What are bagless vacuum cleaners?

Bagless vacuum cleaners exist in various forms and shapes. The one that immediately comes to mind is the smaller kind that is also referred to as handheld vacuum cleaners that became popular in the 80s.

These vacuums purpose is mainly to collect debris in the kitchen, larger particles, and they are not fitted with a bag. The particles are filtered through a fixed filter and when the bin is emptied the filter also needs to be cleaned.

The other type of bag less vacuum cleaner is the cyclonic vacuum cleaner where the rotating air flow collects the dust in a canister with various results.