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US 2021/0274876 A1Published application
Filter mask
AssigneeOmachron Intellectual Property Inc.
InventorWayne Ernest Conrad
Life of this patent
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Abstract
A filter mask for biological material is provided wherein the filter mask has a fan assist for inhalation.
Claims20
A filter mask comprising:
- (a) a mask body which, when worn by a user, abuts the face of the user and covers the mouth and nose of the user;
- and
- (b) a filter assembly that is suitable for having a filter media housed therein, the filter assembly having a port for airflow therethrough,
- wherein a first fan is provided downstream of the port in a direction of flow of air during inhalation and the first fan comprises a motor and a propeller.
1 more element
A filter mask comprising:
- (a) a mask body which, when worn by a user, abuts the face of the user and covers the mouth and nose of the user;
- and,
- (b) a filter assembly that is suitable for having a filter media housed therein,
- wherein the filter mask has an inhalation passage and an exhalation passage, the filter media is provided in the inhalation passage and a first fan is provided in the inhalation passage.
1 more element
A filter mask comprising:
- (a) a mask body which, when worn by a user, abuts the face of the user and covers the mouth and nose of the user;
- (b) a filter cartridge having first and second opposed sides and walls extending between the opposed sides wherein the walls and opposed sides define a cavity in which the filter media is positioned, the first opposed side has a first port for air flow therethrough, the second opposed side has a second side surface having a second port for air flow therethrough wherein, during inhalation, air travels from the first port, through the filter media and through the second port;
- and,
- (c) a fan provided downstream of the second port wherein the second port is provided on only one end of the second side surface such that the second port occupies less than 50% of the second side.
1 more element
Dependencies are inferred from the claim text.