My window air conditioner is making myself and others sick

I do not assume why, however the air conditioner that is in our bedroom is very making myself and others sick. I hate that I have to stay with our parents again as an adult. Sure, I am not homeless plus I do have a house, but I am staying with our parents for a while on a supplier trip. I have been with our parents for a month, plus honestly, I cannot wait to go back home, however one of the worst parts about staying with our parents is the fact that they do not have a central air conditioner. At our house, I have a central air conditioner, plus I love the central air conditioner. I am so comfortable at our cabin because of the central air conditioner. The central air conditioner is so quiet, plus the central air conditioner works to keep the entire cabin cool. When I was growing up, there were only 2 air conditioners in the entire house. They had a window air conditioner in the family room, plus they had a window air conditioner in their bedroom. At least I have a window air conditioner in our bedroom now, but I am pretty sure that the window air conditioner in our bedroom is making myself and others sick. I do not assume if they haven’t’ cleaned the window air conditioner in a while, however whenever I am in our room, I assume weary, sick, plus stuffy. My throat plus nose even burn when I am in our room. I did not assume why at first, however eventually, I realized that it was the air conditioner. I do not assume if I can clean the window air conditioner, but I have to do something. What is the point of having an air conditioner if it makes myself and others sick?

central heater