1.   After his arrest on charges of reckless endangerment, Deily told the authorities the canister contained oxygen.

2.   Even after the expiration date, full canisters contain hazardous chemicals that, when activated by pin triggers, heat up and produce oxygen.

3.   Every canister tested contained some albuterol, he said.

4.   He could not say whether the gas canister contained markings that would make it easy to trace to its supplier.

5.   In some cases the canisters contained black powder, but could not be detonated, the officials said.

6.   Officials said that during questioning he had told the police that the canister did not contain any sarin gas.

7.   The canister contained a powdered protein supplement.