I stand corrected Stella, the MSDS I was reading last night is not the same MSDS that you have posted. On the other hand – the MSDS you did post … 3. HAZARDS IDENTIFICATION Toxicity: May cause eye and skin irritation. May irritate lips, gums, tongue, mouth, nose and throat. ****When this product is exposed to moisture, acetic acid may be formed. May irritate respiratory system upon frequent or prolonged use. 8. EXPOSURE CONTROLS/PERSONAL PROTECTION Eyes: Safety glasses. Skin: Neoprene or nitrile gloves recommended. Ventilation: General; local exhaust ventilation as necessary to control any air contaminants to within their exposure limits (or to the lowest feasible levels when limits have not been established) during the use of this product. Respiratory Protection: An approved organic vapor respirator should be worn when exposures are expected to exceed the applicable limits. I only bring this up, because I can see many of us using our children and grandchildren to do our wicking for us. I can picture their little noses right up against that container making sure the wick is perfect, and breathing in unacceptable concentrations of this product. Do not treat these chemicals lightly. The manufacturer recommends using in a well ventilated space or using an organic respirator. … and this is for approved uses. If you’re going to be using this product, as I soon will be, for an unapproved use - I think it is better to err on the side of caution. Just to clarify, I’m not trying to dissuade anyone from using this product. Just use responsibly. This means using in a well ventilated room OR using a respirator