I can no longer burn candles - from cheap Glade to expensive Jo Malone. Something in them causes an allergic reaction. Same with all air fresheners, even the reeds.
I need to carefully research candles before buying. They have to be food grade oils with natural oils as fragrances. Even some natural burn soya candles set me off.
I'm currently burning NEOM and, don't laugh, Lovehoney's (the sexual happiness people!) candles - the ones you can burn then drizzle on your partner's skin! I was given a vanilla one as a "funny" Christmas pressie a few years ago and now buy them quite regularly. Beggars can't be choosers! While I quite like LED candles dotted around to make the place look warmer, I miss a real one so when I'm desperate, I can reach for one of these, safe in the knowledge that I won't have an allergic reaction.
Thanks for posting this - I know that some manufacturers have been putting warnings on their candles the last few years, but I don't know anyone who has actually seen them - most people have been quite shocked when I ask them not to burn candles or put air fresheners on when I visit. I particularly worry about children whose parents burn or use smelly stuff constantly. Can't be good for them.
ETA: I bought Poo Pourri (or something similar) as the "funny" Christmas gift for my friend last Christmas - we try to outdo each other with a small, but weird gift every year. We all trotted in for a whiff (the poo pourri, not with anything added!), and I had a reaction!