Is there anybody who isn't relying on these dogs for profit that is saying they're hypoallergenic?
Doggy smell isn't the cause of allergies in humans. It's dander. You can't smell dander (usually). You can have the least smelly dog ever and it can still be sending off a lot of dander.
Maybe the best person to ask is a husky rescue. If they lie about the dogs being allergen-free or even reduced, the dog comes back and has to be rehomed again.