Pro-Pleat MERV 8 Pleated Air Filters (Case) 1  Sold by the Case. All sizes Nominal. 2  Low Initial Resistance: 0.20w.g. @ 500 FPM (2 Filters) 3  100% Synthetic Media is Unaffected by Moisture and Humidity. 4  Expanded Metal Media Backing Pleat Support. 5  High Strength, Moisture Resistant Die-Cut Paperboard Frame.
Noun [edit]. census â(plural censuses). 1  An official count of members of a population (not necessarily human), usually residents or citizens in a particular region, often done at regular intervals.oun [edit]. census â(plural censuses). 1  An official count of members of a population (not necessarily human), usually residents or citizens in a particular region, often done at regular intervals.
The census is a nationwide head count of every person residing in the United States. 1  The census counts every person who lives in the 50 states, the District of Columbia, and U.S. territories such as Puerto Rico and Guam.  The census counts both citizens and non-citizens, including undocumented immigrants.