Have you ever been asked, or ever wondered, âIs refrigerant, especially R-134a, heavier than air?â. Just this week I was asked this very question. Thinking I knew the answer right away, I was able to contain my natural, blurt-it-out style of an answer, at least until now.
Add a Contact to the Blocked List. Block someone from calling or texting you one of two ways: 1  To block someone who has been added to your phone's Contacts, go to. 2  The All Contacts window will appear where you can scroll through names to then tap the name of the contact you'd like to block.
People you block can no longer: You can block someone to unfriend them and prevent them from starting conversations with you or seeing things you post on your profile. See things you post on your profile. Tag you. Invite you to events or groups. Start a conversation with you. Add you as a friend.f the blocked person is ever included in a conversation with a group of friends, you may be able to see the messages. Remember, you can leave a conversation that you donât want to be part of, or delete a conversation that you donât like.