Two of the most important things you
should inspect on the specifications list are the motor power and air flow. The
motor power determines how much current the unit requires to run, measured in
terms of amps. Current models commonly have 12 amps of motor power. Just as
important as this is the air flow. Measured in cfm or short for cubic feet per
minute, this gives you an idea on how well the machine can pull dirt and debris
on surfaces and take them into the collection container.
Speaking of collection, you also
have to decide if you want one that is bagged or bagless. Like what the name
says, the bagged type uses disposable paper containers, offering convenience to
the user. But one has to constantly provide a replacement bag. It's also not
unlikely for manufacturers to discontinue producing bags for specific units
after some time.
A filtration feature is something
that a bagless unit normally boasts of. This is a great feature especially if a
member of your family has allergy or problem with the respiratory tract.
Filtration helps eliminate allergens like pet dander and dust mites. However,
if you want to maximize such feature, check that the machine relies on
high-efficiency particulate air (HEPA) filter.
It's also important to consider the
noise being emitted as the machine is running. You don't want to rouse sleeping
family members when cleaning in the morning. Luckily, the use of quieter motors
is one of the main selling points of manufacturers these days. With the motor
sufficiently insulated, the unit won't produce too much noise when being used.
Check that there are different
nozzles and attachments around as they can help produce better results. Ensure
that you won't have a hard time using the machine at home. Trying out various
models is important when buying vacuum cleaners. The superb features available
don't account to anything if you won't be able to use the unit comfortably and
efficiently.
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