There should be either a foam or very fine mesh filter in front of the coil in the front of the unit. Either take the front cover off. It should be held on with spring clips or the filter may pull out of the top or side of the front cover.
Air conditioning filters have to be cleaned at least every three months. Dirty air conditioning filters can increase energy consumption of air conditioners.
Window and wall units
All of them
No. Window air conditioners are completely self contained.
yes
Most Spilt or Window Air-Conditionersdoesn't have any fresh air intake at all! ... These Air-Conditioners does have a purification system but it's only to purify contaminants in the air by means of filters, it doesn't make air any fresh.
Yes.
Usually the manner in which the unit vents. Window air conditioners are contained in a case that has vent holes on the top and side while wall air conditioners are vented in the rear.
Most air filters for car air conditioners are located behind the glove box
Air conditioners have filters so take the filters off and soak them in the tub with a degreaser dish soap. Clean up the rest of what you can on the air conditioner itself (if it's window installed) and spray it with Fabreeze and also give the filters a squirt of it as well. Remember, your air conditioner works hard, picks up odors and dirt, grease and impurities of all sorts so keep those filters clean!
False
Yes but you will probably have to install a service port.