4.25-oz. bottle Its an unmistakable smell those dusty exhaust fumes caused by vacuuming up dirt pet fur and dust. You can try repeatedly changing the bag or just drop in Fresh Wave Vacuum Pearls and eliminate the odor altogetherAvailable in a 4.5 oz bottle Vacuum Pearls are easy to use. Simply add a capful of pearls to your vacuum bag. For bagless vacuums use our Pearl Packs.