Put on the headset and practice entering a confined space the safe way. This training prepares the user to enter the confined space. The training is conducted on an empty oil storage tank. The training starts with the work permit, the placement of warning signs, the gas test with the proper equipment, and the locking and tagging of all equipment connected to the confined space. After that, the user must set up the ventilation of the confined space and communicate with colleagues to determine the roles of observers and belayers. After that, the user will put on the harness, connect it to the cable and check the walkie-talkie. The final steps are to sign the entry permit and check all safety measures.