Armstrong's Service	The Competition
Vacuum System - Negative Air Machine	Portable Power Vacuums Operating at an effective 5,000 CFM - Truck Mounted at 12,000 CFM	Rotobrush system at 450cfm
Brushing System	Motorized Brushes	Rotobrush Built In
Brushing System 2	200 PSI Power whip	None
Brushing System 3	200 PSI Air "knife"	None
Access holes made to allow for cleaning and removal of debris	10x10 to 12x12 then covered with an access panel	1" Holes covered with a plastic plug
A/C Coil	Included	Extra Charge
Blower Unit Cleaned	Included	Extra Charge
Heat Exchanger Cleaned	Included	Extra Charge
Both main duct work and zone dampers cleaned	Included	Extra Charge
All vents cleaned	Included	Extra Charge