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.
1 Go to Phone or Phone Settings and select Calls or Incoming Calls.. 2  Press Blocked Callers, Blacklist, Unwanted Calls, or another similarly named option menu. 3  Your contact list or phone book will appear; choose the name you wish to block, or manually enter the phone number you wish to block.ress the menu button on your phone, then go to Settings.. 1  Go to Phone or Phone Settings and select Calls or Incoming Calls.. 2  Press Blocked Callers, Blacklist, Unwanted Calls, or another similarly named option menu.