(1) Products of different types and specifications, their structural properties and functional characteristics are not completely the same, so pay attention to the selection.

(2) Connect the ground wire to ensure safe use of electricity.

(3) When used normally, if there are large pieces of paper, paper balls, plastic cloth or something larger than the diameter of the straw, the parts to be cleaned should be excluded in advance, otherwise the suction pipe will be blocked.

(4) When absorbing liquid substances, the filter element should be removed to prolong its service life.

(5) When more garbage is found, the dust on the filter should be removed at the same time as the filter is removed, and a good air passage should be maintained to avoid clogging the filter, causing suction drop, motor heating and reducing the service life of the product.

(6) After use, it should be stored in a dry place. If it is placed in an excessively humid place, it will affect the electrical insulation and service life.