The successor to the Divex AH3 and AH4, the Divex AH5 is a lightweight, free-flow air helmet designed to be used either fitted with its own neck seal, or locked directly into a drysuit.

Combining many of the advantages of both the traditional hard-hat helmet and of modern diving masks, the AH5 is recommended for tasks as diverse as heavy construction, mobile inspection, protracted diving in cold and polluted waters and nuclear diving.