Vacuum cleaner suction power and airflow
Things to care when buying a vacuum cleaner
Suction power is measured in Watts (W) or air Watts and calculated based upon the negative pressure and airflow speed at the end of a standard vac hose.
Airflow (in l/s - liters per second or CFM - cubic feet per minute) of a vacuum cleaner demonstrates how much air (with dust and dirt) flows through the hose.
The higher the suction “negative pressure” is the better the vacuum cleaner picks up the dirt from the carpet.
The higher the airflow is better and faster the dirt is carried away from the carpet.
An ideal vacuum cleaner should offer a strong suction power (to pick up the dirt even if it is deep in a long pile carpet) and high airflow (to carry it away as quickly as possible).
Such effective vacuum cleaners offer the suction power of 250 - 350 W and airflow of 30 - 45 l/s.
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Agitation Is really as or more important than suction
sandy Vac has more info
Hello, Barney,
I am glad you started this. Agitation really is an important feature and it fully complements the vac suction power. It´s extraordinarily helpful if you want to loosen an old mud from the carpet or if you want to get rid of the animal hair.