?老虎仔?

我又搭單一問, 個Canister用幾耐會過期?
而過左期會唔會放出有毒物質?
thanks

?老虎仔?

引用:

原帖由 jwlchan 於 30-7-2008 19:26 發表


If the canister is only to use to filter CS gas then it could be use for ever....However, if this is going to use for real Chemical defend then it need to change every few hours.....you also need  ...

原來係咁~ thanks