Half Face Helmet

I have two helmets (half face and full face) pero right now mas ginagamit ko yung half face helmet ko since work bahay lang naman ako (43 kms balikan to be exact). Mas nagagamit ko sya since mas comfortable sya and yung airflow is mas maganda as compared ss full face. Nagbabalak kasi ako mag long ride (186kms in total, Is it okay to use half face helmet on a long ride? Let me know your thoughts sa comments. Thanks in advance.