Posting here as I can include pictures and links that work!
 
If you are looking for a good Airfed Mask search for 'Wilson Airfed Mask' on ebay (example below). You can get them for about £115.00. Cheaper than Maks and regulator from Machine Mart and industry standard. Filters and spare parts easy to obtain. Like visor covers.
 
http://cgi.ebay.co.uk/Willson-Sperian-Air-Fed-Mask-Air-Supplied-Respirator_W0QQi temZ260462088442QQcmdZViewItemQQptZLH_DefaultDomain_3?hash=item3ca4c010fa&_trksid=p3286.c0.m14
 
I use one on a 150L tank - will check cfm and post. You must ensure your compressor is well away from the area you are spraying.
 

 
When spraying also set-up good extraction - not a good example in the picture above but I am working on fabric so there is more spraying involved than onto metal RV's. Extracting the workshop should improve the paint finish!!!
 
Tim