Installation Steps: Tighten the upper and lower shells with both hands, do not use brute force or hardware tools such as wrenches to operate; Do not tighten the air pipe locking nut too tightly, otherwise the air pipe will be damaged. Just a little bit tightness. Eco-friendly: The use of reserve penetration technology to diffuse CO2 can increase the dissolution effect and save the use of CO2, which is more environmentally friendly. Good Atomization Effect: Reverse osmosis atomization tube, lower pressure requirement, finer atomization effect, only need pressure above 0.12mpa to get air out. The use of tubular atomizing core brings a larger atomization cover area compared with traditional ones. High Quality: Made of high-grade materials, non-toxic, safe, energy-saving and durable, for long term use. The design of a safe nut lock system can effectively lock the CO2 pipe and water pipe to prevent loosening. Kindly Note: The external atomizer will make a slight squeaking sound during use. This is not a leak, but the sound of CO2 gas after atomization.