I bought an attachment to my vacuum just for sewing machines. I, too, have a Bernina and it works great. I once used canned air and then I read a thread here about how bad it was for your machine and I was so worried I took it in to be cleaned and afterwards I asked the man how bad it was and he said it was okay and I was soooo thankful. I will never use canned air again. The attachment for the vacuum cleaner is awesome!!!