PropertyValue
?:definition
  • Chemical fume hoods designed to filter the air exhaust and recirculate it into a room. These hoods typically include a set of filters that trap solid, liquid, and gas chemicals from the air, eliminating the need for outside venting and connection to ducts. The filters typically include a gross solids prefilter, a high-efficiency particulate-air (HEPA) filter, and additional filters (e.g., charcoal) for general applications (e.g., acid, organic products, particles, solvents) or chemical-specific filters (e.g., ammonia, formaldehyde) for particular uses (e.g., histology, forensics). Ductless chemical fume hoods are available in either stationary or mobile versions; they are used in laboratories, clinical pharmacies, and for some specific applications in clean rooms where limited quantities of chemicals are processed or where ducting is not feasible. Since ductless chemical fume hoods recirculate the filtered air in the room, they generally include alarms for hazardous concentrations of chemicals in the exhaust port.
?:hasCUIAnnotation
?:hasGeneratedBy
?:type

Metadata

Anon_0  
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://purl.org/net/provenance/ns#DataItem>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/2004/03/trix/rdfg-1/Graph>
<http://xmlns.com/foaf/0.1/primaryTopic> <https://research.tib.eu/covid-19/entity/C2720757_UMD>
<http://xmlns.com/foaf/0.1/topic> Anon_0
<http://www.ontologydesignpatterns.org/cp/owl/informationrealization.owl#realizes> <https://research.tib.eu/covid-19/data/entity/C2720757_UMD>
<http://purl.org/net/provenance/ns#createdBy>
Anon_1   (more)
expand all