Hi K.:
I've got all kinds of advice for you LOL! Re: an hyperallergenic flooring, your best bet is cork. I happen to have Westhollow Cork flooring in my home but I'm not indicating an endorsement for any particular brand. Below is a blog about it that might interest you. Additionally, you and your family do not have to suffer from the symptoms of allergies, as they can now be cured through a combination of eastern and western medicine. The technique is referred to as NAET and there are over 6000 certified naet practitioners world wide. My doctor (naet certified) has relieved me, as well as 2 of my grandchildren, from many allergies. His name is Dr. David Karaba and he operates out of East West Medical Group in Fullerton, in case you would like to talk with him about this.
Best wishes,
M.
Cork:
"Cork is the most uncomplicated, natural, comforting flooring product sold today. Cork has been used for floors for many, many years, and is one of the most versatile and attractive flooring materials available today. Cork is perfect for many rooms in the home including kitchens and family rooms. Westhollow cork is beautiful in many moderate commercial settings. It's natural, simple and soothing.
Natural, random appearance creates an elegant, natural look
Reduces noise
Comfortable under foot and on your knees
High resiliency
Insulates against heat and cold
Low thermal conductivity
Highly resistance to moisture and liquid penetration
Ability to absorb vibration
Cork floors are hypoallergenic
Cork is an all-natural product derived from the bark of the cork tree. And in these days of increasing concern for the environment, cork remains the only tree whose bark can regenerate itself after harvest, leaving the tree unharmed. Cork trees are a variety of the oak tree that re-grows their bark every 6 years, resulting in an all-natural, environmentally responsible product with exceptional physical properties and a minimum impact on the environment.
Cork, as a natural product, warms and enriches any interior. Cork flooring always blends in well with other decorations and furniture, and comes in a wide range of colors - from its familiar honey tones to green, red, chocolate and black. Cork is tough, resilient and water resistant. It absorbs sound and provides acoustical excellence. Being highly abrasion resistant, these floors are often also used in public buildings including schools, hospitals, restaurants, hotels, shops and offices."