Built by the creators of OpenFirehouse · Open Scaffold Labs

From the
placard to the
plume.

FireHazmat is the all-in-one hazmat response app and incident command tool — the complete ERG 2024 dataset plus the tactical instruments your unit needs. Built for hazmat techs and firefighters, by a hazmat tech and firefighter.

Built by
Active-duty Fire Captain · Hazmat Technician

Every feature exists because a responder needed it on a call — not because a product team thought it might be useful.

Download on theApp Store Open in browser → See pricing
100% offline-capable
Public-domain data
Zero tracking
LIVE · MAP
FireHazmat iPad — live evacuation map at night with ERG Initial Isolation and Protective Action Zone circles, downwind chlorine plume polygon, and live weather data over San Francisco
3,541
Hazardous materials
62
ERG response guides
272
Table 1 isolation
26
Table 3 large-spill
100%
ERG chemicals with NIOSH IDLH
01
What's in the app

Six tools. One offline tablet. Built for the rig.

The full surface area at a glance. Each one earns its place because a responder needed it on a scene.

01 / 06

Live evacuation map

Initial Isolation + Protective Action Zone circles drawn from ERG Table 1. Plume redraws as wind shifts. Day / Night PAD auto-toggles.

02 / 06

Incident Command Board

Retires the whiteboard and permanent marker — IC roster, zone teams, decon corridor, timestamped activity log that survives the call. Syncs end-to-end encrypted across every iPad on the dept license; the cloud never sees plaintext.

03 / 06

Unknown-substance Wizard

No placard, no UN number. Field-observation questions narrow 3,541 materials to a defensible posture.

04 / 06

Placard grid

Nine DOT hazard diamonds in their real colors, with material counts. Identify from across the cab.

05 / 06

Hotline reference

CHEMTREC, NRC, Poison Control, CANUTEC — one-tap dial, cached, 24/7.

06 / 06

Material detail

TIH banner, ERG guide pre-loaded, container-specific Table 3 distances. Every guide section, in one card.

02
Same depth, smaller form factor

All-purpose hazmat tool in the palm of your hand.

01 / 07

Search

Every material, every UN number — in your pocket.

FireHazmat iPhone — search 3,541 hazardous materials by name, UN number, or hazard class
02 / 07

Identify

TIH banner, UN number, small-spill isolation distances — the safety story at a glance.

FireHazmat iPhone — Ammonia anhydrous UN 1005 with Toxic Inhalation Hazard banner and Table 1 isolation distances
03 / 07

Distance

Table 3 container-specific PADs by wind and time of day. No guesswork.

FireHazmat iPhone — Table 3 container-specific PAD distances for Rail tank car, Highway tank truck, Agricultural nurse tank, and Multiple small cylinders
04 / 07

Properties & GHS

Physical properties, IDLH, TLV-TWA, STEL — plus full OSHA GHS pictograms and H-code statements.

FireHazmat iPhone — chemical properties with IDLH 300 ppm, TLV-TWA 25 ppm, flammable range, plus GHS Classification panel with Gases Under Pressure, Corrosive, Acutely Toxic, Aquatic Toxicity, Warning, Flammable, Health Hazard pictograms and H382 H314 H318 hazard statements
05 / 07

Suit up

Level A SCBA, CGI, PID, NH₃ meter — what to wear, what to bring.

FireHazmat iPhone — Level A Full Vapor Encapsulation plus SCBA with recommended field instruments CGI/LEL meter, O2 monitor, photoionization detector, and ammonia meter
06 / 07

Guide

Health hazards, fire behavior, evacuation distances — ERG 2024, in full.

FireHazmat iPhone — ERG Guide 125 content with Public Safety, Health Hazards, and Fire or Explosion sections
07 / 07

First Aid & CHEMTREC

Material-specific first aid plus one-tap CHEMTREC 24-hour emergency line right from the material detail.

FireHazmat iPhone — First Aid section with one-tap CHEMTREC 24-Hour Emergency 1-800-424-9300 button, Also Known As synonyms, and Open in Map action
03
Walk a real call

From dispatch to scene control.

“Chlorine release at an industrial facility. Multiple victims symptomatic. Wind southwest at 12 mph.”

See the call beat by beat — every screen, every distance, every decision. The screens you saw in the grid above, in motion, on a real scene.

Open the scenario walkthrough →
04
Why offline matters

Hazmat scenes are exactly where signal fails.

Basements. Parking decks. Rail right-of-way. Rural highways. Tunnels. The instant cell signal drops is the instant your reference book has to still work.

FireHazmat ships the entire 2024 ERG dataset bundled inside the app — every search, every isolation distance lookup, every Table 3 PAD calculation runs locally with zero network. The only feature that touches the internet is the optional weather chip on the Map screen, and it degrades gracefully to a dash if no signal — you can enter wind data manually and keep going.

✈
Airplane mode
WORKS
▓
Basements + decks
WORKS
↔
Rural highways
WORKS
◉
Tunnels
WORKS
05
Data sources

Every distance, every guide — sourced from public-domain government publications.

Every number in FireHazmat traces back to a U.S. government publication anyone can verify. The full source list is cited in-app on the Hotline tab.

01

ERG 2024

PHMSA · U.S. DOT

Materials, response guides, Table 1 isolation distances, Table 3 container-specific large-spill PADs.

02

NIOSH Pocket Guide

CDC · NIOSH

IDLH and exposure thresholds for hazardous chemicals. 100% of ERG-shipped chemicals NIOSH publishes an IDLH for are present in FireHazmat, verified quarterly against the live CDC source.

03

49 CFR

U.S. Department of Transportation

Hazard class and division definitions.

04

PubChem

NIH · National Library of Medicine

Physical properties and CAS numbers.

06
Open Scaffold Labs

One fireground. The whole toolkit.

FireHazmat works the hazmat call. Its companions run the house and the platform behind it.

The platform

OpenFirehouse

The operating system for the fire department — roster and staffing, apparatus, training and compliance, live CAD dispatch, and an incident command board that takes over the moment a call drops.

Visit OpenFirehouse →
In the cab

OpenFirehouse Mobile

The native iPad client for the apparatus — Size-Up auto-raises the instant a call drops, with the route, wind, hazmat plume, and command board mounted at arm’s length.

See it in the demo →
Foundation

Open Scaffold Labs

One framework, any vertical — the shared, open foundation behind FireHazmat, OpenFirehouse, and beyond.

Explore the platform →
Ready to deploy

Ready to put it
on your rig?

Free on every responder's iPhone. Email us when you're ready to license your department.

Download on theApp Store Open in browser → Get a license
Pricing
iPhone reference Free
Solo iPad $299/yr
Department · 2–10 devices (iPad + desktop) $500–$1,500/yr
7-day free trial included