Is it dangerous to use an old gas mask as an halloween mask?

Im thinking of ordering one to use as an halloween mask, but the store warns that the filter is old etc. Is it dangerous? or:I'm thinking of ordering

I'm thinking of ordering one to use as an halloween mask, but the store warns that the filter is old etc. Is it dangerous?

or:I'm thinking of ordering one to use as an halloween mask, but the store warns that the filter is old etc. Is it dangerous?

or:yes its dangerous

Tags:filter,