Full Face Quick Don Mask (HU-25)

Question 1

Mask assemblies and operating procedures

Answer 1

1. 72.5 psi is supplied
2. can be donned single handedly in 5 seconds
3. operating temp 4-140 degrees F
4. operating pressure 60/25 psi
5. max flow rate 120 L/min
6. max operating altitude 40,000ft
7. 5 sub assemblies

M13520.1C 5-18

Question 2

Preventative maintenance is limited to what

Answer 2

Replacement of the face plate, protective strip, cleaning, and disinfecting the subassemblies

CGTO PG-85-00-310A P. 5-8

Question 3

The mask is used for both respiratory and eye protection. It is supplied with oxygen at a rated pressure of ___ psig.

Answer 3

72.5 psig

M13520.1C 5-18

Question 4

How can the mask be donned

Answer 4

Singled handed in less than 5 seconds

M13520.1C 5-18

Question 5

What is the anti-mist condenser made of

Answer 5

Aluminum alloy

M13520.1C 5-20

Question 6

What does the test and emergency knob on the regulator subassembly do

Answer 6

1. functional test of the regulator when depressed
2. delivery of positive safety pressure at any altitude when turned clockwise

M13520.1C 5-21

Question 7

What minor repairs are authorized

Answer 7

The ICS connection plug only

CGTO PG-85-00-310A P. 5-8