Endothermic Phase Change

Cools for 1.11

Hours in Extremes

Prevents Heat

Stress

Fewer Shift

Rotations Needed

Coolers can Store

Refill Packets

Eliminates Need for Rehab

Increases Oxygen

Efficiency

Increases Manpower Efficiency

DECREASES HEART

ATTACKS

Solution Cost

Paraffin Wax: 1.60 - 1.90 $ / Kg Storage Packets: 10 – 20 $ /packet Nomex Blend Base Layer: 10 -20 $ /shirt Coolers: 10 – 20 $ /coolerTotal Max ≈ 62 $

Negligible compared to Bunker Gear ≈ 3000-5000 $

Linear 19-

Carbon Base for Technical Grade Paraffin

PCM Prevents Firefighter

Heart Attacks

Thermally Protective Gear Causes Heat Stress and Heart

Attacks, the Primary Cause of Firefighter

DeathsSolution - Phase Change Material:

19-Carbon Technical Grade Organic Paraffin Wax

Latent Heat of Fusion: 222 KJ/Kg

Melting Point: 32°C 3 Kg Absorbs 666 KJ

Firefighter metabolic rate in

extremes ≈ 600 KJ/h