Many airborne particles can also cause allergic reactions if they're touched. Pollen, for instance, can cause eczema and rashes on the face (especially the cheeks) if you're outdoors during a heavy pollen barrage. Cosmetics, of course, are notorious for wreaking havoc with skin and eyes either by direct contact or from the fragrances they emit.

Clothing, too, can cause both contact and inhalant allergies, due to detergents, factory treatments, bleaches, dyes, dry cleaning processes and so on (See Contact (Skin) Allergies, for more details on cosmetic and clothing allergies).

Dust

Attic	Chalk eraser	Feed mill
Broom	Chicken coop	Rugs
Carpet sweeper	Construction	Toys
Carpeting	Drapers	Vacuum cleaner
Cellar	Dusty books	Wrestling on floor rug or gym mat

Mold and Mildew

Anyplace that harbors water - leaky pipes and faucets, sluggish drains, damp or flooded basements and crawl spaces

Damp towels and clothing	Old mattresses	Refrigerator drips trays and rubber door gaskets
Foam rubber pillows	Old, peeling wallpaper and paste	Roof leaks into attics or behind walls
Hay and grain fields	Overstuffed furniture	Vaporizers
Leather goods	Paint	Vegetable bins
Old caulking around sinks and tubs	Pet litter	Woodpiles
	Poorly vented closets
	Potted plants

Pollen and Flowers

Flowers related to ragweed (golden and chrysanthemums)	Pungent odors of some flowers (roses, violets, lilacs, and others)
Grasses	Trees
	Weeds

Animal Fur and Feathers (Dander)

Animals - dog, cat, bird, horse, rabbit, cow, gerbil, hamster, hog, sheep, goat (mohair) and others

Feather pillows Visit to zoo, circus or farm Wool blankets

Fumes

Asphalt and tar (roof applications, hot roadways)	Fuel oil	Lubricating grease and oil
Auto exhaust	Garages	Machinery
Bus stations	Gas appliances	Motor boat exhaust
Chlorinated swimming pools	Kerosene	Naphtha
Dry cleaning fluids	Lighter fluid	Oil furnace
		Refrineries

Household Odors

Ammonia	Disinfectants	Plastics (soft)
Bleaches	Dyes	Magazines
Bubble bath	Fabrics (wash & wear)	Moth balls and crystals
Cedar bags	Floor wax	Newspapers
Chalk	Furniture polish	Room deodorants
Cleaners (especially those containing carbon tetrachloride)	Glue	Scouring powder
Sandpaper	Insect sprays	Shoe polish
Detergents	Paper tissue	Soaps (powder and bar)
	Particle board	Starch
	Perfumes	Window cleaner

Paint Odors

Enamel	Mineral spirits	Rubber-based	Stains
Lacquer	Oil paint	Shellac	Thinner
Latex paint	Paint remover	Spray paint	Varnish

Smoke

Charcoal	Coal	Leaf fire	Trash fire
Cigar	Fireplace	Pipe	Wood fire
Cigarette	Incense	Tobacco

Woods Smells

Evergreen (including Christmas trees)	Lumber	Sawdust
	Sanding dust

Cosmetics and First Aid Product

After-shave lotions	Hair removers (depilatories)	Perfumes
Antiseptics	Hair sprays	Powders
Astringents	Hair waving lotions	Rouge and blushers
Cold creams	Lipsticks	Rubbing alcohol
Colognes	Lotions	Sachets
Deodorants	Mascara	Shampoos
Eye shadows and pencils	Mouthwashes	Shaving creams
Face creams	Nail polish	Tanning creams
Face powders	Nail polish remover

Office and Industry

Asphalt	Marking pens	Rubber goods (tires, sheeting, hose, etc)
Carbon paper	Metal shops	Smoke
Carpeting	Mill dust	Stencils
Correction fluid	Paints	Sulfuric acid and hydrochloric acid fumes
Duplicators	Paper	Tar
Felt-tip markers	Perfumes	Typewritter pads
Formaldehyde	Photocopier	Typewritter ribbon
Fumes from galvanizing plant	Photographic materials	Warehouse dusts
Ink	Plastics

Food Smells

Beans	Fish, shrimp	Spices
Beer	Flour	Starch
Coffee	Frying odor	Vinegar
Egg	Onion