About: http://webisa.webdatacommons.org/249901161

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	With reference to the drawings and in particular to FIG. 1 thereof, the nose mask with an air filtering device according to the present invention mainly comprises a resilient clip 2, a filter 3, a flexible pipe 4 and a mask 5.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com