How to use respirator???

Hello,
i checked even WHO all general guidelines and faqs and i tried google. But i didn’t find anywhere how to use respirator. Any manual, or documentation what so ever! And respirator came with no user guide. It is important to know how to use it properly, otherwise it doesn’t work… Can you anyone link me info on: how to use respirator, i can’t find it anywhere! And than is also problem according: how to store it etc.
THANKS!

go to YouTube and search for how to use a respirator. There are many videos on that topic. That should help you