How long do pocket masks last?
Depending on how they are stored, anywhere from twelve months to five years. It is vital that you treat your mask as rescue equipment that may be used to save the life of someone experiencing a breathing or cardiac emergency.
At the very least, inspect your equipment annually. If the mask is still pliable with no cracks and the air bladder is fully capable of making an airtight seal to the patient's face, then it is still a good mask.
Some professional CPR masks and CPR training masks can be cleaned and disinfected according to CDC guidelines. See product descriptions to verify re-usability if you are not certain if the product is applicable. Valves should always be discarded after use.
To clean and disinfect appropriate masks, gently wash the mask in warm soapy water, using dishwashing liquid. Rinse in clean water and plunge the entire mask body into a disinfection solution of 1/4 cup of non-scented liquid chlorine bleach per gallon of water. Completely submerge mask and valve stem (the part of the mask where you place the valve). Let stand in bleach/water solution for 10 minutes, rinse with fresh water then allow to air dry.