Here is all the post in one spot. I'll post it in here for one more week before moving it to faq. Here is the original post.
Please note! You can not chose just one thing! Ions are a balancing act.
You want to fill up one side of a scale with a lot more ions then the other!
So the more you chose, the better the ions for you~
TTC a boy + ions:
computers, smoke (not fire), electricity, full moon, sodium, potassium, electric blankets (on the coldest settings), incense, winter, cell phone and hair iron, Air conditioning, gold, TV, microwave, straightening iron box for clothes, Lightening before a storm (not the rain!), heating pads, Magnetic bracelets with both +ve and -ve charge, polluted air, power stations positive ions -living near ones, base stations the ones used for radio stations or tv stations, High tension power lines, furnaces, microwaves, exhaust fumes from vehicles, and fluorescent lighting all generate + ions, x rays, ct scans, cat scans, other medical scans Oils that ionize positively when diffused into the air include: cajeput, clove, cypress, eucalyptus, frankincense, helichrysum, juniper, marjoram, melaleuca (quinquenervia), palmarosa, pine, ravensara, rosemary, thyme, & ylang ylang.
This site lists a ton of positive ion sources - too many to list - http://pages.prodigy.net/unohu/positive.htm#SrcHumid
TTC a girl - ions:
moving air water. beach waterfall...mountains, fire (not smoke), new moon, calcium, magnesium, showers, plants, fish tanks, fountains, fans, summer, asparagus fern, ion hair dryers, and salt rock lamps, small waterfalls in house, ionic air purifier, applied magnets (magnetic north), hematite and rose quartz jewelry, plants in house, negative ion generator, fan blowing when on computer, Neg. ion light bulbs, gaiam personal air purifier--- its an ionizer that you wear around your neck, gaiam car ionizer- plugs into cig lighter, fan with ionizer setting, pine forests , beeswax candles, Brisk walks in fresh air and breezes or rain, amethyst, tourmaline, and smoky quartz ,Onyx and black tourmaline , Sauna, Charcoal rooms and Charcoal baskets, ionized water, anion sanitary pads , moving water of any kind,Facial Steamers, Negative ions are produced naturally by wind and rain. Oils that ionize negatively when diffused include: bergamot, cedarwood, citronella, eucalyptus (citriodora), grapefruit, lavandin, lavender, lemon, lemongrass, mandarin, orange, patchouly, & sandalwood, water heat system.
And this is quite expensive, but it's a gadget that detects negative and positive ions : http://www.negativeiongenerators.com/iondetector.html