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.
Block text messages from email addresses. The majority of spam texts are sent out using a computer and an email account, as opposed to from another phone. If your carrier gives you the option, block ALL text messages sent as email. 1  Sprint customers can send the message âSPAM 6245â to 9999. 2  This will disable all email text messages. 3  T-Mobile customers can set up email filters through the My T-Mobile website.