Cylinder-retaining apparatus for a breathing apparatus

A cylinder retaining apparatus for securing a cylinder to a breathing apparatus comprising:

• a frame comprising a first fixing point, a second fixing point, and a third releasable fixing point, the third releasable fixing point being located outside of the first and second fixing points, and being releasable from the frame;
• a strap apparatus secured to the first fixing point and the second fixing point and forming a main strap loop for extending around one or more cylinders, the main strap loop having an effective length between the first and second fixing points;
• an adjustment mechanism for adjusting the effective length of the main strap loop;
• a pulldown strap slidably secured to the main strap loop;
• and
• the cylinder-retaining apparatus is configurable in:
• i) a single-cylinder configuration in which the adjustment mechanism provides a first effective length of the main strap loop and an intermediate portion of strap is secured to the third releasable fixing point;
• and
• ii) a multiple-cylinder configuration in which the adjustment mechanism is adjusted to provide a second effective length of the main strap loop which is longer than the first effective length, the strap is not secured to the third releasable fixing point.