Not all of these will be viable options, and you should make sure to research them first before deciding which one to buy from. Free N95 masks how to get free N95 check with local businesses to see if they have any mask-giving initiatives. Free N95 masks free N95 masks order masks made from N95 are used to reduce its effects. How N95 Respirators Work. N95 masks ( also called respirators ) are common in health care and public safety industries because they are designed to filter out hazardous gases. Additionally, when not in use, keep your face mask in a spot that is clean and dry.