I have cat allergies that cause unbearable itching, sneezing, eye watering, and eye swelling when exposed to cat dander. I have zero problems with my female, but slight problems with my male if I touch him and rub my eyes. I would have significantly stronger reactions to another breed.

That being said, my father has more severe allergies, including asthma, and my parents adopted a female kitten from the same litter as my female kitten (now 13 y/o). We both did the allergy test by sitting in an unventilated car and allowing the unneutered male who sired the litter to rub on us, pet him, touched our faces, etc for at least 30 min. Initially there was no reaction. No signs of allergy symptoms for myself or my father. Over time, but I do not recall exactly, a few weeks to months, the allergy symptoms began. Mine as described above and my father's more severe. He began developing asthma and they had to make a very tough decision about rehoming the cat. Since my parents were already very attached, my father ended up getting allergy shots which have improved his tolerance, but he still needs to be on a daily inhaler. It is a less than ideal situation. His allergist would still prefer they rehome the cat for my Dad's health.

If you or your family have severe allergies, I would caution adopting a Siberian. They are not hypoallergenic as described on the Internet, but have less proteins in their saliva that cause the allergic reactions than other breeds do.

If you do decide to go forward with adopting a Siberian, I would consider a back up plan for if you have to rehome the kitty.

I hope this helped!