multiple protective environments → 3,733 CFM matches the standard reference answer.

Correct (D): 3,733 CFM.

Other options (A–C): Underestimate capacity requirements.