This gift was given to me for my 4 year old daughter for Christmas. She adores me too! I tried several models without success: I suffer from recurrent sinusitis, and my daughter coughing due to allergies. I use essential oils (a few drops are enough) to offset our small ailments. The fuel tank capacity, we are quiet! It is not noisy. And the mode lamp / nightlight is simply the original product key. By mutual agreement we put it in the living room, but I think it will be necessary to acquire a second because we want each one in our room!