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Ingestion is dangerous, in general, formalin is often used in cosmetics in a less concentrated state (about 0.5-2% of the concentration). In this case, we get a 50% formalin solution, which guarantees a momentary effect in eliminating an unpleasant odor. This concentration can easily be reduced to 10-20%, which will also give a result. To work necessarily on the street
Stop Smelling Shoes and FeetView Instructable »
Something small, at 220 volts. Probably from an old washing machine.
16 Tons Hydraulic Press
Angle Grinder Machine Stand...View Instructable »
Real Outdoor CookingView Instructable »