Scavenging & Pollution Control Flashcards

1
Q

Advantages of active scavenging (4)

A

Most reliable
Efficient
Low running cost
Allows for N2O use

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2
Q

Disadvantages of active scavenging (2)

A

Vacuum piping system expensive

Requires regular maintenance

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3
Q

Advantages of passive scavenging (3)

A

Simple to operate
No suction required
Inexpensive to set up

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4
Q

Disadvantages of passive scavenging (3)

A

Inefficient

  • relies on resp. Effort
  • affected by tubing resistance and wind conditions

Impractical in some buildings
Increased risk of leaks in comparison to active

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5
Q

Advantages of charcoal canisters (2)

A

Not set up cost

Mobile

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6
Q

Disadvantages of charcoal canisters (6)

A
Does not remove N2O
Increases circuit resistance
Not shut off when full
Must be weighed frequently
Continued cost of replacement
Heating canister causes release of volatile agents
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