prefilters
First-stage strainers
Prefilters are filters that remove larger particles or contaminants before material passes through a finer main filter.
In air purification systems, a prefilter catches dust and debris to extend the life of a HEPA filter.
In photography and audio, prefilters process signals before the primary filtering stage.
The verb prefilter means to apply such preliminary filtering: The system prefilters the water before reverse osmosis.
Particles settling in liquid
- particulatesMinute airborne solids or droplets
- contaminantsUnwelcome substances in something pure
- debrisScattered broken fragments
- screenDisplay or barrier
mesh · strainer · cartridge · sieve · barrier · coarse · impurities · retention
Enclosed heat-producing structure
- dustFine settled particles
- pollenFloral reproductive grains
- lintLoose textile fibers
- fiberglassReinforced woven strand composite
pleated · washable · electrostatic · intake · return air · ductwork · changeout · disposable
Particles settling in liquid
- coagulationLiquid solidifying into mass
- flocculationParticles clumping into aggregates
- chlorinationDisinfecting with a halogen
- aerationInfusing with oxygen
clarification · raw water · intake · backwash · multimedia · activated carbon · pretreatment · municipal
Request for information
- validationConfirming truth or accuracy
- sanitizationCleaning to remove pathogens
- middlewareInter-application bridging software
- preprocessingInitial data preparation steps
normalization · access control · whitelisting · blacklisting · regex · parsing
sediment
Particles settling in liquid
- particulatesMinute airborne solids or droplets
- contaminantsUnwelcome substances in something pure
- debrisScattered broken fragments
screen · mesh · strainer · cartridge · sieve · barrier · coarse · impurities · retention · permeability
furnace
Enclosed heat-producing structure
fiberglass · pleated · washable · electrostatic · intake · return air · ductwork · changeout · disposable · reusable
sedimentation
Particles settling in liquid
- coagulationLiquid solidifying into mass
- flocculationParticles clumping into aggregates
- chlorinationDisinfecting with a halogen
aeration · clarification · raw water · intake · backwash · multimedia · activated carbon · pretreatment · municipal · influent
query
Request for information
- validationConfirming truth or accuracy
- sanitizationCleaning to remove pathogens
- middlewareInter-application bridging software
preprocessing · normalization · access control · whitelisting · blacklisting · regex · parsing
optical
Of vision or light
- camera lensOptical focusing attachment