How to clean a reusable HVAC filter
Depending on the filter media a soak and squeeze it out then put it back in some fiber filters you need to have 2 , pull the dirty one and put the clean one in now after cleaning in a week the fibers will be clean and dry , but if put in wet it can cause enough back pressure to rip the filter and on 1 or 2 models damage the blower motor. Some reusable filters do last for many years if regularly cleaned with non chlorinated water, I tell folks just put a few drops of jet dry in a gallon of distilled water this breaks the surface tension of the water and helps to remove any “dust” without harmful chemicals ,, heck you have it in your dishwasher to prevent spots, I have done this for years it helps to clean the 2 types of filters I have experience with. No comment for the - I give a +