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Almost all positive (“+”) natural ions during fair weather come from radioactivity. Natural negative ions usually come from radioactivity and evaporating water. Air ions cannot be produced without an energy source, such as heat or flame, radioactivity, frictional rubbing, electricity, evaporation (which is a heat process), etc. You can produce negative ions directly by rubbing cotton fabric (or your hair) against a plastic object, which will then briefly emit negative ions.

    AlphaLab AIC2-R0 Air Ion Counter +/- Air Ions Densities with Protection Case, Single-Range: 2 million / 10 (ions/cc)

    Quality Air Ion Counter measures the number of positive and negative ion in air.

    SG$1,990.00
    Backorder in 1 to 2 weeks
    Add To Cartmore info
    AlphaLab AIC2-R1 Air Ion Counter  +/- Air Ions Densities with Protection Case, Dual-Range: 2 million /10 (ions/cc), 200 million /100 (ions/cc)

    Quality Air Ion Counter measures the number of positive and negative ion in air.

    SG$2,290.00
    Stock available
    Add To Cartmore info
    AlphaLab AIC Air Ion Counter Meter Reading +/- Air Ions Densities

    Quality Air Ion Counter measures the number of positive and negative ion in air.

    SG$1,280.00
    Backorder in 2 weeks
    more info