>>318908985
alcohol wipes id assume, if it has removable faceguard thing then remove that, rinse it under sink (assuming it isn't one of those things where hot water can ruin the glue of it or something) and then let it dry and finish the job with alcohol wipes, at least that's how i would do it you can also use some hand soap or something mild like that on it while washing it but i wouldn't put it into washing machine hand washing under sink should do the trick
if you mean on the plastic the definately just give it a good cleaning with alcohol wipes and maybe some anti bacterial spray or something