Patent ID: 7591870

Claim:
A retrofit installation kit for use with an air handling unit, comprising: a flexible filtration screen having a specified shape and size dimensioned to substantially cover an air intake opening associated with the unit; a set of retrofit fasteners substitutable for existing fasteners and engageable with manufacturer installed fastener mounts for securing together an outer sheathing associated with the unit, said retrofit fasteners additionally securing edge locations of said screen; each of said retrofit fasteners exhibiting a specified shape and size and further comprising a projecting base component secured to at least one associated fastener mount and adapting to seating through an aperture associated with a proximate edge location of said screen; and the substitution of fasteners precluding the possibility of such as damage to the unit resulting from drilling new fastener holes, including at least one of the rupturing of fluid transfer coils within the unit or damage to interior electrical or mechanical components.