Using long hoses to reach through windows, a petrol or electric engine, and filter bags, Booth invented the vacuum cleaner. He sold the patent to a local leather goods manufacturer, William Henry Hoover. The Hoover company was formed in 1908 and its first vacuum sold for $60. The Hoover Company continued to innovate, with the first beater bar appearing in 1919, and the introduction of disposal filter bags. In the 1920s, Hoover invented the upright vacuum cleaner.

The suction of a vacuum cleaner is the primary method by which it can clean. The air flow slows down when it passes over a larger area than it does when passing over a narrow attachment. This difference in air speed loosens the grip on the dirt particles. Heavy dirt particles and liquid droplets fall out of the air stream and fall into a bucket. A robotic vacuum uses this feature to remove dust from corners and crevices.

Among the various types of vacuum cleaners available, stick vacuums are more suitable for homes with furniture. Their long hose and flexible head enable it to reach under low-level furniture. However, it has the disadvantage of knocking into walls and furniture. Its battery life is also limited. Some stick vacuums are bulky and difficult to store. If space is a concern, a cordless vacuum might be a better choice. There are also robot vacuums that clean by themselves.

The air in a vacuum cleaner passes through a filter. This filter acts like an air filter. The holes in the bag allow air particles to pass through, but are too small to capture the majority of dirt particles. The resulting partial vacuum allows air to push into the vaccum cleaner. They remove the dust from the carpets and other areas of the house. In addition, the bag helps the vacuum cleaner do its job efficiently by collecting debris and removing them from the air.

Compared to conventional upright vacuum cleaners, the DC18 cordless model is the most versatile and affordable choice for most people. The lightweight design of the DC18 cordless vacuum can clean small areas like stairs and between couch cushions. However, it lacks a hose, making it an unsuitable choice for large homes. However, if space is not a constraining factor, the DC18 is a great buy. If space is a concern, you should consider a bagged or bagless vacuum cleaner.

The basic principles of a vacuum cleaner are similar in most types. The fan in a vacuum cleaner creates a negative pressure in the debris collecting enclosure. When this air pressure drops, it pulls the debris and fluid into the bag. The bag then releases the clean air out. This process makes it easier for the cleaner to vacuum up the debris and liquid. A vacuum cleaner has two distinct modes, a manual and a robotic one. However, it's not unusual for both types of vacuum cleaners to have different suction power.