The function of the exhaust silencers is to reduce the noise level to an acceptable value to avoid the risk of ear damage when exposed to such noises for long periods. The drawback of the presence of asilencer is the high back pressure created due to restricting the gas flow or according to the pressure drop in the attenuating elements within the silencer. This investigation covers th... https://parisnaturalfoodes.shop/product-category/dandelion-leaves/