Car Storage Bag

I purchased this storage bag from California Car Cover. It is a great solution to mice, spiders,dust and most of all,moisture. It has a built in rust inhibitor and dessicant. You actually put the car on top of the bottom, and then zip up the side and ends. I will report back in May to let you know if it lives up to its claims!

Scott has one I think.............. loves it..... not sure if the same brand, though.

No - no fan. You don't want air getting in............. the desiccant keeps it dry inside.
The car is supposed to be totally dry and clean when you zip her up.
In this case, "fresh air" is bad as it can introduce moisture.
Scott has had his for a couple of years, I think - he's posted about it here before. Might do a search under ohio's user ID for similar terms, probably cover "all time" as I think he posted recently as well, but know he did a year or more ago.

been using one for a couple years. It's great. No dust, no mice,  even the rotors are nice and shiny. Got mine online from   Carbag.com   think it was a couple hundred bucks and they include enough desiccant for the first time then you can regenerate in the oven . Works perfect!

There's another sort with the re-usable and "dryable" desiccant. That would be my option.
Of course, it can be purchased from other sources.
Around here, their desiccant would last perhaps one season at best. The last couple of days have been fog and wet concrete due to very high humidities, and in the fall when you store these things, the atmosphere is usually saturated as well.
The sort I looked at a year or so ago was about $325-350 for a Javelin size.
The reason I do not use one myself is that winter is when I get to work on the car. In fact, once I get an air cleaner, the hood will be open for a manifold swap again, among other repairs. I use November through March for working on the car when I can, the exact times most of you will store your cars in these bags.
Otherwise, consider me to be "all for these things!"