I can understand your situation and for me it was really hard to manage the dust during my home renovation. I do have dust allergy too. During that time I went through a blog that provided few tips to keep the dust down. It worked for me and I am happy to list these tips.Hope this helps you Clear Out Surrounding Rooms and Cover Everything Protect Everything (Including Registers) Contain the Dust: Seal off other Doorways Mount a Fan to a Window. Do Dust Generating Work Outside Sweep and Vacuum at the end of Each Day. Source: http://www.gorillabins.ca/blog/6-tips-to-reduce-dust-during-renovation/