Normal saline is commonly used in artificial airway humidifying. 湿热交换器没有额外的水和热气，所以功效不如加热型增湿器。
The invention relates to a method for humidifying to air or natural gas by alcohol fuel and burning alcohol fuel by internal combustion engine. 本发明涉及一种用醇燃料对空气或天然气增湿，用于内燃机掺烧醇燃料的方法。
