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How to vacuum a car
Choose the best type of vacuum for the job.
A standard household vacuum cleaner may not have the reach or flexibility you need to get down into narrow crevices of your car's interior. Your best bet is to use a high powered wet/dry vacuum with an extendable hose.
One of these vacuums will give you all the suction you need while also being more maneuverable. Consider purchasing a dedicated car vacuum, which is designed to fit easily into hard-to-reach spots inside automobiles.