This is a very powerful machine, we had a Dyson Ball and a Bisell but this unit beats both of them. Actually we returned the previous two after purchasing this one....
answered 3 years, 7 months ago
While the power of the motor is an important characteristic of a vacuum; “air flow” through the vacuum is actually the critical factor that determines suction power. Any impedance to the air flow through the system causes the vacuum to lose suction power. In a typical “bagged” vacuum, after a few uses the bag becomes a blockage to air flow as it fills with dust and dirt – this slows down and blocks the air flow and consequently the suction power of the vacuum. Similarly, on other “bagless” vacuums, the filter generally becomes clogged with dirt particles and therefore the suction power is lost.
The Shark Navigator Lift-Away features “No Loss of Suction” power because it has been designed to separate dirt particles from the air flow without creating any blockage to that flow of air. There are filters in this model (permanent, washable filters so no replacement filter is required) located underneath the dust bin (when it’s removed), but they are at the end of the air flow cycle – after the dirt has been separated from the air already, the filter in this model is not the primary point of separation of dirt and air and therefore does not become an impedance to the air flow.
In addition to the important “No Loss of Suction” technology, this vacuum also offers other key features including Anti-Allergen Complete Seal Technology (the entire air flow system is closed so as to not allow dirt/dust/allergen particles to escape along the way) and the lightweight Lift-Away canister that allows for easy cleaning of stairs, furniture and other above-floor areas.
answered 3 years, 8 months ago