Air filter for NEC projector LT280, LT375, LT380 LT380G, VT470, VT670, VT670K, VT675, VT676, VT676E, VT676G Air filter for NEC projector LT280, LT375, LT380 LT380G, VT470, VT670, VT670K, VT675, VT676, VT676E, VT676G THE SIZE IS AROUND 10CM x 10CM (3.9INCHES x 3.9INCHES). THIS IS GENERAL AIR FILER. NEEDS TO CUT THE SIZE AND FIT INTO YOUR PROJECTOR AIR FILTER FRAME