Abstract: An upper body undergarment with detachable handwears includes an undergarment arm sleeve, a hand cover garment, and a fabric-fastener as left and right arms of the upper body undergarment implement the same configuration within the respective components. The hand cover garment is removably attached with the undergarment arm sleeve through the fabric-fastener so that the user is able to attach or detach the hand cover garment upon his or her discretion.

Abstract: A microphone circuit control mechanism which is utilized to control the output of a microphone (20) disposed in a breathing mask (12) the microphone circuit extending to a communications device (22) and wherein the microphone circuit control mechanism includes a switch (86) in the microphone circuit, which switch can be toggled between "on" and "off" states in response to a drop in pressure within a pressure sensing chamber (44). The switch (86) is a single-pole double-throw magnetic reed switch which is disposed within the pressure sensing cavity (44), which cavity is in a demand regulator (14). The regulator includes a valve (27) capable of admitting air under pressure into the pressure sensing chamber when required. The magnetic reed switch (86) is toggled in response to movement of a magnet (112) carried by a portion (64) of a valve operating means (30) which portion moves in response to a drop in pressure in the sensing chamber (44).