Abstract: A method for extracting broad-spectrum cannabis oil from industry hemp includes the following steps: the hemp leaves, flowers drying, crushing to obtain the material powder, the material powder was extracted by ethanol with concentration value of 60-95%(V/V) to get extract, then do the process of concentration, decarboxylation, using short-range molecular distillation to remove impurities, distillation liquid winterization, pressure filtration to remove wax, filter solution into the column to remove impurities, purification, separation. The purified ethanol chromatographic solution to be concentrated in order to remove alcohol and water product namely the broad-spectrum hemp oil, this method may obtain the product of tetrahydrocannabinol (THC) content can control below 0.1%, the product safety is high, completely satisfies the industrial production.

Abstract: Various embodiments provide a slim range hood, including: a box body having an internal circulation air outlet; and a fan assembly arranged in the box body and including a volute and an air guide cover. The volute includes an air inlet part and a first air outlet part connected to an air outlet of the air inlet part. The air guide cover is detachably mounted at an air outlet of the first air outlet part and is configured to guide an air flow sucked in by the fan assembly to the internal circulation air outlet. With the slim range hood, a design of matching the volute with different air guide covers is realized by mounting the detachable air guide cover at the first air outlet part, different product structure sizes and air outlets of different sizes are satisfied, and different types of products have the same core component.

Abstract: Various embodiments provide a slim range hood, including: a box body having an internal circulation air outlet; and a fan assembly arranged in the box body and including a volute and an air guide cover. The volute includes an air inlet part and a first air outlet part connected to an air outlet of the air inlet part. The air guide cover is detachably mounted at an air outlet of the first air outlet part and is configured to guide an air flow sucked in by the fan assembly to the internal circulation air outlet. With the slim range hood, a design of matching the volute with different air guide covers is realized by mounting the detachable air guide cover at the first air outlet part, different product structure sizes and air outlets of different sizes are satisfied, and different types of products have the same core component.