| Subject | English | Spanish |
| agric., industr. | acetate filter rod | filtro de acetato |
| chem. | activated charcoal filter | filtro de carbón vegetal activado |
| chem. | activated charcoal iodine filter | filtro de yoduro de carbón vegetal activado |
| chem. | adsorption on silver zeolite metallic filter | adsorción sobre filtro metálico de zeolita de plata |
| environ. | aerated filter | filtro aireado |
| environ. | aerosol removal filter | filtro de aerosol |
| industr. | air-filter | filtro de aire |
| industr., construct. | air filter | depurador de aire |
| auto. | air filter housing | caja del filtro de aire (e.g. air filter box) |
| chem. | Allihn filter tube | tubo de Allihn |
| gen. | A/P2 filter respirator for organic vapour and harmful dust | respirador de filtro A/P2 para vapor orgánico y polvo nocivo |
| hobby, agric. | asbestos filter | filtro de amianto |
| chem. | ash-free filter paper | filtro de papel sin cenizas |
| chem. | ashless filter paper | papel de filtro sin cenizas |
| chem. | ashless filter paper | filtra sin cenizas |
| mun.plan., earth.sc. | automatic roll filter | filtro de desenrollamiento automático |
| chem., mech.eng. | back-up filter | filtro secundario |
| chem. | bag filter | filtro de bolsa |
| environ. | baghouse filter | cámara de filtros |
| tech., el. | band elimination filter | filtro de eliminación de banda |
| tech., el. | band elimination filter | filtro eliminador de banda |
| tech., el. | band elimination filter | filtro de supresión de banda |
| tech., el. | band elimination filter | filtro supresor de banda |
| tech., el. | band elimination filter | filtro de banda eliminada |
| chem. | band filter | filtro de banda |
| tech., el. | band rejection filter | filtro de banda eliminada |
| tech., el. | band rejection filter | filtro de eliminación de banda |
| tech., el. | band rejection filter | filtro eliminador de banda |
| tech., el. | band rejection filter | filtro de supresión de banda |
| tech., el. | band rejection filter | filtro supresor de banda |
| tech., el. | band-eliminating filter | filtro eliminador de banda |
| tech., el. | band-eliminating filter | filtro de supresión de banda |
| tech., el. | band-eliminating filter | filtro de eliminación de banda |
| tech., el. | band-eliminating filter | filtro de banda eliminada |
| tech., el. | band-eliminating filter | filtro supresor de banda |
| industr. | bandpass filter | bandpass-filtro |
| tech., el. | band-stop filter | filtro de banda eliminada |
| tech., el. | band-stop filter | filtro de supresión de banda |
| tech., el. | band-stop filter | filtro eliminador de banda |
| tech., el. | band-stop filter | filtro de eliminación de banda |
| tech., el. | band-stop filter | filtro supresor de banda |
| tech. | barrage filter | barrera filtrante |
| tech. | basket filter | filtro de canasto |
| tech. | basket filter | filtro de caja |
| med. | Berkefeld's filter | filtro de Berkefeld |
| environ. | biological filter | filtro bacteriano |
| ecol. | biological filter | lecho bacteriano |
| ecol. | biological filter | filtro biológico |
| ecol. | biological filter | biofiltro |
| environ. | biological filter bed | lecho de tratamiento biológico |
| tech. | biological filter medium | medio para filtro biológico |
| gen. | blockage of the filter | atascamiento |
| gen. | blockage of the filter | atasco |
| gen. | blockage of the filter | colmateo |
| gen. | blockage of the filter | obstrucción |
| tech. | box filter | filtro de canasto |
| tech. | box filter | filtro de caja |
| antenn. | branching filter | filtro de ramificación |
| mun.plan., earth.sc. | brush filter | filtro de cepillos |
| chem. | candle filter | filtro de bujía |
| agric. | candle filter | filtro de bujías |
| tech. | capacitor input filter | filtro de entrada capacitiva |
| mun.plan., earth.sc. | carbon filter | filtro de carbón |
| chem. | carboy filter | filtro para garrafa |
| mun.plan., earth.sc. | cartridge filter | filtro de alvéolos |
| mun.plan., earth.sc. | cellular filter | filtro de alvéolos |
| chem. | centrifugal filter | filtro centrifugo |
| earth.sc., mech.eng. | centrifugal type filter | filtro centrífugo |
| chem. | chamber filter press | filtro prensa de cámara |
| med. | Chamberland filter | filtro de Chamberland |
| chem. | charcoal filter | filtro de carbón vegetal |
| chem. | chemical filter | filtro de acción química |
| tech. | choke capacity filter | filtro de inductancia y capacidad inductiva |
| industr., construct. | cigarette filter | cigarrillo con filtro |
| gen. | cigarette filters | filtros para cigarrillos |
| industr., construct. | circular filter-paper | papel filtro en discos |
| chem. | cloth filter | filtro de paño |
| earth.sc., mech.eng. | coalescing type filter | filtro de coalescencia |
| commer. | coffee-filter | filtro de café |
| commer. | coffee-filter bag | manga para filtrar el café |
| gen. | coffee filters, electric | filtros de café eléctricos |
| gen. | coffee filters, non-electric | filtros de café no eléctricos |
| earth.sc. | cold filter plugging point | punto de obstrucción del filtro en frió |
| gen. | colorimeter with filters | colorímetro de filtro |
| earth.sc. | colour filter | filtro de color |
| earth.sc. | colour filter | pantalla de color |
| nat.sc. | colour filter | filtro de colores |
| agric. | composite filter | filtro multiple |
| agric., industr. | composite filter | filtro múltiple |
| agric., industr. | composite filter | filtro compuesto |
| environ. | contact filter | filtro de contacto |
| environ. | contact filter | lecho de contacto |
| med. | Coors filter | filtro de Coors |
| tech., el. | crystal filter | filtro de cuarzo |
| tech., el. | crystal filter | filtro piezoeléctrico |
| tech., el. | crystal filter | filtro de cristal |
| chem. | decontamination system drying air filter | filtro del aire de secado del sistema de descontaminación |
| gen. | detector filter | filtro para detectores |
| environ. | device equipped with a fixed filter for the continuous sampling of airborne atmospheric dust | dispositivo de toma de muestras permanente de polvo atmosférico en filtro fijo |
| meteorol. | diabatic digital filter | filtro digital diabático |
| meteorol. | Diabatic Digital Filter Initialization | inicialización con filtro digital diabático |
| antenn. | diaphragm ring mode filter | filtro de diafragma anular |
| gen. | diaphragm ring mode filter | filtro de diafragme anular |
| chem. | diatomite filter | filtro de diatomita |
| nat.sc., industr. | dilution air filter | filtro de aire de dilución |
| chem. | dilution air filter | filtro del aire de dilución |
| med., environ., food.ind. | Direct Epifluorescent Filter Technique | técnica de la epifluorescencia directa sobre filtro |
| med., environ., food.ind. | Direct Epifluorescent Filter Technique | técnica de epifluorescencia después de filtrado |
| chem. | disk filter | filtro de disco |
| earth.sc. | dispersion filter | filtro de dispersión |
| agric., industr. | double filter | filtro heterogéneo |
| agric., industr. | double filter | doble filtro |
| tech. | drain filter | filtro de drenaje |
| chem. | drum filter | filtro cilíndrico |
| agric., mech.eng. | drum filter | filtro de tambor |
| environ. | drum-type air filter | filtro de aire en forma de caldera |
| mun.plan., earth.sc. | dry layer filter | filtro de capa seca |
| chem. | dry pleated filter | filtro de pliegues |
| earth.sc., mech.eng. | duplex filter | filtro doble |
| environ. | dust removal by dry electrostatic filter | eliminación del polvo por filtro electrolítico seco |
| agric. | E.K.filter | filtro esterilizador |
| chem. | electrical filter | filtro eléctrico |
| chem. | electrostatic filter | electrofiltro |
| chem. | electrostatic filter | precipitador electrostático |
| meteorol. | ensemble Kalman filter | filtro de Kalman para conjuntos EnKF, por sus siglas en inglés |
| meteorol. | Ensemble Transform Kalman Filter | filtro de Kalman de transformación de conjuntos |
| environ. | exhaust air filter | filtro de aire de salida |
| tech. | external scavenge oil filter | filtro externo de recuperación del aceite |
| environ., industr. | fabric filter | filtro textil |
| mun.plan., earth.sc. | fabric filter | filtro de tela |
| mun.plan., earth.sc. | fabric filter | filtro de tejido |
| mun.plan., earth.sc. | fiber-pad filter | filtro de materia fibrosa |
| hobby, agric. | fibre pad filter | filtro de amianto |
| mun.plan., earth.sc. | fibrous filter | filtro de materia fibrosa |
| tech. | fill filter switch | interruptor del filtro de llenado |
| agric. | filler inlet filter | filtro de llenado |
| agric. | filler inlet filter | rejilla metálica |
| agric. | filler inlet filter | colador de llenado |
| earth.sc. | filter acting by mechanical means | filtro de acción mecánica |
| chem. | filter aid | coadyuvante de la filtración |
| chem. | filter aid | auxiliar de filtración |
| agric. | filter aids | materias filtrantes |
| chem. | filter alum | sulfato alumínico |
| tech. | filter amplifier | amplificador selectivo |
| tech. | filter amplifier | amplificador con acción de filtro |
| tech. | filter assembly | conjunto del filtro |
| industr., construct. | filter bag | bolsa filtrante |
| agric. | filter basket | colador de llenado |
| agric. | filter basket | filtro de llenado |
| agric. | filter basket | rejilla metálica |
| agric. | filter bed | depósito de decantación |
| water.suppl. | filter bed | lecho para filtrar |
| agric., mech.eng. | filter bed | capa filtrante |
| agric. | filter bed thickness | altura del bagazo en la tina de filtración |
| tech. | filter bleed valve | válvula de sangrado del filtro |
| industr., construct. | filter block of paper pulp | bloque filtrante de pasta de papel |
| industr., construct. | filter-board | cartón filtro |
| tech. | filter bypass valve | válvula de desvío del filtro |
| tech. | filter bypass valve | válvula de derivación del filtro |
| dril. | filter cake | revoque |
| chem. | filter candle | filtro Chamberland |
| tech. | filter capacitor | condensador de filtro |
| earth.sc., el. | filter capacitor | condensador de filtrado |
| tech. | filter capacitor | capacitador de filtro |
| auto. | filter cartridge | filtro tipo cartucho |
| nat.sc. | filter cartridge | cartucho filtrante |
| patents. | filter cartridges | cartuchos de filtro |
| nat.sc. | filter cell | cartucho filtrante |
| tech. | filter center | centro donde se evalúan antes de su diseminación las informaciones recibidas relativas al movimiento de aviones amigos o enemigos dentro de un determinado sector |
| tech. | filter center | centro de filtrado |
| tech. | filter center | centro de coordinación |
| chem. | filter chamber | cámara del filtro |
| earth.sc., el. | filter choke | reactancia de filtro |
| agric., industr. | filter cigarette | cigarrillo con filtro |
| tech. | filter circuit | circuito filtro |
| tech. | filter circuit | circuito de filtro |
| agric. | filter cloth | tela filtrante |
| knit.goods | filter cloth | tela para filtrar |
| gen. | filter collector | colector de filtro |
| earth.sc., el. | filter condenser | condensador de filtrado |
| chem. | filter conditioning and weighting | condicionamiento y pesado del filtro |
| chem. | filter cone | cono de filtración |
| chem. | filter crucible | crisol para filtrar |
| chem. | filter cup | cartucho de extracción |
| tech. | filter detecting system | sistema detector de filtro |
| construct. | filter drainage pipe | tubería de drenaje |
| earth.sc., mech.eng. | filter efficiency | rendimiento de filtración |
| chem. | filter element | elemento interior del filtro |
| nat.sc. | filter element | cartucho filtrante |
| tech. | filter element | elemento del filtro |
| patents. | filter elements | elementos de filtro |
| earth.sc., mech.eng. | filter filling material | llenado del filtro |
| chem. | filter flask | frasco de filtración |
| tech., chem. | filter funnel | filtro de embudo |
| knit.goods | filter gauze | tela para filtrar |
| med. | filter infusor | tubuladura para perfusión |
| agric. | filter layer | capa de drenaje |
| agric., construct. | filter layer | capa filtrante |
| industr., construct. | filter masse | bloque filtrante de pasta de papel |
| agric., construct. | filter material | capa filtrante |
| chem. | filter medium | material para filtrar |
| tech. | filter medium | medio para filtro |
| med. | filter of asbestos | filtro de amianto |
| tech. | filter-oiler | engrasadora de filtro |
| dril. | filter paper | papel filtro |
| chem. | filter paper | papel de filtro |
| chem. | filter paper pulp | pasta de papel de filtro |
| med. | filter-passer | filtrante |
| earth.sc., mech.eng. | filter performance | características de los filtros |
| chem. | filter plate | bandeja para filtración |
| agric. | filter press | filtro-prensa |
| chem. | filter press | prensa para filtrar |
| agric. | filter-press | filtro-prensa |
| agric. | filter-press | filtro de placas |
| energ.ind., el. | filter-press electrolyzer | electrolizador bipolar |
| energ.ind., el. | filter-press electrolyzer | electrolizador de tipo filtro prensa |
| gen. | filter presses | filtros-prensas |
| gen. | filter presses | filtros-prensa |
| earth.sc., mech.eng. | filter pressure drop | pérdida de carga de un filtro |
| agric. | filter pulp | pasta de filtrar |
| tech., chem. | filter pump | bomba de succión |
| chem. | filter pump | bomba de filtración |
| gen. | filter pump | bomba de filtrado |
| comp. | filter records | filtrar registros |
| earth.sc., mech.eng. | filter residue pump | bomba de pasta recuperada |
| gen. | filter respirator | filtro respiratorio |
| agric., mech.eng. | filter ring | anillo de filtro |
| tech. | filter screen | filtro de tela metálica |
| tech. | filter screen | rejilla de filtro |
| immigr., tech. | filter screen | plastificado de filtros |
| immigr., tech. | filter screen | laminado de filtros |
| tech. | filter screen | criba filtrante |
| agric., mech.eng. | filter sheet | cartón filtrante |
| industr., construct., chem. | filter sock | bolsa filtrante |
| agric. | filter stocking | manga de lienzo |
| tech. | filter tank | depósito filtrador |
| chem. | to filter through a sintered glass crucible | filtrar con filtro estrecho |
| agric., industr. | filter-tip | cigarrillo con filtro |
| agric. | filter tip attachment machine | maquina ensambladora |
| agric., industr. | filter tip attachment machine | máquina ensambladora |
| agric. | filter tip attachment method | colocacion del filtro por ensamblaje |
| agric., industr. | filter tip attachment method | colocación del filtro por ensamblaje |
| agric., industr. | filter-tipped cigarette | cigarrillo con filtro |
| chem. | filter tube | tubo para filtrar |
| tech. | filter type differential pressure regulator | regulador de presión diferencial de tipo filtro |
| nat.sc. | filter unit | cartucho filtrante |
| tech., chem. | to filter using a membrane filter | filtrar por membrana |
| tech. | filter valve shocks struts | válvula de llenado |
| industr., construct., chem. | filter vent | abertura del filtro |
| tech. | filter warning light circuit | circuito de las luces de advertencia del filtro |
| construct. | filter well | pozo filtrante |
| tech., chem. | filter with sinter disc | filtro de fondo poroso |
| chem. | filter with suction | filtrar con succión |
| gen. | filters for airconditioning | filtros de aire para la climatización aire acondicionado |
| gen. | filters for cleaning cooling air for engines | filtros para la limpieza del aire de refrigeración para motores |
| gen. | filters for drinking water | filtros para agua potable |
| gen. | filters for respiratory masks | filtros para mascarillas respiratorias |
| gen. | filters for ultra-violet rays, for medical purposes | filtros para rayos ultravioletas para uso médico |
| gen. | filters for ultra-violet rays for medical purposes | filtros para rayos ultravioletas para uso médico |
| gen. | filters for ultra-violet rays, for photography | filtros para rayos ultravioletas para fotografía |
| gen. | filters for ultra-violet rays, for photography | filtros para rayos ultravioletas para la fotografía |
| gen. | filters for ultra-violet rays, for photography | filtros para rayos ultravioleta para la fotografía |
| tech. | fine-mesh filter | filtro de malla fina |
| chem. | fluted filter | filtro de pliegues |
| chem. | fluted filter for rapid filtration | filtro plegado de filtración rápida |
| chem. | folded filter | filtro de pliegues |
| earth.sc. | fractional octave filter | filtro de octavas parciales |
| agric., mech.eng. | frame filter | filtro de tela |
| auto. | fuel filter | filtro de combustible |
| tech. | fuel heater strainer filter assembly | conjunto del filtro de malla del calentador de combustible |
| tech. | fuel pump control unit filter | filtro de la unidad de control de la bomba de combustible |
| earth.sc., mech.eng. | full flow filter | filtro de paso único |
| earth.sc., mech.eng. | full flow filter with bypass | filtro con derivación |
| earth.sc., mech.eng. | full flow filter with filtered by-pass | filtro con derivación filtrante |
| chem. | fused sintered glass filter plate | placa filtrante de vidrio sinterizado |
| environ. | gas filter | filtro de gas |
| industr. | geotextile filter | filtro geotextil |
| chem. | germ-proof filter | filtro de bacterias |
| agric. | germ-proof filter | filtro esterilizador |
| gen. | glas fibre filters used for sampling are calcinated at 250äC | los filtros de vitrofibra utilizados para las tomas se calcinan a 250o C |
| chem. | glass filter crucible | crisol de filtro de vidrio |
| chem. | glass filter crucible | crisol de Gooch |
| chem. | glass filter crucible with fused sintered glass filter plate | crisol de filtro de vidrio con placa filtrante de vidrio sinterizado |
| industr., construct., chem. | glass wool filter | filtro de lana de vidrio |
| chem. | glass-fibre filter | filtro de fibra de vidrio |
| med. | Gooch filter | filtro de Gooch |
| construct. | gravel filter | filtro de grava |
| life.sc., construct. | gravel-filter well | pozo con filtro de grava |
| dril. | gravel packed filter | filtro de grava |
| chem. | gravity filter | filtro de gravidad |
| tech. | gravity filter | filtro por gravedad |
| tech. | gravity sand filter | filtro de arena por gravedad |
| earth.sc. | haze filter | filtro de niebla |
| agric., industr. | heterogeneous filter | doble filtro |
| agric., industr. | heterogeneous filter | filtro heterogéneo |
| earth.sc. | high efficiency aerosol filter | filtro de aerosol de alta eficacia |
| environ., mech.eng. | High Efficiency Particulate Air filter | filtro de aire para partículas de elevada eficacia |
| dril. | high -filter-loss slurry squeeze | inyección de lechada de alta pérdida de filtrado |
| tech. | high pressure hydraulic filter assembly | conjunto del filtro hidráulico de alta presión |
| earth.sc. | high-pass filter | filtro de alta frecuencia |
| agric., industr. | homogeneous filter | filtro homogéneo |
| med. | household filter | filtro doméstico |
| tech. | hydraulic filter element | elemento del filtro hidráulico |
| tech. | hydraulic fluid filter | filtro de líquido hidráulico |
| tech. | hydraulic utility vent filter | filtro del respiradero auxiliar del sistema hidráulico |
| chem. | immersion filter | filtro de immersion |
| mun.plan., earth.sc. | impact filter | filtro de choque |
| environ. | impaction type filter | filtro de impacto |
| environ. | impingement-type air filter | filtro de aire de superficies de choque |
| chem. | incineration of filter paper | incineración del papel de filtro |
| med. | infrared filter | filtro IR |
| auto. | inlet air filter | filtro para el aire de admisión (evaporator, evaporador) |
| auto. | in-line filter | filtro en línea |
| earth.sc. | interference filter | filtro de interferencias |
| earth.sc. | interference filter | filtro de interferencia |
| antenn., opt. | interference filter | filtro interferencial |
| tech. | inverted flight propeller governor supply in line filter | filtro de la línea de abastecimiento del regulador de la hélice en vuelo invertido |
| med. | IR filter | filtro IR |
| tech. | iterative filter | filtro iterativo (filtro de cuatro terminales que presenta impedancia iterativa) |
| meteorol. | Kalman filter | filtros de Kalman |
| math. | Kalman filter | filtro de Kalman |
| industr., construct., chem. | kaolin wool filter pad | tampón de filtro de lana de roca |
| earth.sc. | K-edge filter | filtro de borde K |
| tech. | key click filter | filtro que atenua los chasquidos de manipulación |
| tech. | key click filter | filtro que elimina los chasquidos de manipulación |
| tech. | key click filter | filtro de manipulación |
| earth.sc., mech.eng. | kieselguhr filter | filtro de tierra silicosa |
| med. | Kitasato filter | filtro de Kitasato |
| chem. | light filter | filtro de la luz |
| mater.sc. | light filter respirator | aparato respiratorio filtrante |
| tech. | lubrication filter control | filtro regulador de lubricación |
| earth.sc. | Lyot-type filter | filtro tipo Lyot |
| chem. | macerated filter paper | pulpa de papel de filtro |
| chem. | macerated filter paper | papel de filtro macerado |
| tech. | main fuel filter | filtro principal de combustible |
| agric., mech.eng. | mash filter | filtro de mosto |
| agric. | mask with interchangeable filter | máscara con filtro intercambiable |
| chem. | material collected on a specified filter | materia recogida en un filtro especificado |
| earth.sc., mech.eng. | maximum permitted filter pressure drop | máxima pérdida de carga admisible |
| tech. | mechanical filter | filtro mecánico |
| chem. | membrane filter | dializador |
| chem. | membrane filter | filtro de membrana |
| chem. | membrane filter | filtro miliporo |
| chem. | membrane filter | aparato filtrante de membrana |
| life.sc. | membrane filter bioreactor | fermentador de membrana |
| food.serv. | membrane filter count | recuento mediante membrana filtrante |
| food.serv. | membrane filter count | recuento sobre filtro de membrana |
| med. | membranous filter | filtro de membranas |
| med. | membranous filter method | método de filtro de membranas |
| agric. | mesh filter | filtro de mallas |
| chem., el. | meter filter | filtro de contador |
| tech. | micronic filter | filtro micrométrico |
| dril. | micropore filter | filtro microporoso |
| agric. | milk filter | tamiz para leche |
| chem. | millipore filter | filtro miliporo |
| chem. | millipore filter | filtro de membrana |
| construct. | mineral filter | filtro mineral |
| tech. | minus blue filter | filtro del azul negativo (filtro para eliminar el azul del espectro electromagnético) |
| gen. | mode filter slot | filtro de modo en ranura |
| mun.plan., earth.sc. | moving curtain filter | filtro de desenrollamiento |
| environ. | multi-plate air filter | filtro de aire de láminas |
| earth.sc. | narrow band optical filter | filtro óptico de banda estrecha |
| nat.sc., tech. | neutral density filter | filtro neutro |
| nat.sc., tech. | neutral filter | filtro neutro |
| nat.sc., tech. | neutral grey filter | filtro neutro |
| earth.sc. | neutron filter | filtro de neutrones |
| tech. | noise filter circuit | circuito de filtro antirruido |
| nat.sc. | non-linear adaptive filter | filtro no lineal adaptable |
| agric. | nozzle filter | filtro de la boquilla |
| chem. | nutsche filter | nutcha |
| earth.sc., mech.eng. | oil bath filter | filtro por baño de aceite |
| tech. | oil filter | filtro del aceite |
| tech. | oil filter by-pass valve | válvula de paso de desvío del filtro del aceite |
| tech. | oil filter by-pass valve | válvula de derivación del filtro del aceite |
| earth.sc. | optical band pass filter | filtro óptico de interferencia |
| earth.sc., lab.law. | optical filter | filtro óptico |
| phys.sc. | optical filter with fixed air gap | filtro óptico de aire fijo |
| earth.sc. | orthochromatic filter | filtro ortocromático |
| environ. | other filter cakes, spent absorbents | Otras tortas de filtración, absorventes usados |
| environ. | other filter cakes, spent absorbents | Otras tortas de filtración, absorbentes usados |
| gen. | P2 filter respirator for harmful particles | respirador de filtro P2 para partículas nocivas |
| gen. | P1 filter respirator for inert particles | respirador de filtro P1 para partículas inertes |
| gen. | P3 filter respirator for toxic particles | respirador de filtro P3 para partículas tóxicas |
| gen. | paper coffee filters | filtros para café de papel |
| agric. | pencil filter | filtro de la boquilla |
| ecol. | percolating filter | filtro biológico |
| water.suppl. | percolating filter | filtro de goteo |
| ecol. | percolating filter | lecho bacteriano |
| ecol. | percolating filter | biofiltro |
| med. | percolating filter | filtro de percolación |
| tech. | percolation filter | filtro percolador |
| med. | Petri filter | filtro de Petri |
| chem. | phase separation filter | filtro de separación de fases |
| chem. | phase-separating filter | filtro de papel separador de fase |
| tech., chem. | photometer with filters | fotómetro de filtros |
| chem., el. | pilot filter element | filtro del piloto |
| agric. | plate and frame filter | filtro-prensa |
| agric., mech.eng. | plate and frame filter | filtro de placa y de tela |
| agric. | plate and frame filter | filtro de placas |
| agric., mech.eng. | plate filter | filtro de placa |
| dril. | plate-and-frame diatomaceous earth filter | filtro de tierra diatomácea de platos y marcos |
| chem. | plate-and-frame filter press | filtro-prensa de placas cuadros |
| tech. | platinum recovery filter | filtro para la recuperación del platino |
| chem. | pleated filter | filtro de pliegues |
| chem. | pleated filter paper | papel de filtro de pliegues |
| nat.sc. | polarisation filter | filtro polarizante |
| nat.sc. | polarisation filter | filtro de polarización |
| phys.sc. | polarising filter for microscopes | filtro polarizante para microscopios |
| tech. | polarized-screen filters | filtros de pantalla polarizada |
| agric. | polishing filter | filtro abrillantador |
| environ. | porous layer filter | filtro de capa porosa |
| environ. | porous wall filter | filtro de capa porosa |
| tech. | pressure filter | filtro a presión |
| pack. | pressure filter | filtro-prensa |
| chem. | pressure filter cell | célula para filtrar a presión |
| tech. | pressure sand filter | filtro de arena a presión |
| chem. | primary particulate filter | filtro principal de partículas |
| tech. | propeller unfeather pressure inline filter | filtro de la línea de presión para sacar de paso bandera la hélice |
| nat.sc., agric. | protective helmet with air filter | casco de protección con filtro de aire |
| insur. | prudential filter | filtro prudencial |
| agric. | pulp filter | filtro de pasta de celulosa |
| agric. | pulp filter | filtro de masa |
| avia. | radio noise filter | supresor de radiointerferencias |
| chem. | rapid filter | filtro rápido |
| industr. | receive filter | filtro de recepción |
| environ. | reverse-flow filter | filtro a contracorriente |
| earth.sc., mech.eng. | reversible oil filters | filtros de aceite recambiables |
| gen. | ring mode filter | filtro en anillo |
| tech. | ripple filter | filtro de ondulación |
| tech. | ripple filter | filtro de paso bajo |
| tech. | ripple filter | filtro contra el zumbido |
| mun.plan., earth.sc. | roll filter | filtro de desenrollamiento |
| chem. | rotary drum vacuum filter | filtro de vacío rotatorio |
| chem. | rotary drum vacuum filter | filtro de vacío rotativo |
| chem. | rotary filter | filtro rotatorio |
| chem. | rotary vacuum drum filter | filtro de vacío rotativo |
| chem. | rotary vacuum drum filter | filtro de vacío rotatorio |
| chem. | sack filter | filtro tubular |
| chem. | sample mass through the filter | masa de muestra filtrada |
| nat.sc., chem. | sampling filter unit | filtro para muestreo |
| industr. | sand filter | filtro de arena |
| tech., chem. | selective filter | filtro selectivo |
| agric. | self-washing filter | filtro auto-lavador |
| earth.sc. | sharp-cutting filter | filtro de corte agudo |
| agric., mech.eng. | sheet filter | filtro estratiforme |
| agric. | sicilian filter | filtro siciliano |
| chem. | sieve filter | filtro de tamiz |
| industr., construct., chem. | silica wool filter | filtro de lana de vidrio |
| earth.sc., mech.eng. | siliceous earth filter | filtro de tierra silicosa |
| agric., industr. | single filter | filtro homogéneo |
| chem. | sintered glass filter | filtro de vidrio fritado |
| chem. | sintered plate filter | filtro de placa sinterizada |
| tech. | sleeve filter | filtro de manga |
| earth.sc., mech.eng. | slot filter | filtro de malla |
| chem. | slow filter | filtro lento |
| environ. | soot filter | filtro de hollín |
| agric., chem. | spore filter | filtro antiesporas |
| dril. | standard API filter cell | celda de filtración estándar de API |
| agric. | sterilizing filter | filtro esterilizador |
| tech. | strainer filter | filtro de malla |
| chem. | suction filter | filtro de vacío |
| agric. | suction line filter | filtro de aspiración |
| agric. | tank filter | colador de llenado |
| agric. | tank filter | filtro de llenado |
| agric. | tank filter | rejilla metálica |
| chem. | tared filter | filtro tarado |
| agric. | taste of filter cloth | gusto a tela |
| agric. | taste of filter cloth | gusto de saco |
| construct. | textile bag filter | filtro de polvo |
| construct. | textile bag filter | colector de sacos |
| tech. | tracking filter | filtro seguidor |
| industr. | transmit filter | filtro de emisión |
| tech. | trickle filter | filtro percolador |
| ecol. | trickling filter | filtro biológico |
| chem. | trickling filter | filtro percolador |
| environ. | trickling filter A system of secondary sewage treatment which is similar to self-purification action of streams; it is more accurately a biological oxidizing bed; the effluent is placed on the stones in the bed and microorganisms present consume the solids as a food supply | biofiltro |
| environ. | trickling filter | biofiltro |
| water.suppl. | trickling filter | filtro de goteo |
| ecol. | trickling filter | lecho bacteriano |
| med. | trickling filter | filtro de percolación |
| tech. | tunable filter | filtro sintonizable |
| earth.sc., mech.eng. | two stage filter | filtro de dos compartimentos |
| earth.sc. | ultraviolet filter | filtro ultravioleta |
| industr. | upstream filter | prefiltro |
| tech. | UV-filter | filtro ultravioleta |
| tech. | UV-filter | filtro UV |
| environ. | vacuum filter | filtro de vacío |
| agric., mech.eng. | vacuum filter | filtro al vacío |
| chem. | vacuum horizontal filter | filtro de vacío horizontal |
| environ. | vertical-tube type filter | filtro del tipo de tubo vertical |
| mun.plan., earth.sc. | viscous filter | filtro viscoso |
| mun.plan., earth.sc. | viscous filter | filtro de impregnación viscosa |
| tech., el. | wave filter | filtro |
| tech., el. | wave filter | filtro de onda |
| med. | Wood's filter | filtro de Wood |
| agric., mech.eng. | wort filter | filtro de mosto |
| dril. | wound-fiber cartridge filter | filtro de cartucho de fibras bobinadas |
| construct. | woven filter material | material filtrante |
| tech., chem. | Wratten filter | filtro de Wratten |
| immigr., tech. | yellow filter | filtro amarillo |