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.
Typically, it has referred to the population living outside settlements of 1,000 or less inhabitants. The current definition states that census rural is the population outside settlements with fewer than 1,000 inhabitants and a population density below 400 people per square kilometre (Statistics Canada, 2007).