Hi jpeck,
I’ve been using an Airchamber for a lonnnng time now, a bit of a fan, and I am happy to continue using it. Easy drive in/out but you cannot really work inside it.
The Airchamber’s real purpose is to keep air moving around a car and it does a good job. Rather like keeping vehicles in a draughty but dry barn. But, if you were to contemplate using an Airchamber primarily to keep the stonemason’s dust off your car then, whilst it will do a reasonable job, some of those dust particles will find their way through the filters in my opinion.
My brother in law keeps his Fat Boy in a Carcoon. Although not rigid it looks better made and the filters seem “better”.
Not sure where you are but if anywhere near Sutton Coldfield then you are welcome to call.
Hope this helps.