Vacuum cleaners are typically ranked in terms of suction power based on a unit of measurement called "airflow" or "air watts." Airflow is a measure of the volume of air that the vacuum can move through its system in a given time, while air watts take into account both the airflow and the vacuum's suction ability.
Airflow: Airflow is usually measured in cubic feet per minute (CFM) or liters per second (L/s). A higher CFM or L/s value indicates a more powerful vacuum cleaner with better suction.
Air Watts: Air watts, on the other hand, consider both the airflow and the vacuum's ability to create suction. It is a more comprehensive measurement of a vacuum cleaner's cleaning performance. The higher the air watts, the better the suction power.
When comparing the suction power of several vacuum cleaner models, it's essential to consider both airflow and air watts. Some manufacturers provide these specifications in their product descriptions or manuals, making it easier for consumers to compare different models.
The ideal level of suction power for household use depends on your specific needs and the type of cleaning tasks you have. For most households, a vacuum cleaner with a suction power of around 70 CFM or 100 air watts should be sufficient for general cleaning purposes. This level of suction power is suitable for cleaning carpets, hardwood floors, and removing dust and debris from various surfaces.
However, if you have pets, heavy carpeting, or deal with a lot of debris and dirt, you might consider a vacuum cleaner with higher suction power. Some premium models can have suction power exceeding 150 air watts or more, providing excellent performance on tough cleaning tasks.
Keep in mind that suction power is just one factor to consider when choosing a vacuum cleaner. Other factors such as filtration, maneuverability, attachments, and overall build quality also play a significant role in the vacuum's cleaning performance and usability. Reading user reviews and expert recommendations can help you make an informed decision when purchasing a vacuum cleaner.