• Air Pollution
  • Animal Fur
  • At Home
  • At Work
  • Bedding
  • Chemicals
  • Cigar Smoke
  • Cigarette Smoke
  • Clothes-Material
  • Dust Mites
  • Dust/Mold
  • Fecal Material
  • Foods
  • Household cleansers
  • In the Car
  • Indoors
  • Latex
  • Make up
  • Outdoors
  • Parasites
  • Pesticides/Herbicides/Fungicides
  • Plants
  • Pollens
  • Much more (see link below)

Helpful Links and References: