Advantages of using compressed O2 cylinders in the home include which of the following? 1. Minimal waste or loss 2. Unlimited storage time 3. Widespread availability 4. Minimal user hazards

a. 1, 2, and 3 only
b. 2 and 4 only
c. 1, 2, 3, and 4
d. 1, 2, and 4 only


ANS: A
Table 56-3 summarizes the major advantages and disadvantages of each system.

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