ELSA Unit

Introducing ELSA

The world's first dry ice fire extinguisher

  • No water or chemicals — just food grade dry ice
  • Extremely effective for lithium battery fires
  • Clean, refillable and reusable
  • Instant knockdown — zero reignition
Independent FPE Validation
View technical reports →

ELSA in Action

Proven as the cleanest and most effective solution for lithium battery and fuel fires — without water, foam, or mess.

🔋 58 Ah NMC prismatic lithium battery fire extinguished cleanly.
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🔥 500 SF diesel fire fully suppressed in under 20 seconds.
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Independent Validation

ELSA performance has been independently evaluated by professional fire protection engineers through formal Technical Opinion & Reports (TO&R) covering both lithium battery and ignitable fuel fire scenarios.

Lithium Battery Fire Mitigation

Independent evaluation of ELSA's effectiveness in mitigating lithium-ion battery thermal runaway events. Testing demonstrated rapid cooling, oxygen displacement, and effective suppression of battery fires without water or chemical agents.

Documented by licensed fire protection engineers through a formal TO&R review.

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Fuel Fire Suppression

Independent analysis of ELSA performance in hydrocarbon fuel fires including diesel and ignitable liquid scenarios. Results demonstrated rapid flame knockdown and suppression through extreme cryogenic cooling and inert gas displacement.

Formal TO&R report documenting observed suppression performance and operational characteristics.

View Report

How It Works & System Specs

A new kind of fire suppression — combining the raw power of cryogenics with clean, controlled discharge.

How ELSA Works

  1. Charge: ELSA is pre-loaded with pressurized dry ice and liquid nitrogen for added cooling power.
  2. Deploy: Trigger discharge via manual or automatic activation; a cryogenic slurry is released at high velocity.
  3. Suppress: Fires are extinguished instantly through cooling, oxygen displacement, and ember suppression — with no residue or reignition.

Key Specs

  • System Type: Self-contained cryogenic fire unit
  • Discharge Slurry: 65% sand-sized dry ice + 35% liquid nitrogen
  • Discharge Options: Fixed nozzle, flexible hose or custom integration with existing process
  • Controls: Industrial grade touch-screen PLC control and active monitoring
  • Flow Rate: ~4 lb/sec dry ice
  • Tank Capacity: Up to 600 lbs dry ice
  • Size: 40" x 44" x 60"
  • Weight (loaded): 1,200 lbs
  • Recharge Options: On-site refill or tank swap options
  • Mounting: Floor, skid, or vehicle-compatible

Media & Press

Explore ELSA in the spotlight — from industry interviews to in-depth technical analysis.

Podcast Interview

Hear our founder discuss how ELSA is redefining fire suppression on the Energy Risk Engineering podcast — from cryogenic cooling to the future of lithium battery safety.

Watch on YouTube
Fire & Safety Journal Americas

A featured interview in FSJA’s Nov/Dec 2025 issue highlights ELSA’s groundbreaking approach to dry ice fire suppression and its growing impact across industries.

Also featured: An in-depth FSJA essay examining the battery fire inflection point and why external intervention technologies like ELSA are reshaping lithium-ion risk mitigation.

Interview Battery Fire Essay

Ready to Learn More?

ELSA is now available for purchase. Contact us to request a demo, ask a technical question, or discuss your specific fire needs.

Contact Carver Fire

Or email us directly at info@carverfire.com