
It is also used by the survey teams sent to Xen to collect specimens. He is required to wear and operate the suit when handling anomalous materials, and is trained and certified in its use in training course. In Half-Life, Gordon wears the Mark IV model of the suit. The suit design appears to be unisex, and it has a Lambda logo on the chest. It can be recharged by using wall-mounted chargers or power modules. The suit needs to be recharged periodically the greater the charge, the more protective power the suit provides. A computerized female voice speaks from the suit to provide information on the user's status as well as updates on environmental conditions. It also displays vital information on the heads-up display. It provides limited protection from the elements. The suit was designed for use in hazardous environment conditions.
