Method "Poisonous" candle?

[Hel]

Hi, first time posting here.
I've been searching for methods for two years but everything is painful or difficult to get. I want to make it look like an accident as much as possible and not create a mess or a traumatic image. And I came up with something and I don't know how could it be done.
I am a big fan of candles, I have lots of them and I have asthma (it doesn't cause me troubles but a death for suffocation could be plausible in my case and people shouldn't wonder too much) so if I could find a way to "make" a poisonous candle or a way to create the CO effect with them without having to seal a room... The candle thing may be an stupid idea but if someone could tell me if there's a way to use them (I could made one myself if I had to use, I don't know, some kind of herb or something, I don't even know) to kill myself I would be grateful

 

[Hel]

This was my first post and I keep thinking about that. Would it be any method based on this? I could develop an interest on creating my own candles (i already love candles) and ooops, one time I use an ingredient that I shouldn't have used and dead. Unlucky accident. Is there any possibility? I don't even know how to research about it.

 

[Brick In The Wall]

I like your outside of the box way of thinking. This however seems like it would be a bit complicated. It would probably raise flags to investigators and I doubt anyone would believe it was purely an accident.

The only way I could see a candle being used to look accidental is if you knocked it over to start a fire. Many accidental fires are started by candles. Self immolation is probably one of the worst ways to go though, highly recommend against that.

 

[Hel]

I like your outside of the box way of thinking. This however seems like it would be a bit complicated. It would probably raise flags to investigators and I doubt anyone would believe it was purely an accident.

The only way I could see a candle being used to look accidental is if you knocked it over to start a fire. Many accidental fires are started by candles. Self immolation is probably one of the worst ways to go though, highly recommend against that.

Thank you.
No, I'd never start a fire, that must be an awful death and could hurt others, no, not my way to go. I need to keep looking.