CHATEAU DE LION
Your N99 Mask may be reusable and washable but you still need to replace the inner filters after about 40 hours of use.
This one is the best with 5 layers of protection with an advanced carbon layer for extra protection against COVID-19 (Caronavirus) !
Purchase in bulk to save !
Get your replacement filters whiles supplies last ~
Please allow 2-3 weeks for delivery.