You should have that done by a technician. It is illegal to charge a system without repairing leaks, and it is clear that you don't know how to do that.
This is a commonly asked question, but the simplest answer is: You don't recharge window air conditioners, since they are hermetically sealed at the factory and have no valves or ports for servicing...
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air can be ionized - yes. There is such a thing as an ionizer, which people believe ionizes dust particles, which then stick together, and fall to the ground, thus cleaning the air. The...