Washable Electrostatic Furnace Filters - Use While Wet?

I've never seen a filter, on a residential AC

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A question not worth answering.

Why would any industry need a consistent message for dissimilar products? In fact, this company alone has various furnace filters with specs that range from "rinse once a month" to "lasts 90 days" to "lasts up to 1 year".

I have 2 dogs, a indoor/outdoor cat and 4 kids.

Of course. Past experience already tells me that "2X a year when the ambient temps are appropriate" will not be enough. There will still be periods during mid-winter in the north-east when the furnace will be cycling while the filter is drying, thus the reason for the question in my OP.

I have two separate systems with two washable furnace filters. I turn off the furnace, wash the filters, and set them outdoors in the sun for 2-3 hours. Setting them with one corner on the ground helps drain them quickly. After the 3 hours, I pick them up and swing any drops out and put them back and turn the system back on.

The filter will dry in minutes with the fan running. Don't worry about it.

replying to David Nebenzahl, r&nsnoq wrote: I clean mine quarterly - yes they collect dirt and it can be black, but if you clean them quarterly or even every two months they work great

replying to trader4, r&nsnoq wrote: The metal electrostatic reusuable filters work great for my allergies. The older the house, the more dust it collects. I clean mine quarterly, and if I get lazy, I regret it. I see a huge difference in the amount of dust in the house. The furnace guy said to use a product called DAX to best wash the filters. I used a diluted DAX in a spray bottle... if left too long, I had to clean 2 or 3 times. I let them dry because I always have -- not sure what's best. We just always let them dry -- and i put them in plain site so I nearly trip over them