Halo Seal, Halo Vent and Halo XL Documentation

Product Overview

HALO Seal is one of the first modern chest seals to the market. When the Gulf War was heating up, Combat Medics were looking for an a chest seal that was durable, highly adhesive, easy to use and able to perform in a wide range of operational environments. HALO Seal was created to prevent and treat a tension pneumothorax, the second leading cause of preventable death on the battlefield. HALO Seal, HALO Vent and HALO XL feature the following: 


  • Highly effective medical grade hydrogel that allows the HALO Seal to stick in wet, bloody, sandy or harsh environments.
  • Features Scrim, a non-woven material that is added to the HALO hydrogel to keep the gel from migrating in high heat environments.
  • Temperature range of -30° - 140° F.s.

Outer Tape Edge

  • Tape edge is more forgiving when handling with gloved or bare hands.
  • Outer tape edge has a wider operating temperature range and performs better in freezing temperatures, thus allowing the hydrogel time to warm to body temperature.

Size and Shape

  • Covers a greater surface area, and aids in coverage of larger, unpredictable wound patterns.
  • Oval shape allows for greater adherence around the contours of the body.
  • Large pull tab allows for effective placement and wound burping. 


  • Durable packaging is impenetrable to water, air, gases, and is puncture and tear resistant.
  • Material can be used as an additional occlusive barrier by using tape to secure the barrier.
  • The package contains tear notches at all 4 corners.

Halo Seal Documentation

Halo Brochure

Anatomy of a Halo Seal

Anatomy of a Halo Vent

Poster Presentation from SOMSA 2019