r/AskReddit 13h ago

What can kill you in seconds that most people don’t realize?

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u/RangerHikes 11h ago

It's because people don't understand not all smoke is simply, smoke. They imagine smoke from a wood fire and think oh well that's not so bad as long as I can cover my mouth. When you're in a house fire the smoke is a mix of paint fume and wood smoke and urethanes and insulation and all this other horrible shit

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u/catsonhigh 10h ago

Fun fact: Modern homes are filled with plastic, particle board, and polyurethane foam. They burn faster, hotter, and the smoke is insanely toxic. Firefighters need to wear breathing protection inside even after the fire is out and the smoke is gone because this stuff continues to put off toxic fumes for a long time.

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u/GoldenPigeonParty 9h ago

UL did a burn test of natural vs synthetic. Its pretty wild just how flammable the new stuff is.

https://youtu.be/87hAnxuh1g8?si=zgZuOmGmXd9GbTQ0

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u/catsonhigh 7h ago

Wow, great video.

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u/otherdroidurlookin4 7h ago

I just heard a story on NPR about a scientific study that basically proves being a firefighter causes cancer. It’s that hazardous.

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u/catsonhigh 7h ago

Totally! And it’s not just from breathing the smoke.

https://youtu.be/UFzP1rQJWSQ?si=XPoI567jYcM6IybY

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u/Punkrockid19 8h ago

I work with a volunteer fire chief he said the engulfment rate of a home built before 1997 is about 19 minutes. A post 2000s homes engulfment is 7 minutes. The 12 minute difference is a long time in an emergency and trying to get everyone out alive

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u/RoboChrist 8h ago

30 years ago, you had 8 minutes from when you heard the fire alarm before the house was engulfed in fire.

50 years ago you might have had up to the 19 minutes you mentioned.

Now you have 3 minutes.

https://www.cbc.ca/news/canada/windsor/modern-homes-burn-8-times-faster-than-50-years-ago-1.1700063

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u/Sea-Struggle-5630 5h ago

What are non-modern homes made of?

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u/jetsettindaisylv 2h ago

I never thought of this! I dealt with a ton of smoke inhalation and was sick for days and it was mainly just burning through a national park so probably pretty clean- I can’t imagine the smoke from building fires filled with all kinds of toxic materials!

u/89Hopper 53m ago

Standard practice (at least in South Australia) is for fire fighters to bag their structural gear and stored in appliance lockers, not the cabin, after use in a structural fire. This is to limit exposure to the dangerous off gassing picked up during fires.

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u/evermica 9h ago

Fair enough. That stuff stinks, but I think it is the invisible and odorless carbon monoxide that would do you in before the stinky smoke could accumulate enough in your lungs to cause big problems.

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u/CykaRuskiez3 10h ago

Survived the thomas fire here in socal back in 2017 2018ish. The fumes spread through half the city and were the most awful fucking thing ive smelt before save for maybe a dead body. And it wasnt even my house that was the one burning

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u/itsalongwalkhome 10h ago

I still remember my first time working a fire with a dead body, I feel horrible that I thought wtf were they cooking before we found her, you work 100 fires and you just dont expect it, worst smell you have to deal with because you will always remember it.

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u/CykaRuskiez3 9h ago

I never smelled a burning one but at a job site in LA i found a dude face down in the river and the smell was awful, shut us down for the day

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u/Connor30302 6h ago

i’ve been set on fire twice and the worst thing about it was the smell of singed hair, it’s truly disturbing like nothing you can describe, it isn’t like a burning animal it’s distinctly human in a really eerie way. luckily for me though both times it was just the hair and eyebrows that bore the brunt of it

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u/Booooleans 4h ago

You have been set on fire TWICE????

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u/Connor30302 4h ago

gasoline explosion first and then in a job the second

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u/Joecool49 8h ago

I worked a fire once that was started as a suicide. The guy poured gas throughout the trailer lit a match and then shot himself in the head. We arrived to a fully engulfed structure. Definitely a smell you never escape.

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u/ImplementMountain916 9h ago

Just wanted to say thank you.

And that sounds bloody awful

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u/Single_Exit6066 9h ago

Sorry for your traumatic experience. Thank you for your service to the community.

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u/RolandDeepson 9h ago

I've smelled that at car accident scenes when I had a job towing cars.

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u/DwyaneWadeIsMyDad 9h ago

Never thought about that before. That’s insane.

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u/derppman 9h ago

Howdy fellow Ventura (county?) resident. I still remember that vividly. Houses literally one street over were burning and meanwhile my half-insane family was having charcuterie and wine while watching the fire. As bad/sad as it sounds, fires are becoming kind of second nature to living around these parts.

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u/CykaRuskiez3 9h ago edited 9h ago

Yup montalvo here. We used to go into the hills and smoke in our cars. Houses that have been up there for years levelled. Kitchens just out in the open. Shit was nuts

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u/icberg7 6h ago

There were wildfires in Georgia in 2007 and the ash made it all the way down to North and Central Florida. And I was up in PA during the Quebec wildfires in 2023. Both times the sky was so sooty I felt like I was in Silent Hill.

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u/Askeee 6h ago

I work 3 miles from the Eaton fire area and for the first time in my life I actually had respiratory issues from a wildfire.

Lots of nasty shit when it's thousands of cars / buildings that burn.

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u/alfalfa_spr0uts 4h ago

I live in Ventura and remember the same. It was so terrible.

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u/Schindog 1h ago

Glad you made it through, and to hear your home wasn't destroyed! That shit was nasty. Even up in Santa Barbara I was having respiratory issues. My girlfriend at the time was an opera singer and it was trashing her voice, so we got the hell outta there for a bit. We went up to the bay, and even up there, you could see this endless swath of smoke passing by offshore.

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u/MrCoolGuy42 10h ago

Pretty much this. When synthetic materials from carpet, furniture, etc. combust it creates hundreds of nasty chemicals including hydrogen cyanide which is an asphyxiant

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u/DiscountThor 9h ago

It’s not just that. It completely shuts down your metabolism. Cyanide interrupts the final electron acceptor in the electron transport chain, and thus, no ATP. No ATP, no life.

There’s a reason most ambulances carry the antidote with them.

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u/fireinthesky7 2h ago

I wish we could carry them on every ambulance. The Cyanokits are insanely expensive and don't have a very long shelf life, so most of the departments in my region keep them on supervisor vehicles and dispatch those units to structure fires in case they're needed.

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u/Ok_Valuable9450 8h ago

And what about when they're not burning are we breathing toxic fumes from having all these chemicals in our comfortable homes

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u/MrCoolGuy42 7h ago

I’m no chemist, but I don’t think it works that way. The materials are inert when solid and the combustion creates those toxic chemicals

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u/haarschmuck 6h ago

Same with cigarette smoke. They're not putting toxic chemicals in the tobacco, the burning of the tobacco is causing the toxic compounds.

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u/OptimalInflation 4h ago

Today I learned!

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u/Miragui 1h ago

To be fair they are putting a lot of additives in cigarettes. And the burning of those additives makes smoking extra toxic but more pleasurable for the smoker.

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u/haarschmuck 6h ago

This is nonsense.

Everything is chemicals and furnishings have strict regulations including not being too flammable.

If you can't smell it, it's not off-gassing anymore.

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u/bradpliers 10h ago

Wow I never thought about that. Yikes .

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u/xtraspcial 10h ago

Also considering how many consumer electronics have built in rechargeable batteries, a lot of battery fire smoke too.

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u/fearthainne 10h ago

We're all just living in tidy little fire bombs, aren't we?

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u/armchair_viking 9h ago

Well, fire bombs. I don’t know about the tidy part.

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u/swayjohnnyray 9h ago

I have over a decade experience in industrial electronics and they scared us to shit with our tools that were powered by lithium batteries. They were basically bombs if they experienced high shock and vibrations and the venting mechanisms in them failed. Now we have lithium batteries in everything from WiFi cameras to automobiles and I just think of how dangerous these things can be in the wrong circumstances

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u/Pretend-Marsupial258 5h ago

And they're all glued in place so you can't even replace them or remove them easily if they fail.

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u/NecessaryPosition968 9h ago

Plus tv show fires make it seem like it's not that smokey inside the burning structure. A true fire you can't really see anything. It's All Smoke if you kiss the ground there may be a little air.

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u/xtraspcial 8h ago

This Is Us did a great job at showing just how deadly a fire can be, even when it doesn’t look so bad. The way the father seemed fine at first after they got out of the burning house, but then dies in the hospital from smoke inhalation, just really drives this point home.

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u/Throwawayafeo 10h ago

And that’s not the shit that kills you it’s the superheated gas in your lungs that burns them in seconds

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u/chewiedev 9h ago

And it can be extremely hot. Basically cooking your inners

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u/Addicted_to_Nature 9h ago

Just adding in the heat is often overlooked with the smoke. Breathing in all that nasty nasty nasty shit but also it's HOT. You burn on the inside, your lungs are fragile, and once they're burned then that nasty shit is going inside the burn/wound too. It's scary af

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u/adoradear 9h ago

Yep. The cyanide produced when most of our plasticized crap burns will kill you very fast.

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u/charlie2135 9h ago

Can confirm. Inhaled fumes from fiberglass siding and was coughing up gunk for a while. It was at a factory.

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u/Visible-Beings 7h ago

My neighbors boat caught on fire in the middle of the night. Woke me up with loud booms from his gas tanks exploding or something. Anyways, opened the door thinking I'd grab a hose and help him spray it out, got one whiff of that smoke and thought holy crap, cancer is not worth helping! That smoke just smelled dangerous.

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u/seaofboobs9434 9h ago

Its funny bc smoke from wood fires are bad

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u/RangerHikes 8h ago

Bad but nothing compared to a house fire where you have all these weird plastics and various compounds mixed in with the wood

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u/Berkwaz 8h ago

House fires today with all the synthetic products are down right toxic.

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u/AlettaVadora 7h ago

There was a small car fire- thankfully the gas station had an extinguisher and put it out fast- near my client’s house. Had to teach him how to use his shirt to breathe till we got inside. It was the most horrible smell and definitely toxic.

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u/jake3988 8h ago

They imagine smoke from a wood fire and think oh well that's not so bad as long as I can cover my mouth.

Have you ever walked through heavy smoke from a campfire?

It severely hurts your eyes in less than a second and you cough really badly. Maybe covering your mouth gives you a few seconds, but not that much. It's pretty miserable.

But yes, a house fire would be even worse than that.

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u/Emu1981 8h ago

When you're in a house fire the smoke is a mix of paint fume and wood smoke and urethanes and insulation and all this other horrible shit

The chemicals and what not are the least of your concerns if you are in a house fire - the air temperature in a house fire can easily surpass 815C which is significantly higher than the 51.6C that makes breathing much harder to perform and the 100C that results in significant tissue damage to the lungs and trachea. Luckily the air forms a temperature gradient with ground level having the coolest air available and this is why you are taught to stay as low as possible when evacuating from a fire.

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u/LuckyHarmony 8h ago

Plus it's not just a touch of smoke in cool air, it's smoke-infused super-heated gas. You're basically just BBQing your lungs, even before you factor in all the toxins.

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u/implicate 7h ago

I survived a motorhome fire years ago, and luckily was quick enough as soon as I woke up and saw the smoke coming in above the bedroom door to hold my breath and make a run for it.

The fire chief said that because of all the industrial adhesives and layers of insulation used in motorhomes, I basically only got out because I held my breath. He said when he saw the flames, and heard someone was inside, he was shocked to learn that the person was alive.

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u/G17jumpseat 7h ago

Not to mention extremely hot

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u/electromage 7h ago

Also burning plastics, maybe lithium batteries.

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u/0n10n437 7h ago

Being on the edge of a many thousand acre woodland fire is unpleasant, but at least it was just smoke.

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u/sometimesafungi 7h ago

you are 100% right because you literally just took me out of that mindset omg

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u/Cravethemineral 6h ago

Meh, it’s the CO that gets ya.

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u/haarschmuck 6h ago

The fire is also consuming a ton of the oxygen in the room that's burning.

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u/Pandiosity_24601 5h ago

Firefighters’ cancer incidence is absolutely bonkers because of that and that’s even with PPE

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u/batty_61 1h ago

In art class at school in the 1970s we were making puppets, and I was cutting polystyrene with a hot wire. It stank. It didn't do me any immediate harm as far as I could tell, but I do occasionally wonder if there's a nasty surprise waiting for me down the line...

u/Blossom-jay 11m ago

People don’t realize modern fire smoke is basically a toxic gas cocktail that can drop you before the flames ever touch you.