How effective are Hepa filters if I have allergies?

How effective are Hepa filters if I have allergies?

Harold Kaiser (Practicing Allergist and Clinical Professor of Medicine, University of Minnesota Medical School) gives expert video advice on: What questions should I ask my doctor after getting an allergy diagnosis?; How soon will I start to feel better after taking allergy medication?; Can I be cured of my allergies? and more...

HEPA filters are effective in cleaning the dust out of the environment. They help some people enormously; they don't help other people at all. At a minimum, they make a house or the room less dusty; they make it cleaner. It helps you have a more pleasant place to live and to breathe. So my recommendation is that, if patients can afford them, put HEPA filters on their furnace and use them. There are no promises on whether they will cure your allergies or not. They are, again, helpful, but not a cure-all.