FILTER PARTICLE SIZE REMOVAL EFFICIENCY

FILTER PARTICLE size REMOVAL EFFICIENCY . I) Objective Measure the PARTICLE REMOVAL EFFICIENCY vs. PARTICLE size for two types of filters or air cleaners: an electrostatic air cleaner and a cartridge-type media FILTER . II) Background Particulate air filters are used in buildings to remove particles from air streams. Traditionally they were used to reduce the PARTICLE concentration in the HVAC system to prolong the life of the equipment and to reduce maintenance costs. Presently, these filters are primarily used to control the PARTICLE concentrations in the indoor air for improved indoor air quality. particles are found in a wide range of sizes. Figure 1 shows typical size ranges in microns for various particles . Those larger than about 10 microns have settling velocities larger than 1. cm/sec. These particles do not remain airborne very long and tend to settle out on the bottom of ductwork and floors of the building.

5 - 1 FILTER PARTICLE SIZE REMOVAL EFFICIENCY I) Objective Measure the particle removal efficiency vs. particle size for two types of filters or air cleaners:

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  Efficiency, Size, Particles, Filter, Removal, Particle size, Filter particle size removal efficiency

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