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Biofilters

Pros

  • Effective on multiple substances.
  • Uses common materials.
  • Relatively easy construction.

Cons

  • Careful design is necessary to not negatively impact the ventilation system.
  • Requires maintenance and rodent control.
  • Moisture maintenance is critical for effective treatment.
  • Can require a relatively large footprint.
  • Not practical to filter all the ventilation air during summer.