I've been using regular Y-bags from the store for many years and have always disliked what I call the 'vacuum cleaner smell' that comes off after vacuuming. I just kept thinking that regular bags at least capture most of the particles. Now that I seem to be more sensitive to allergens, I decided it was time to look for a better alternative. I found and bought these. All I can say is it's incredible. After cleaning it doesn't smell at all. I should have spent and used the extra money years ago. Highly recommended.