Small dust capacities.

In the late 1980s, nearly all vacuums still had a bagged design.These worked fine, but suffered from the suction loss mentioned in the previous section.

The more dirt the bag contained, the worse suction became.. James Dyson decided to try a different approach to solve this issue.Instead of using a bag to “catch” the dirt and dust, he created a bagless cyclone system that spun the dirty air in a circle at high speeds..When air is spun at high speeds, dust is pushed to the edge of the container where it can be filtered or collected.

This replaces the need for a bag to filter the air.. More importantly, it also means that air doesn’t need to pass through all the collected dirt.The result is that suction power doesn’t decrease as the bin fills up (as long as you empty the canister before it’s full.).

James Dyson spent many years perfecting this design, before eventually releasing the DC01 as the first.

Dyson vacuum cleaner.The main differences are in size, noise, and efficiency..

When Booth’s vacuum arrived at a building to be cleaned, the operators used long hoses to suck up dust.The air was passed through a filter, allowing dirt to be collected in the main body of the vacuum.. Cleverly, Booth had included a small window into the chamber, so people passing by could see how much dirt was being collected.

This, combined with the large machine, meant that the vacuum generated free marketing wherever it went..While there was some controversy about the machine – including the noise when in operation – Booth’s vacuum became known as the only vacuum cleaner that really worked.