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However, gas lighting is not very efficient. The problem is that, if a flame burns little oxygen, it produces a bright light but has a lot of smoke, and a smokeless flame, when there is excess oxygen is practically invisible. Music put on a happy face mask. In 1885, Wellsbach Freiherr von Welsbach proposed the use of an incinerator. A cloth bag soaked in a solution of inorganic substances (various salts). When burned, the cloth bag will burn and the remaining thin “frame” will glow brightly. Towards the end of the 19th century. Kerosene lamps appeared that we can still see today. Most of them are fitted with incineration nets that are now made of metal or asbestos.