Anti-Gas equipment.

Cotton pad mask and goggles.

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Introduced in May 1915.
The pad was soaked with Sodium Hyposulphite solution to try and neutralise the effects of Chlorine.

Smoke hood/Hypo helmet.

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Introduced in May 1915.
The cloth hood was impregnated with glycerin & Sodium Thiosulphate to protect against Chlorine.

Phenate Hexamine (P & PH) hood.

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"P hood" was introduced in October 1915.
Impregnated with Sodium Phenate and glycerin.

"PH hood" was  introduced in January 1916.  It had an improved solution of Sodium Phenate, Glycerin & Hexamethylene Tetramine.  protected against Chlorine and Phosgene.

Small Box Respirator (SBR).

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Introduced in August 1916.
Cloth face piece with a tube connected to a box filter.

Gave protection against higher concentrations of war gases.

Soldiers still carried a "PH hood" as back up.