Ecto-mist

The hotel had revealed many interesting energy anomalies, orbs, and ecto-mists, but none as impressive as these apparitions.

Source: wiktionary

The majority of graveyard ghost stories that involve voices being heard and ecto-mist or full apparitions being seen could very well be the work of a cemetery guardian.

Source: wiktionary

There were no tipped-over bottles or clouds of ecto-mist swirling near the baseboards, nothing other than that weird, ominous moaning and the rattling of the walls that accompanied it.

Source: wiktionary

The shout sends ecto-mist ripping through his body so he rips apart at the cheeks and chest, his body splitting open at the neck and knees, until he pops in a burst of red smoke and then exits through the crevices of the door.

Source: wiktionary