Asphyxiant Gas Puns

This is for a book I'm writing that's going to be published sometime soon.

How much asphyxiant gas (specifically argon if it's appropriate) in an atmosphere would be enough to kill someone overtime? If there was a small amount in the air always, would you die eventually?

Edit: I should have specifically talked about heavier than air gasses like Argon, or even more so, Sulfur hexafluoride.

Why YSK responding appropriatly can save your life and possibly others. If asphyxiation is suspected immediatly leave the area and call emergency services. I saw a post (warning NSFL) where a guy jumps into a murky well and does not surface. The presumed context was high CO2 concentration. Someone said that the cameraman's inaction likely killed the swimmer. THIS IS UNTRUE AND VERY DANGEROUS INFORMATION. Inert Gas Asphyxiation IS DEADLY! With inert gasses there is no scent or visable warning. 1 or 2 breaths is all that is needed to become unconscious. Without proper breathing equipment any attempt at recue can become immediatly fatal. A family of four and 1 farm hand died as a result of "domino effect" as each person attempted to save the last in a dairy farm manure pit. You should know about the danger of inert gas asphyxiation as it can save lives. In training for these situations it is common to be told if someone succumbs to a potential gas leak to assume they are dead and to leave the area before you die too. Be safe out there.

Edit: spelling and grammar

Edit: A lot of people are asking if they can hold their breath and help the other person. The answer is yes (/s), IF YOU WANT TO DIE. You cannot lift and carry a human person up stairs ( or possibly down) while holding your breath. The training is always clear. DO NOT ENTER (without SCBA) OR ELSE YOU BOTH DIE.

Edit: Can anyone find the gif where the old white guy throws a flare into a hole and all the villagers watch as the smoke settles at the boundary of the gas layers? I thought that would be a good visual for people and I've seen it in the front page before but cant find it anywhere.

Examples in nature:

Mazuku - Deadly CO2 Pockets Found by u/Chumpk1ller

The Lake Nyos Disaster killed 1,700 people in the 1980's commented by u/growwwwler

I got a couple of chioces between Nitrogen, argon and helium,argon is 20L and keep in mind Nitrogen being pure 100% with 9litres

I know this sounds dumb, but it’s true. Due to the sensitive nature of this topic, I am unable to discuss this issue with my friends, so I turn to the anonymous Internet. Throwaway account because my boyfriend knows my real account.

I recently started trying to eat more healthy. I am a vegetarian, and this means eating a lot of vegetables. However, this has given me horrible gas. We spend most of our free time together, so this has led to me passing gas in his presence. To be fair, it’s really bad even to me. But, I also want to continue eating vegetables, for obvious health reasons. We’re both in college and our living space is a one-room space, so it’s not like I can be in another room for a while every day but still spend time with him. This is a recurring problem, though, and I feel bad for making my boyfriend suffer through this (also he’s expressed how he’s getting annoyed by it). How do I balance not suffocating my boyfriend with my horrible gas and still maintaining a healthy diet that includes vegetables?

Let me preface this with the statement that I have no intention of using this information, for myself or anyone else. It is simply a matter of curiosity.

I saw a documentary on supervised voluntary euthanasia and it said something about helium-based "exit bags" caused a death that appeared to be of natural causes, given that the supplies were removed by the supervisor. Is this true, even if the body is autopsied? Would they have to look specifically for gas-asphyxiation to realize the person has suffocated, as there would be no other "classic" signs of asphyxiation?

To my understanding, inert gas asphyxiation (nitrogen, argon) is completely painless and merely leads to loss of consciousness followed by death. They could even be anesthetized beforehand (even with a gas mask, perhaps?). And I can't imagine a mask of nitrogen being more expensive than the chemical cocktail that's in current use.

EDIT: Sorry if this seems like more of an AskScience question. I'm more wondering if there's some social cause behind this. Like the similarity to gas chambers or perhaps certain chemical companies get a subsidy for this kind of thing, etc.

Stuart Pearce (33yo), Meredith (31 years) and their four children, Adam (11 years), Travis (9 years) Matthew (8 years) and Kerry (2 years) lived in a quiet house on Jackson Street, Parafield Gardens, in the North Western suburbs of Adelaide.

Saturday the 5th of January 1991 was a day like any other. After having dinner and putting the kids to bed, around 9pm, Meredith Pearce took a phone call from her sister. She made sure to speak quietly as her husband slept before starting his midnight shift at Wingfield BP fuel station. While Meredith chatted with her sister, she gave no indication that anything was wrong or that she and her family were under any threat.

Apparently everything was fine, as Stuart followed his usual routine when doing a midnight shift, which was to wake up around 10pm, have a meal, shower then drive the roughly 15 minutes to Wingfield to start his midnight shift.

The next morning, on Sunday the 6th of January 1991, Metropolitan Fire Service was called to the Pearce family home to find it ablaze. The fire had been reported at 7:17am, Stuart’s nightshift ended at 6:50am. The bodies of Meredith, and three of their three children, Adam, Travis, and Kerry, were found after the fire was extinguished. Matthew, luckily, had spent the night at a friend’s house.

Meredith Pearce was found in her bedroom tied to a chair, she had a towel stuffed in her mouth, and was strangled with an electrical cord. The media reported that Adam and Travis had also been tied to chairs and had been asphyxiated by having plastic bags cover their heads. 2-year-old Kerry was reported to have been smothered to death. Autopsies revealed the family had died before the fire had been lit.

Police speculate that Stuart murdered his family before going to work. During their investigations, it was revealed that gas bottles had been set around the house on the night prior to the fire, but these failed to explode. Police suspect that Pearce returned home after his night shift and used other accelerants around the house to set the fire, before fleeing to dump his car.

Stuart’s distinctive white 240K Datsun coupe was found dumped at Arndale shopping Centre in Kilkenny, which is around 13km (8 miles) from the family home (and 4.9km [3 miles] from his workplace). Meredith’s blood was found in the boot of the car and on a door trim. Police believe that her blood was most likely transferred to the car from Stuart.

A Police search of the property during their investigation reve

Who is the most powerful character that can be asphyxiated or defeated with nerve gas?