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.
If you want to block text messages from a number that hasn't sent you any messages recently, you can block it from your Contacts list instead. 1  Launch the Settings app. 2  Scroll down and navigate to Phone Blocked Add New...3  Search for and tap on the contact you'd like to block from your contacts.f you want to block text messages from a number that hasn't sent you any messages recently, you can block it from your Contacts list instead. 1  Launch the Settings app. 2  Scroll down and navigate to Phone Blocked Add New...