Laptop keyboards and screens can get dirty and will need to be cleaned. This is especially true of laptops (Chromebooks) used by students. In order to clean them, please do the following:
1. Unplug and power off the laptops.
2. Either spray cleaner onto a cloth or paper towel. Try very hard to avoid getting liquid beneath the keys, as this will damage the laptop! Never spray directly on the keyboard. Be sure that the cloth/towel is not dripping liquid. Squeeze excess liquid out prior to cleaning.
3. Wipe down all surfaces, and again take care not to get liquid under the keyboard.