I got asthma, and my daughter got asthma and eczema. My daughter don't have any allergy reaction but for myself at the beginning when I brush him my skin feel itch, nose feel itch too. But now I wear mask when I comb him and shower right after to stop the allergy reaction.
It depends on what your allergies are, if it is dog hair, be warned, they shed a lot, if it is outdoor elements, don't leave the dog out, or brush well before bringing in.
I know of at least one person who has allergic reactions after any prolonged contact with my Berner. Definitely not a hypoallergenic dog.