The essential points to consider on a vacuum cleaner
The air flow rate
The air flow rate is the amount of air sucked in by the
appliance per second. This indicator, expressed in liters per second (L /
s) or cubic decimeter per second (dcm 3 / s). It
tells you about the suction capacity of the air with dust to the tank.
The greater the airflow of the vacuum cleaner, the more
efficient the appliance is and thus limits the number of passages to clean a
surface. The average airflow for a vacuum cleaner with bag is 38 dcm 3 /
s and 30 dcm 3 / s for a bagless .
The Depression
It is expressed most often in Pascal kilos (kPa). It is the
measure of the force exerted to lift and aspirate dust from the soil to the
tank.
The higher the vacuum, the more your vacuum cleaner will be able
to lift and aspirate large particles. Currently, the average vacuum value
of vacuum cleaners with bag is about 30 to 40 kPa. As for vacuum cleaners
without bags, the vacuum is about 25 to 30 kPa.
The useful power
This is the result of a combination of the two indicators
mentioned above, the air flow and the vacuum. The balance between these
two elements guarantees the efficiency of the device. In most cases, this
information is not available in stores. So do not hesitate to contact the
manufacturer to get them.
The brush
It is only an accessory of the vacuum cleaner, however it is the
most important accessories because it is the brush that will determine the
effectiveness of your vacuum cleaner on hard or soft surface. It is
therefore important to learn about the brush to see if the vacuum cleaner is
more suited to hard, soft floors or if it is made for both types.
The range of action
It is the addition of the length of the electrical cable, the hose
and the device itself. And the greater the range of action, the less you
will have to unplug the vacuum cleaner in search of the nearest free intake.
The weight
Manufacturers are making more and more efforts to ensure that
the vacuum cleaner can be drawn with as little stress as possible. Indeed,
the heavier it will be, the more painful it will be. Especially since you
will sometimes be led to lift it.
The sound level
A vacuum cleaner in operation emits more or less noise. The
latter is expressed in decibels (dB). This criterion is not necessarily
negligible especially since it is recommended to choose a vacuum cleaner whose
noise nuisance is as low as possible.
In addition, it should be noted that the noise doubles every 3
dB. In other words, a vacuum cleaner at 78 dB makes twice as much noise as
at 75 dB and 4 times more than one at 72 dB. Between the quietest (around
65 dB) and those near an aircraft reactor (more than 80 dB), it therefore has
nearly 40 times more noise. Vacuum cleaners without bag are more noisy,
unlike models with bag. The bag acts as a sound insulator.
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