Bagless Upright Vacuum Cleaners – What You See in the Dust Bin Will Make a Bagless Believer Out of You
By Boozam

Bagless upright vacuum cleaners are perfect for avoiding the hassle of changing a disposable vacuum bag. It is essential to empty the dust bin when it is full. The dust bin is clear in color and made from durable plastic.

In bagless upright vacuum cleaners, because the dust bin is made out of clear plastic, with the ability of being able to see when its time to empty the dust bin, in comparison to the bag vacuum, the bagless vacuum cleaner will have more power and better airflow.

The bagless dust bin also requires cleaning, and in addition, from time to time, most bagless upright vacuum cleaners have filters that require replacement in order to prevent any accumulation of dirt and dust in the motor. Depending on the make and model of the bagless vacuum, the manufacturers’ requirements will delineate whether or not the filter needs to be cleaned or replaced.

Bagless upright vacuum cleaners are especially intended for vacuuming “wall-to-wall” carpets. They are not meant for use on floors (although there are a few models that are available on the market) since they operate by using a rotating brush which sweeps into the fabric of the carpet ...... (to be continued on next paragraph)

Interesting article on bagless upright vacuum cleaners:
Hepa Vacuum Cleaners for Dust Free Homes or Offices
By Boozam

Hepa vacuum cleaners are in great demand in homes and offices, which need highly, dust free environments. Hepa vacuum cleaners are fitted with HEPA or High Efficiency Particulate Air filters, Read more...

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(continued)...... and carries away trapped dirt and dust.

Bagless upright vacuum cleaners use an dirt/air separation technique.

What are “Filtered Cyclonic” Bagless Upright Vacuum Cleaners?

Most bagless upright vacuum cleaners are the “Filtered Cyclonic” style. This style uses a method of directing a specific air current in order to rotate the vacuumed dirt and dust into a cylinder. The larger dust and dirt particles are then shoved against the cylinder wall and are then dropped into the dust bin. The smaller particles remain in the center of the cylinder and because of the nature of the air current, they find their way into the filter. 

What are “Dirt Cup” Bagless Upright Vacuum Cleaners?

In the “Dirt Cup” version of the bagless vacuum, dust and dirt build up and collect on the inner wall of a dirt chamber into cloth bag (sometimes a HEPA filter). Many of the filters on the market today can be washed with ordinary dish soap and re-used. The filters are essential to catch any small dirt or dust particles. After the particles cake together, as a result of the movement during vacuuming, the wad of debris falls into the “dirt cup”.