Bipolar needlepoint ionization reproduces the ions that are found in nature though a process using a plasma generator to flood the air space with millions of negative and positive ions. The process causes particles to bond together allowing them to be trapped by filtration or fall from the air space. The ions are also germicidal! Contact with bacteria in the air and on surfaces destroys their membranes and therefore disinfecting the air and surfaces. The electrical charges cause the molecules of common household odors to be neutralized or broken up leaving the air fresh and clean smelling, that same freshness you notice around a waterfall, one of natures own ion generators.

Blue Shield ionizers durability and reliability is backed up by an industry leading 5 year warranty!

These ionizers are designed to be installed in an HVAC air handler in one of two locations:

  1.  Before the filters: for Maximum particle reduction.
  2. After the coil, in the supply area: For maximum ion distribution into the occupied area.


  • For up to 6 tons of 2400 CFM
  • 24 Volt
  • Mounts internally or externally
  • Magnet mounting option included
  • Emitters pivot for mounting externally
  • 320 million ions / cc
  • 5 year warranty
  • Durable metal casing
  • LED indicator light
  • UV light compatible

Model i-15

  • For up to 15 tons or 6000 CFM
  • 24 Volt or 120 volt to 277 volt
  • Includes transformer
  • Mounts internally or externally
  • Includes magnet mounting option
  • Emitter pivot 90 degree for external mounting
  • 640 million ions / cc
  • 5 year warranty
  • Durable metal housing
  • Compatible with UV lights
  • Building controls sensors available


The bactericidal effect of an ionizer