Air Filter Maintenance Record Chart 

Prefilter                     Initial Resistance ______ " w.g.	Final Resistance ______" w.g.
		Description ________________________________ Size _______________
Final Filter:	Initial Resistance ______ " w.g.	Final Resistance ______" w.g.
		Description ________________________________ Size _______________
		Grease ______________ Size _______________ Other ________________
		Belt ___________________

Key: PFR = Pre-Filter Resistance; FFR = Final Filter Resistance; TR = Total Resistance; CB = Checked By; G = Grease; B = Belt

Air Filter Maintenance Record Chart Courtesy of R.P. Fedder Corporation