| 摘要 |
According to the invention there is provided a method of reducing microbial levels in the interior of a building, including vaporizing an anti-microbial essential oil to produce vaporized anti-microbial essential oil, entraining the vaporized anti-microbial essential oil in an air stream, and directing the air stream into the air ducts of the building and then into an interior air supply of the building.
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