Within Laos approximately 60-70% of the population are said to be Theravada Buddhists, with the remaining population largely following Animism in the form of spirit (phii) worship.
Water purified for drinking purposes is simply called nam deum (drinking water), whether it is boiled or filtered.
The local currency is the KIP. Notes come in denominations of 100, 500, 1000, 2000, 5000, 10.000 and 20.000 Kips.