Answers
Jul 21, 2020 - 10:45 AM
Hello. The main filter is replaceable and the port valve has a built-in plastic filter.
Thanks.
Thanks.
Do you have the same question? Follow this Question
Jul 21, 2020 - 10:45 AM
View all Washable Face Mask Reuseable Cotton three layers w valve and PM2.5 Filter Questions & Answers