If you're referring to these: https://www.amazon.com/Automatic-Purifier-Solution-Breathing-Comfortable/dp/B08RMRC3QK/ref=sr_1_1_sspa?dchild=1&keywords=micro+cpap&qid=1621523515&sr=8-1-spons&psc=1&smid=A2C339IDGGNDC7&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyM1U3RjBJTlkzS0RKJmVuY3J5cHRlZElkPUEwODgyNDU4VkhDV0o1WVdCUk43JmVuY3J5cHRlZEFkSWQ9QTAxNTk4ODUxTDNTREE1MkZFOTA2JndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==
Then, of course they are garbage and do nothing.