1. Structure
The first
factor to consider when choosing a vacuum cleaner is undoubtedly that of the
structure, which serves as a point of reference in determining which model best
suits our home.
However, we
must point out that when we speak of vacuum cleaners we refer specifically to
the traction vacuum cleaner, that is, the characteristic vacuum cleaner with a
long hose and the tank/motor that drags behind it. If you are interested in
vertical vacuum cleaners, see our page on electric brooms.
When
considering the structure of a vacuum cleaner, we will first evaluate its
weight and dimensions, together with its rest position, to understand if it is
suitable for our domestic spaces in which we plan to maintain it when it is not
in use and if it is appropriate for us and our forces.
In
particular, houses arranged on two or more levels, with ramps of internal
stairs, are not generally the ideal environment for a towed vacuum cleaner,
which is somewhat uncomfortable to hold while you pass the brush on the stairs.
Secondly, it
is interesting to consider the maximum length of the handle, also considering
the possible presence of accessory extensions, which may be of special interest
for those who have very high ceilings and furniture and want to use the vacuum
cleaner also to free themselves from cobwebs.
The length
of the tube, instead of the other, along with that of the cable, is an
important factor to consider if you want to get an idea of the range of
action of a vacuum cleaner, that is, the distance it can cover from the socket
to the which is fixed.
The small
design details that can make the difference in terms of agility and comfort
should not be overlooked: for example, a good ergonomic grip on the handle will
make the brushing of the surfaces less tiring, while the characteristics of the
steering can make the movement of the towing motor behind us more or less
fluid, even in sudden changes of direction.
The size,
the inclination and the possible covering of the wheels contribute to
facilitating the direction and the ability to pass over small obstacles, such
as a cable or a small difference in height. Larger wheels and models with more
wheels, cross these obstacles more easily, and inclined wheels facilitate the
direction.
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2. Brushes and nozzles
Another very
important factor, which should be considered in relation to household
furniture, is that of the nozzles and brushes supplied with our new vacuum
cleaner.
Depending on
the type of pavement we have and whether the carpets are present or not, it
will be important to consider what brushes are available: some models have a
universal brush, suitable for all surfaces, while others offer different
brushes to be mounted depending on the surface to be treated.
We could
then find in the package a ceramic floor brush, a parquet brush and a brush
with carpet and carpet bristles.
Another
advantage is the nozzles for working on surfaces and narrow spaces, such as a
lance nozzle to intervene in cracks or, for example, in the dashboard of the
car, or a T-shaped mouthpiece for padded articles, suitable for both sofas and
for armchairs, as well as for the seats of our car.
Other
accessories can be extension tubes, used to easily reach the corners of the roof
and free them from cobwebs, as well as ventilation grilles with soft brushes
suitable for cleaning shelves and wooden furniture without scratching them.
In addition
to the variety of accessories, it is also important to evaluate the quality and
care of the design : for example, we evaluate if it is possible to mount
accessory nozzles in the tube or motor to have them always at hand, and if the
nozzles have integrated elements that allow adapting them with a simple gesture
to different surfaces.
3. Consumption and benefits
A third very
important factor is the consumption and operation of the towing vacuum. Now all
the vacuum cleaners carry the European energy label, which at a glance shows us
how much a vacuum cleaner consumes, but also the performance it offers on hard
floors and soft surfaces.
Consumption
Speaking of
consumption, the scale is now well known, ranging from efficiency class A (or A
+, A +, A +, A ++ and so on), the best, to class G, which represents the most
energy intensive. Those who want to be careful with consumption, therefore,
will have to prefer aspirators in a class of high energy efficiency, from B
upwards.
We can also
offer some peace of mind regarding the relationship between engine power
(expressed precisely by energy consumption) and suction capacity : not
necessarily lower-power engines correspond to more disappointing performance,
on the contrary, modern technologies they have made possible a significant
reduction of the consumption without penalizing the yield, since we will see
better when we speak of the following factor related to the characteristics of
the deposit.
Benefits
The
efficiency of the vacuum cleaner, as we have already mentioned, is indicated in
the European energy label: in it, a simple diagram informs us of the efficiency
class in both hard floors and carpets and carpets. Also in this case, as in the
energy consumption, the scale varies between A (excellent performance) and G
(poor performance).
Class A
means that all the debris accumulated in the spaces between the tiles and
between the fibers of the carpet is effectively sucked, and the performance is
good and sufficiently deep up to class C, while, on the contrary, class G
represents a suction capacity able to remove only the dirt on the surface,
without being able to intervene effectively in the joints and between the
fibers of the carpet.
On average,
the best vacuum cleaners will have an efficiency class on C or B carpets, while
an A efficiency class on hard floors can be found even among low-end models.
4. Deposit characteristics
Another very
important factor is related to the characteristics of the tank. The size of the
container can determine how long a vacuum can be used before emptying the
container or changing the bag. A capacity of more than 2 l can be interesting
for those who have a large house, with the necessary clarification that, of
course, the greater capacity of the tank will also correspond to larger
dimensions and dimensions.
But what is
also interesting to consider is the technology adopted by the tank: in fact,
there are three types that can be found in the market, each with its strengths
and weaknesses: tanks with bags, cyclone tanks, and water tanks. Let's see them
one by one.
Deposit of bags
The deposit
of bags, the most traditional and traditional of the technologies available
today, accumulates the dirt sucked into the paper bags that also act as a
filter, and that must be replaced once filled completely.
The
advantage of this technology is that this type of tank generally offers greater
capacity, with the same footprint, and it is necessary to think about changing
the bag only when it is full, after several uses of the towed vacuum cleaner.
In fact, the average capacity of the bags ranges between 3 and 4 liters, which
allows cleaning the floor even in the largest homes without having to change
the bag. In addition, bag vacuum cleaners generally cost less than the other
two types.
Among the
disadvantages are, of course, the recurring cost of having to maintain a supply
of replacement bags, and the fact that the suction power is being significantly
reduced as the bag becomes full. In addition, in general, with equal suction
power compared to the other two technologies that we will see, bag vacuum
cleaners require more power and therefore more consumption.
Water tank
One of the
alternatives to the tank of the traditional bag, the towed vacuum of the water
tank has several advantages. Of course, there is no maintenance cost, since it
is not necessary to buy replacement bags, and the emptying of the tank is done
in the wash tank without putting the powder back in the air since it dissolves
in water.
Among the
disadvantages, it must be taken into account that, on average, the capacity is
lower than that of the sack deposits, since the deposit must necessarily be
extractable for emptying and filling. However, the capacity is less important
than the other two types of vacuum cleaners, since the tank must be emptied
after each use and left empty and well dry between the cleaning sessions,
otherwise, mold and odor may form.
Unlike the
other two types of vacuum cleaners, therefore, a water vacuum cleaner is not
always ready to use, because it must always be filled with water at the time.
Cyclone deposits
The cyclonic
tank represents the latest innovation in terms of suction. The principle of
operation is simple: the flow of air sucked is transported to the tank to form
a small "cyclone" inside, whose spiral movement naturally creates a
suction that helps the engine suction. Thanks to this simple physical
principle, cyclonic vacuum cleaners can offer excellent suction performance
even with a less powerful motor than the other two types.
Among the
advantages of this technology, it is necessary to take into account, therefore,
the energy saving in comparison with the other two types of vacuum cleaners, in
addition to the absence of recurrent costs due to the purchase of bags. In many
cases, the emptying of the tank, which can be carried out in the garbage
container, can be done by completely avoiding contact with the collected dirt.
The negative
aspects , on the other hand, include the lower capacity, as we have already
mentioned: a cyclonic deposit can go from 1 liter to just under 3 liters, and
therefore needs to be emptied frequently, approximately every 3-4 uses for the
largest containers and every 2-3 for the smaller ones, since even in the case
of cyclonic deposits the suction power decreases with filling, although less
drastically compared to bag vacuum cleaners.
5. Filters
Finally, it
is also worth spending a few minutes to understand which filters and how many
are equipped with a vacuum, especially if there are people in the house who
suffer from the most common allergies (rollers, mites, hairs). For the latter,
in fact, vacuum cleaners equipped with high-efficiency filters can be very
interesting, they retain almost all the smallest particles, including bacteria
and allergens. Let's see in the following sections which filters can be
equipped with a vacuum cleaner.
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