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Types of scavenging system I

Created: 23/11/2004

Charcoal canisters

A canister containing activated charcoal is connected to the outlet of the breathing system and removes halogenated anaesthetics by filtration. It is replaced after every 12 hours of use.


 No set-up cost
 Mobile - moves with the machine


 Continuing cost of replacement. The canisters can be refilled with fresh charcoal, but this tends to be a rather messy undertaking
 Does not remove nitrous oxide
 Heating the canister causes the release of the inhalational agents

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