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.
Blocking Unwanted Text, Email and Picture Messages. 1  1. Sign on to your Verizon account. 2  2. Click, âManage Verizon Safeguards,â from the âPlans and Services,â section. 3  3. Enter the 10-digit mobile number of the line to which you wish to block unwanted messages.