See also our article on Efficiency of Paper Bags. Duct Cleaning Equipment Free Information Dust Collection Systems 
Introducing a full range of solutions. 
Save time and money. By shopping here you can be sure that you are getting exactly what you want, guaranteed. Comments:
Inertia The tendency of matter to remain stationary if not moving or to keep moving in the same direction if not stationary. This is done in the construction of the armatures and fields used in vacuumed and cleaned motors. Manufacturers who use Certified filters tend to consider any non-certified filter to be a " Type" filter. It is essentually the same as the specification which states that a filter must be capable of capturing 99.
See also our article on the Suction Motor Design & Operation. Micron A unit of measure equal to 1/1,000,000 meter (about 1/25,000 inch). Typically the electrical power is transferred from the household electrical outlet to the electric motor where it is converted to mechanical power. For more information, see our article on Fan or Impeller Types & Performance.
The phrase "as small as" means that if all particles were that small, it would still have that efficiency. An upright with this design can also be said to use the Traditional Upright Design since most uprights used this design since their inception. This enhances flow and extends the filter media's effective life span. Central A stationary type of canister vacuumed and cleaned which is usually mounted in the basement or garage.
Usually rated as amperage (amps). Beater Bar A long rigid bar or raised area on a revolving brush roll which pushes the carpet away from the roll, creating a rapid beating action. Please see also "Can or S-Class Filtered Household Vacuums Safely Retain Anthrax?" for an answer to this important question. See also our articles on Fan or Impeller Types & Performance and the "Clean-" Upright type of vacuumed and cleaned.
See also our article on External Structure Materials & Durability Power Relative to vacuuming cleaned devices, the physical or mechanical force or energy that is applied to the load. Paper Bag The paper bag in a vacuumed and cleaned consists of an special paper enclosure into which the dirt and are directed as part of the filtering. This rating has nothing to do with power ratings nor cleaned performance since all Hoover WindTunnel uprights are rated at 12 Amps.
Everything about Dust Collection. Dual edge brushing (both sides) can be obtained by running the belt either in the center of the roll or a few inches from one end instead of at the very end of the roll.