At least some aspects of the present disclosure feature a convective system, comprising: an inflatable convective device and a hose configured to connect to the inflatable convective device to an inflation medium source. The convective device has a pneumatic structure and an opening into the pneumatic structure, where at least part of the convective device is air permeable. The hose includes a nozzle configured to insert into the opening and a hindrance device disposed on the nozzle, where the hindrance device is configured to prevent the hose from slipping from the opening.
