FAQ About Products Can wash the car's air conditioner? If you can wash, tell me the method. Interested in becoming a NORCA FOAM distributor? What to do? Is NORCA FOAM dangerous to the air con? I don't know if I can use foam to wash off oil stains or not. The kitchen has yellow stains from cooking oil. Can use foam to wash? How to clean the air conditioner? The air conditioner at home is very dirty. Really wash? Can you use foam to wash other stains? Can you use foam to wash other stains? I used it and didn't bite the fragrant hands as well, but I wondered if I could use anything else. Thank you in advance I bought foam but couldn't wash. Well, at home, you can hang up the air conditioner in a stand and hang, and will not be able to clean the filter. What should I do? How to help, please advise where to open it.