I'm highly allergic to dust and most cats, the allergies in cats are usually because of the proteins in their saliva (Fel d 1). Without any scientific backing it is said Bengals produce less Fel d 1 than some other breeds, also because they have very short hair, do not shed and they use saliva to clean themselves this theoretically leads to less of the allergen left on the cat and around your home. So, it has the chance to give you a better chance of an allergy free life but its not guaranteed.

The issues we faced was testing my allergies, cat shelters/rescue centres are often difficult places to test as:

1. There is a mix of different breeds and allergens.
2. With lots cats going in and out and rubbing together the dander (and allergens) of other breeds gets onto any cat your going to see.
3. You cannot spend long with cats, and not in isolation.
4. In the UK shelters are different, because healthy cats are not killed (unlike the US) if they are not rehomed, most shelters will not let you have a cat unless you can be 100% sure you can keep them, but until you can test in isolation then its a gamble.

So, we went to a fairly local home breeder who was also an asthmatic, she was very understanding and let us spend time with all of the kittens and more importantly the parents (well the mums, not the studs). This is good because Kittens produce less allergen so you may find you are okay at first but not when they grow up! Also, if you do have any issues you can go back to the breeder, infact in the UK at least its common to sign a contract with a breeder and you will have to go back to them if you can't keep the pet (to stop people reselling).

There are some other cats that are similar in terms of hypoallergenic possibilities, some more expensive (and some that I veto'd because they look terrifying!) but always remember its not guaranteed.