. >> we have a gordon setter, and this makes life so much easier. >> announcer: here's a dirty little other vacuums don't want you to know. the truth is, a hepa filter is only as good as the vacuum around it. and if your vacuum doesn't have a system that's completely sealed, dust and allergens escape back into the air before they even reach the hepa filter. you can't see it, but you can actually smell those impurities as you vacuum. that's why the shark rotator lift-away, like higher-priced vacuums such as miele and dyson, combine a hepa filter with a system that's completely sealed, the scientifically proven way to reduce exposure to allergens. in fact, the shark rotator lift-away's anti-allergen complete seal technology locks in 99.99% of dust and allergens, keeping them in the vacuum and out of the air you breathe, making the rotator an absolute must-have in homes with allergy and asthma sufferers, young children, or pets. >> the complete seal technology was important to me because i have severe allergies to dog dander. the shark has been a big help to us because whatever we vacuum