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.
How to Block a Number from Calling or Texting Your iPhone. To block someone so that they âcanât call or text youâ (see further down for why we put those in quotes), follow the below directions. How to Find and Block a Callerâs Number on Your iPhone. To find a callerâs number, click on your phone icon from your iPhoneâs home screen.