This wrist strap has revolutionized water safety.
This genius wrist strap has just revolutionised water safety forever 
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Firefighters can see through smoke with new thermal mask
Story highlights
- Smoke can hide unconscious victims from firefighters
- Firefighters have used thermal cameras to locate victims
- New device projects thermal image into firefightersâ masks
Whatâs the most dangerous thing in a fire?
If you think itâs the flames or the heat, thatâs understandable: those are dangerous, too. But both from a victimâs and a firefighterâs perspective, the deadliest enemy is smoke.
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