16. Siberian Husky
The Siberian Husky is known for its striking looks and athleticism, but its dense undercoat sheds profusely—especially during seasonal “blowouts.” This heavy shedding spreads dander throughout the home, making the Husky a challenging breed for allergy sufferers. Regular grooming helps, but for those with allergies, Huskies can still be a significant source of discomfort. [Source: PetMD]