SOUTH BAY (KGTV) — Some South Bay residents are giving mixed reviews about the air purifiers the County is distributing to combat the odors from the Tijuana River Valley. Other South Bay residents also question the effectiveness of the air purifiers, as no definitive date has been announced for when a permanent solution will be implemented. Imperial Beach residents Baron Partlow and Clint Shipman received one of the newer Orani purifiers from the County a few weeks ago. With the County recommending multiple purifiers to eliminate sewage odors, residents worry about increased electricity costs. The County's Air Pollution Control District announced earlier this week that they've hit a milestone, having distributed a total of 10,000 air purifiers so far.