My girlfriend and I have suffered from allergies for several months. We both have a post-nasal drip and cough often from it. We use a hepa-vacuum, plastic coated our mattress, have air-cleaners, removed carpets, and did all the common stuff to remove home allergins but are allergies are still there. Our family doctor can’t even figure it out. And ideas??

I’m shopping for a new bagless vacuum. I’m not worried about allergies, but I don’t want dust flying back out of my vacuum. While one that uses a micro-filtratation may be cheaper than one with a HEPA filter, will it meet my need?