We need more information This article is a stub. You can help Gas Mask and Respirator Wiki by expanding it and adding more information to it.
Filters listed in this article are known to contain materials HAZARDOUS to health Exercise caution when handling and storing. Consult your health care professional if you have any concerns.
Please see the article below for further details of the exact nature of hazard. It is STRONGLY RECOMMENDED that you DO NOT attempt to use the filter(s) included in this article
The Small Box Respirator was a British manufactured mask, designed and entering service in 1916. It was a vast improvement from the PH Hood, as it used a hose and external filter design.
The mask was used by many members of the Entente. Its filter was capable of filtering out every German chemical agent used in the war, however it had shortcomings, including hte fact how one could not inhale through the nose.