Different models canisters are matching products customized by different gas defense performance requirements. They connect with gas-guide tubes and gas masks in use. Different models (mark numbers) canisters could be replaced directly in different toxic environments. Our products have obvious mark numbers with good toxicity filterability, small respiratory resistance and good gas tightness and our products are easy to replace. In toxic environment, if the toxic gas concentration is lower than 18% but higher than 2%, none of canister of filter type gas masks could play a protective role. In this case, it should be changed to use air supply type masks and oxygen supply type masks.
Filter type, standard color with the original standard table
Table 1 filter type and the original standard control
The performance and usage schedule of filter pieces (canisters and filter cartridges)
Note: The marks of filter pieces consist of type of filter piece (such as A type and B type, etc), level of filter piece (such as II grade and III grade, etc), gas filtering performance level (such as P1, P2 and P3). Letter P, D, Z and T respectively represents common filter piece, multi-functional filter piece, comprehensive filter piece and special filter piece.