Condensers cool vapors emitted from heated fluids to change the physical state back to liquid. With a fast coolant speed, the glass manufactured devices use straight, coiled, or spiraled circulation cooling methods. Styles may feature an inner or outer jacket for more efficiency. Although condensers are mostly used with organic substances, certain air conditioner models may accommodate volatile substances. The air conditioning equipment has top and bottom joints in standard sizes to fit in testing apparatuses correctly.