To provide a noiseless, multi-purpose heating blower for air controlled Futon, capable of inducing deep sleep, which can be installed in any bedroom environments.

Using rectilinearity of sound reversely, air passages are formed with right-angled bends, and sound absorbing plates are provided to absorb sound, while a silencing chamber 21 is provided, so that blow noise of a sirocco fan 15 is eliminated. By provision of bar holes 8 for preventing intake port clogging at two positions, leg holes 9 for installation in a Tatami mat room at two positions, leg holes 10 for installation on a bottom of a bed at two positions, and leg holes 11 for reverse installation at two positions, it can be installed in any bedroom environments. To the air controlled Futon, warm air is made uniform in an air sump 22, and uniform warm air is sent from a large blow port and a small blow port.