Self-Adjusted Nitrous Oxide: A Feasibility Study in the Setting of Vasectomy

This feasibility study tests whether letting patients self-administer nitrous oxide (laughing gas) during a vasectomy — controlling their own dose via a mask — is practical and reduces discomfort during the procedure. **You may be eligible if...** - You are a man aged 21–85 scheduled for a vasectomy - You are medically suitable to receive inhaled nitrous oxide - You have access to an email and computer to complete study surveys **You may NOT be eligible if...** - You have facial hair that prevents a good seal with the gas mask - You have cognitive difficulties that prevent completing surveys - You plan to use sedatives or opioid pain medications for the vasectomy - You have specific medical conditions that make nitrous oxide unsafe Talk to your doctor to see if this trial is right for you.