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Generally speaking, the power is the most important index for vacuum cleaner.
But in terms of power alone, it means nothing but power consumption.
Of course, in general, the larger the power, the stronger the suction. But please note that it is only in general.
Exceptions are many - poor sealing, and low efficiency motors may cause high power and low suction to reduce temperature rise and deliberately deflate.
The real important indicator should be the power of inhalation or efficiency. The vacuum cleaner with a general efficiency of more than 18% can be considered very good. Power X efficiency is the power of inhalation.
Vacuum degree: an important indicator of the size of suction. The index has a great relationship with the power. The greater the general power, the higher the index. With 1000W as the standard, the value should be around 20Kpa.
Air volume: air flow through suction chamber in unit time. An index of the same importance as vacuum is also related to power. With 1000W as the standard, the value should be around 1.3.
Noise: about 1000W of the vacuum cleaner, the noise is generally around 80 decibels.
Excellent motor technology can of course reduce noise.
The addition of silencers and silencers can also reduce noise by 5-10 dB.
But it should be noted that the noise of low power vacuum cleaner is also much lower.
In the end is a little more excellent technology, or lower power, it is worth considering.
The lowest noise cleaner is usually a rechargeable vacuum cleaner. The top grade is only 40 dB noise, but the power is only poor 350W. The vacuum and air volume are only about 12 to 13 kg, 0.7 m3/s.
Temperature rise: 1000W vacuum cleaner, after a long start, the outlet temperature is generally above 40 degrees.
Similarly, small power can reduce the temperature rise.
Generally, the vacuum cleaner produced by qualified factories is tested with temperature rise test.
Therefore, although heat is a hot topic, it should be consistent with safety regulations.
Life span: the life of the general vacuum cleaner is 300 hours (continuous operation), and the professional dry and dual-purpose vacuum cleaner can reach 1000 hours.
But even the same batch of the same product may be quite different in length.