HEPA
Traps tiny particles
HEPA stands for high-efficiency particulate air, describing a type of filter that captures at least 99.97% of airborne particles.
HEPA filters appear in vacuum cleaners, air purifiers, and medical settings where air quality matters: The allergist recommended a HEPA filter for the bedroom.
The term functions as an adjective: HEPA vacuum, HEPA-certified.
Fine settled particles
Porous separation device
- purificationRemoval of contaminants
- efficiencyProductive without waste
- micronMillionth of a meter
- captureTake into custody
pre-filter · ultrafine · particulate · mesh · membrane · cartridge · replacement · airflow
Medical treatment facility
- sterileFree from microorganisms
- isolationComplete separation from others
- immunocompromisedReduced ability to fight infection
- pathogenDisease-causing microorganism
bacteria · virus · contamination · aseptic · surgical · laboratory · pharmaceutical · biocontainment
Absence of matter
- cleanerAgent that removes dirt
- fanAdmirer or air mover
- humidifierMoisture-adding appliance
- dehumidifierDevice reducing air moisture
portable · room · tower · compact · quiet · energy-efficient · Dyson · Honeywell
dust
Fine settled particles
filter
Porous separation device
- purificationRemoval of contaminants
- efficiencyProductive without waste
- micronMillionth of a meter
capture · pre-filter · ultrafine · particulate · mesh · membrane · cartridge · replacement · airflow · bypass
hospital
Medical treatment facility
- sterileFree from microorganisms
- isolationComplete separation from others
- immunocompromisedReduced ability to fight infection
pathogen · bacteria · virus · contamination · aseptic · surgical · laboratory · pharmaceutical · biocontainment
vacuum
Absence of matter
- cleanerAgent that removes dirt
- fanAdmirer or air mover
- humidifierMoisture-adding appliance
dehumidifier · portable · room · tower · compact · quiet · energy-efficient · Dyson · Honeywell
- air filtersair filter, carbon filters, carbon filter, prefilter, pre-filter
- Cleanroomsbunny suit, laminar flow hood, anteroom, sticky mat, positive pressure
- filter mediaactivated carbon, filter paper, diatomaceous earth, zeolite, charcoal filter
- respiratorsrespirator, N95, dust mask, gas mask, half mask
HEPAunfiltered
Not passed through screen
no filter · open air · mesh screen · window screen · cheesecloth
- hepatitis CViral liver inflammation, specific strain
- hepatitis BViral disease attacking liver
- HEPA filterHigh-efficiency particulate trapper
- viral hepatitisLiver inflammation from infection
- HEPA vacuumFiltered dust-removal appliance
- hepatitis vaccineImmunization against liver inflammation