There are a few alcohol options you can use for your essential oil spray. In our room spray recipe we include vodka, although another popular option is to use ethanol/grain alcohol or perfumers alcohol. Do not use rubbing alcohol or any other type of methylated spirit in your spray, as these are too toxic and could cause harm if inhaled or ingested in any way. Aside from that aspect, the odour is far from pleasant and would not mix well with essential oils.