Patent ID: 8757154

Claim:
A portable air purification apparatus comprising: a power module with a common power interface; a first air compression module with a common air interface and a common power interface, wherein the air compression module provides a stream of air through its common air interface that substantially lacks buffeting; at least one filtering module with a common air interface; wherein the at least one filtering module, the power module and the first air compression modules are configured to connect together in series with one another so that the power module distributes electrical energy to another one of the modules through its common power interface and the another one of the modules is adapted to distribute electrical energy to a further one of the modules through its common power interface, and the at least one air compression module is configured to distribute compressed air to the at least one filtering module through their common air interfaces, wherein each of the common power interfaces and common air interfaces is configured to couple one of the modules to another of the modules; and a nasal mask configured to connect to the filtering module and direct compressed air into the nasal passages of a user.