Usb handheld fans are not particularly resistant to dirt, mainly dust. If it is only used indoors, it will be fine. It will take a while to get dirty. If you often shoot outdoors, the fan blades are easy to accumulate dust and need to be cleaned regularly. If the fan blade is white, it looks particularly obvious.
Extended knowledge: how to clean usb handheld fan
Method one
1. Squeeze the toothpaste into a small bowl, then pour in white vinegar and salt, add toilet water, and stir evenly with chopsticks until the toothpaste dissolves.
2. Pour the dissolved solution into a watering can and spray it with a USB handheld fan.
3. Cover the small fan with a plastic bag and turn the fan to the maximum speed.
Finally, take away the plastic bag and clean it. The USB fan is as clean as new.
Method 2
1. Preparation tool: Open the casing of the small fan with a screwdriver of appropriate size; A wet rag and a small basin of water.
2. Remove the USB fan with a screwdriver, and wipe the fan blades, outer walls, gaps, etc. Wipe them clean with a damp cloth, then put them in a ventilated place to dry and then reinstall them.
3. If the hand-held fan is difficult to disassemble, it can be scrubbed with a cotton swab. First, brush the cracks in the outer wall, spread wet paper towels, and then poke them in one by one with cotton swabs. This method can be used before and after; Then use a cotton swab to fix the fan blade in the gap, insert it with a cotton swab and clean it.