Just ordered a water distiller for our home! While doing so, I learned that distilling water still may not remove some harmful VOCs so a post distillation charcoal filter is recommended when you know for a fact your tap water contains VOCs or when you want to be extra sure none will be present in the final product. I went ahead and picked up some charcoal filters for now to be on the safe side. It might be a little overkill but at least I'm prepared if something were to contaminate our tap water or if we ever needed to use an alternate water source in an emergency. I also purchased the 3 year extended warranty since I've read so many complaints about distillers in general not lasting as long as they should.