Geoffrey N. Maksym,Ewan Kearney MacKenzie,Christopher Gordon Estkowski,Guy Drapeau
申请号：
US13697235
公开号：
US20130133663A1
申请日:
2011.05.11
申请国别(地区):
US
年份:
2013
代理人:
摘要：
A respiratory device filter (10) comprises a housing (12) having a mouthpiece (16) and a body (18). The housing (12) defines an inner sidewall (34) and a conical filter (14) is disposed within the housing (12). The conical filter (14) includes a first end that defines an apex (42) and a second end that defines an opening (44). An apex retention member (46) extends from the inner sidewall (34) and is secured to the apex (42) of the conical filter (14).
