How much watt of vacuum cleaners should be bought?

vacuum cleaners

Vacuum cleaners have made our life simpler and allowed us to work more productively. But we often struggle to afford a good vacuum cleaner, and some people buy the incorrect one.

So, what makes a good vacuum? What are the vacuum cleaner specs? What is a decent vacuum’s wattage? We know you may have a lot of questions, which is why we are here.

Car Vacuums

Car vacuums are portable and operate on your car’s battery. As a result, they are designed to run on 100 watts or 8-10 amps of electricity. Some types have larger wattages, although they frequently utilize internal batteries rather than external ones.

car vacuum

Household Vacuums

A 30-minute vacuuming session uses 700 watts, or 1400 watts a day. 

But the more powerful, high-quality model consumes more electricity. There are several low-power devices that only use 500 watts every session or roughly 1200 watts per day of electrical consumption.

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Industrial vacuums resemble residential vacuums but have more suction. As a result, these vacuums need at least 1400 watts of 12 amp power watts of electricity to function.

You may also like to read: Why does my Bissell vacuum make a loud noise?

Some modern types may use less energy, but no shop vac can run on less than 1000 watts and will result in vacuum cleaner performance running in fewer watts.

Cordless Vacuums

Cordless vacuums only use their rechargeable batteries. As a result, most of these models are low-power. Their rechargers, though, set them unique.

Some rechargers need as much energy as a typical vacuum, with larger batteries requiring more.

Understanding Vacuum Cleaner Basics

An investment in a type of vacuum cleaner, so knowing the basics and their importance will help you choose the correct one. In this part, we will go through the specifications that determine the product’s quality and performance.

Breeze (CFM)

Airflow is a vital measurement that shows the power of airflow from the surface to the vacuum cleaner bag.

The air breathed in a minute determines it. A vacuum cleaner’s airflow is measured in cubic feet.

Airflow is a crucial parameter that isn’t listed in over 50% of vacuum cleaner specs. This dimension determines the exhaust resistance and the motor power. Suction power equals CFM. Cleaning machines usually have 50-100 CFM for better cleaning performance.


Watts (AW)

Like CFM, Air Watts is a way of measuring suction power. Air Watts is the Watts utilized by the vacuum cleaner to push air through its aperture. The entrance is usually the vacuum cleaner’s nozzle. Air Watts is a more consistent measurement and has the following formula:

0.117254 x CFM x Water lift

A decent vacuum cleaner needs at least 100 Air Watts to pick up dirt and a canister vacuum cleaner needs at least 220 Air Watts to be efficient. Canister vacuum cleaners use more vacuum airflow to pull trash.

Any vacuum cleaner with a good filtering system requires more AW. This is because vacuum cleaners with effective filtration systems suck air through the filter fibers.

A water lift is another effective suction test. A tube connects the device and tests this. The more water in the tube, the more suction power. Manufacturers commonly write Watts on vacuum cleaners. Watts refers to the vacuum motor power consumption and has nothing to do with product performance.

Simply, a vacuum cleaner with more watts has a more efficient and powerful engine, sucking better. It is not always true, and this has led to various controversies.


Amps are defined similarly to Watts. Amps could relate to vacuum cleaner power usage. So, the more the vacuum cleaner consumes Amps, the better its efficiency and suction power.

However, manufacturers provide the unit’s total Amp value. This indicates the Amp value includes the LED lights and the brush roll.

Any appliance may use up to 12 amps. If a unit’s amperage is 12, the head nozzle draws 1.5 Amps and the LED lights draw 0.5 Amps, the actual motor amperage is 10.5.

The vacuum cleaner’s first variable is the motor fan.

Then the engine. T

The engine spins at a high speed, which varies across models. Ensuing airflow swiftly empties the vacuum cleaner’s base.

The suction then suctions all the trash, dust, grime, and other particles from the front base.

Finally, the air is filtered and cleaned using HEPA. Then the bin is emptied.

Considering these considerations, it is evident that you must know your vacuum’s wattage.


Noise is another important factor. Some vacuum cleaners are so loud that using them is painful. A good vacuum cleaner will typically work at levels that are pleasant to hear the phone or doorbell ring.

A vacuum’s operational noise is measured in decibels (dB). A typical house conversation is 50dB, a trash disposal is 80dB, and a motorbike or lawnmower is 100dB. Extremely silent vacuum cleaners may reach decibel levels in the mid-sixties, while cleaners in the 70-77 dB range are still extremely quiet.


What does high suction power mean?

Many individuals have trouble distinguishing between high and low suction units.

Switch your vacuum cleaner to carpet mode to test its suction strength. After that, just turn it on and let it run at full speed.

To test your vacuum’s suction power, mount the floorhead to the wall. A vacuum with strong suction may attach to the wall without any additional support.

How strong is a vacuum’s suction?

A commercial vacuum cleaner’s peak suction power is 200 CFM. This suction power was reached without a vacuum head, and the lowest suction power in a household vacuum cleaner is roughly 45 CFM.

Do canisters have more suction than uprights?

The most common vacuum cleaner is a canister. Canisters are quite popular and powerful compared to other sorts. So, yes. Canisters offer more suction power than upright types.

What are the drawbacks of a powerful suction vacuum?

Every aspect has benefits and drawbacks. High suction vacuum cleaners are effective, but they have certain drawbacks. While a powerful suction vacuum cleaner has many advantages, it also has disadvantages. It uses more electricity, is louder, and wears out faster.

Do watts equal suction?

It’s generally better to start here. Most individuals think yes.

Wattage is just a measurement of how much power (or energy) will be utilised. So a 1000W vacuum cleaner uses 1000 Watts in one hour.

It’s a consumption measurement, not a power output measurement… Nothing about suction.

Use a higher wattage vacuum cleaner to use more power.

The Best Vacuum Cleaner for Suction Power (Airwatts)

Choosing a vacuum cleaner is all about airflow and air watts. If the manufacturer hasn’t provided airflow parameters, stick to suction power. Choosing the finest vacuum cleaner based on suction power is all about your needs. 

To find the finest commercial vacuum cleaners that can remove tonnes of dirt, debris, or pet hair from huge homes, you must first choose a modest household with low-to-moderate cleaning needs. Overall, here are some specifications that may be of interest and how energy efficient are they

At 180-200 AW, an upright vacuum cleaner is ideal.

A good canister vacuum cleaner has 300+ AW; a good cordless vacuum cleaner has 80-100 AW.

Prior to concluding this tutorial, let’s review the most often asked concerns about vacuum cleaner specs!

What is a decent vacuum’s wattage?

A vacuum cleaner with a usable power of 250-320 watts should be enough to clean a modest flat. Look for vacuums with a power consumption of 1500-3000 W and a useable power of 250-480 W. 

You may also like to read: Do you need vacuum cleaners?

If you have a big house, pets, or allergies, you should choose a powerful vacuum. Remember that Watts tells little about a vacuum’s performance. You need airflow and suction power (Airwatts) to know how well a vacuum cleans your hard surfaces or carpets.

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