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Unfortunately one of those things was cleaning the shower, where I usually use a bleach based anti mildew cleaner because my bathroom is not well ventilated.

Important note: I have used this exact cleaner before many times and for long periods of time. it’s always been fine!

But today I had only just started to clean when the fumes became really overwhelming and hurt to breathe. So I jumped out and got some fresh air. But I had to finish cleaning so I did it in quick bursts and I opened the windows etc. But apparently that wasn’t enough, or the first exposure before I took steps was bad enough, cause the back of my nose/throat has been badly irritated all day

I’ve used this cleaner so many times, what could be different about today? The windows are so tiny, I can’t imagine they circulate air to any meaningful degree? I was running the dryer, but I don’t see how that would affect anything. I don’t think there would’ve been residue from any other products in the shower to combine w the bleach, certainly not anything out of the ordinary.