2. Once the mask gets wet, wet or used for four hours, discard it <br>. 1. Press the nose strip tightly to form a better seal and prevent fogging of the glasses
2. Once the mask is wet, wet or used for four hours, discard it.<br>1. Press the nose strip tightly to form a better seal and prevent the glasses from fogging.
2. Once the mask is wet, wet or used for four hours, discard it<br>1. Press the nose bar tightly to form a better seal and prevent glasses from fogging<br>