Half-face mask assembly

Hard hat, especially for use with a breathing mask

Harness

Harness and seat board repelling system

Harness for a man carrying parachute including a mechanism...

Harness for a safety line

Harness for securing an object to a support and a method of...

Harness restraint system

Harness webbing protection system

Harness with adjustable means for supporting a tool belt

Harnesses for linesmen

Head covering assembly with face and visor seals

Head harness for a respiratory mask

Head protection device with respirator mask and optical shield

Head-pieces for pressurised clothing

Head-pieces for protective clothing

Headgear

Heart failure treatment method requiring set negative...

Heat and moisture exchanger and generator

Heat and moisture exchanging filters