Charger

With any air particle filter one can use an air Ion and/or Ozone generator to charge the air making the particle filer action more effective. Several years back I picked up a surplus 5K Volt DC transformer-rectifier for about $20. One can use anything from 5-10K Volts DC. Make sure it will work if shorted out for a time and you can ground the positive without causing extra current flow that could burn it out.

Offered by Mike.