Non-invasive respiratory support plays an essential role in the treatment of COVID-19, and more awareness is needed regarding the increased risk of viral transmission from exhaled air. Medical staff should utilise personal protective equipment when providing respiratory support therapy. Patients should wear a medical mask when receiving conventional oxygen therapy or HFNC in order to reduce air dispersion. When performing NIV therapy, because helmet resources are limited and they are not frequently used in routine clinical practice, we suggest avoiding masks with vent holes and adding a filter between the mask and the vent valve to reduce viral transmission. Patient beds should be at least 1 m from one another and the ward air circulation rate needs to be increased [7]. For patients with suspected COVID-19 infection receiving long-term respiratory support at home, it is recommended that they stay in a single, well-ventilated room to avoid potentially infecting their family members.