The Jinan Yuxing Chemical Co has asked all employees to be more frugal in their daily routine by saving electricity and reducing the use of paper whenever possible. To help with this, it drafted a document with specific measures. For example, in saving power, it suggested that employees use natural sunlight and switch on lights only when needed, say, during night shift, and switch them off when leaving the office. If air conditioners are used, the doors and windows should be closed and the time of use shortened whenever possible. If office equipment is not in use for more than an hour, it should be turned off, the same for water heaters not in use. Also, high-power electrical appliance use in offices is forbidden and, when meeting rooms are not in use, their lights and electrical devices are to be turned off. In reducing the use of paper, it encourages the use of recycled paper and printing on both sides. In printing non-official documents, the use of paper that has already been used on one side is encouraged. The idea is to produce a paperless office.