Do I need to replace the valves?
The valves should not need replacing on a regular basis assuming that they are maintained properly. On a monthly basis, it is advisable to flush the valves through with warm water, allow to dry and apply a little talcum powder to prevent the valve from sticking. On the Powa valve, it is essential that you locate the two pins, nearest the hinge, properly into the body of the valve, and check that they are seated properly.
For more FAQ, go to Respro® Mask FAQ