Wearable device for delivering air

A personal portable respiratory apparatus to provide cleaned air to a user, the apparatus comprising:

• a flow generator including a blower, the flow generator configured to generate a filtered or conditioned flow of air;
• a personal spatial respiratory interface coupled to the flow generator, the personal spatial respiratory interface comprising an outlet for the flow generator, the personal spatial respiratory interface configured to direct the flow of air within a breathing proximity of a user;
• a set of filters comprising different types of filters for filtering the flow of air;
• and
• a controller configured to determine filters in the set of filters for filtering the flow of air based on received data that is associated with aspects of the air in the user's environment,
• wherein the personal portable respiratory apparatus is configured to communicate with a remote smart phone or tablet so that the smart phone or tablet operates to control the flow generator.