It is SO EASY to replace these filters when a car dealership or repair garage wants to charge you upwards of $150 to do this! Buy the filter on Amazon: amzn.to/3PLqFRU
What if something falls into the fan blade? I had critters under my hood in the winter and the filter looked like a tray of debris... There is now a serious buzzing noise when i turn the fan/ac/ heater on. I used my shopvac with a flexible attachment for between the seats and now the sound is lighter. Any suggestions beside waiting for the blades to come to a full stop before putting your hand in...grazed my wrist...dang