Dual Vent Smoke Bombs

Dual vent smoke bombs release smoke from two vents simultaneously, creating a wider, more symmetrical dispersion pattern that fills a scene twice as fast as a single-vent grenade. The Shutter Bombs Twin Vent II is our flagship dual-vent model — a fast ~25-second dual-vent wire-pull smoke grenade that delivers a broad curtain of color perfect for large-format scenes, group photography, and wide establishing shots. Used by photographers and production crews, the Twin Vent II is the tool of choice when coverage area is the priority.

Twice the Coverage for Large-Format and Group Shots

Single-vent grenades concentrate output in one direction — useful for controlled bursts but limiting for wide-angle compositions. The Twin Vent II disperses smoke from opposite sides, expanding coverage horizontally and building a fuller cloud in less time. This makes it ideal for wedding party shots where multiple subjects need to be enveloped, landscape portraits where the smoke needs to fill the frame edge-to-edge, and any setup where a single plume is visually insufficient.

Dense 25-Second Dual-Vent Burst

At about 25 seconds of intense output, the Twin Vent II floods a scene far faster than our 30-second EG25, allowing for complex multi-step compositions, direction adjustments, and second-camera coverage without having to ignite another grenade mid-scene. The longer duration is especially valuable in production settings where lighting setups and camera positions require time to dial in once the smoke starts flowing.

Non-Toxic, Certified, and Ships from the US

The Twin Vent II is CE Approved (EU) and ATF Compliant (US), manufactured with a non-toxic cool-burn formula that produces no open flame and no sparks. It is safe for use in close proximity to subjects and sensitive materials. Orders ship from our US warehouse in 1–3 business days, and free shipping is available on orders over $225. With a long shelf life when stored cool and dry, the Twin Vent II is as reliable on the shelf as it is on set.