Patent ID: 11918946
Assignee: RE-U-ZIP, LLC
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 17:
18. A portable air filtration system, comprising:
a filtration unit comprising a housing, a primary filter, and a first connector, wherein the housing comprises a first end, a first opening at the first end, a second end, and a second opening at the second end, wherein the primary filter is connected to the housing such that an airflow entering the housing passes through the primary filter, wherein the filtration unit comprises a one-way valve;
a secondary filter removably connected to the first connector of the filtration unit; and
a second connector adapted to secure the filtration unit against a barrier, the second connector comprising a first side and a second side, wherein the first side of the second connector is removably connected to the first connector, wherein the second side of the second connector is adapted to be connected to the barrier.