Household pets are the most common source of allergic reactions to humans. Many people think that pet allergy is provoked by the fur of dogs, but researchers have found that the major allergens are proteins secreted by oil glands in the animals' skin and constantly shed in dander, as well as proteins in the saliva, which sticks to the fur when the animal licks itself. When the substance carrying the proteins dries, the proteins can then float into the air.

Older animals produce more dander than young ones because their skin is drier. Animal dander is extremely light weight and tiny in size and can stay airborne for hours.

Dander Free for Dogs provides natural control for dander on dogs known to cause human allergies.