1. When the season changes, put the bed in a plastic bag, then use a mini vacuum cleaner to extract the air in the bag to form a vacuum, and then seal the bag tightly, so that the bed cover and bedding will not be damp and moldy. .
2. In life, we sometimes drop small things (needles, buttons, rings, etc.), which fall into an invisible place or under the table. At this time, you can put a layer of gauze around the mouth of the usb vacuum cleaner, and then To suck these little things again, effortlessly.

