| 摘要 |
A contaminant extraction apparatus, systems and method (10) for extracting contaminants from an air flow (18) so that contaminants are expelled from the embodiments after they are extracted. One method includes the steps of generating two electric fields (Vl, V2) in separate air flow channels (12, 14) separated by an extraction grid (24) with the second electric field (V2) having a greater potential difference than the first electric field (Vl); generating a first air flow (18) through the first air flow channel (12) and a second air flow (20) through the second air flow channel (14); dispensing charged liquid droplets (26) into the first air flow (18) using at least one charged droplet generator (16); allowing the droplets (26) to transfer charge to those contaminants; and expelling the contaminants into the second air flow (20) using the potential difference in the second electric field (V2).
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