i did make some chlorine peroxide once when i wasn't so experienced in chemistry. it was a sort of accident (wait, that had sodium hypochlorite in it??). i was looking carefully at my beaker when the reaction occurred, so i got a good breath of it in. of course, i jumped back. i ended up coughing for 2 minutes or so, followed by less frequent coughing and a bit of respiratory irritation. it could have been worse of course, but i didn't get pulmonary edema. both luckily and not so, i did this in my basement, where it is more or less dark, but has no ventilation. as a result, it was sketchy getting rid of the chlorine peroxide, but it did not detonate due to the lack of light. it diffused enough to not explode violently as it left the basement when i opened all the windows and doors in the house.
i do not wish to make that again anytime soon