Preflight AFT Cabin facing lavatory Wall A/C L?

Question 1

How do you preflight Halon fire Extinguisher (1)?

Answer 1

Secure, safety wire intact, gauge in green, inspection date

Question 2

How do you preflight Portable Oxygen Bottle (POB) (1)?

Answer 2

secure, 1500 psi min @70F, additional mask, inspection date, HI valve mask/tubing

Question 3

How do you preflight protective Breathing Equipment (PBE) (1)?

Answer 3

Secure, seal, yellow indicator, inspection date