The increasing use of air-conditioned rooms in public entertainment venues but allowing visitors to smoke indoors makes some visitors feel uncomfortable. This final project aims to be able to design a carbon monoxide gas control device and carbon monoxide gas monitoring using IoT technology. The methodology for making this tool involves literature study methods in national journals an... https://www.parisnaturalfoodes.shop/product-category/baume-lip-balm-emu-oil/