기능

• If you feel irritation, smell or taste in your nose or throat, exit the contaminated area and replace the cartridge.　・Perform the replacement according to OSHA 1910.134 guidelines and according to a predetermined cartridge replacement schedule.　・If breakthrough occurs, it must be replaced before then.　・The replacement time depends on the environment, exposure time, concentration, etc.　・Generally speaking, you should replace it as soon as you feel stuffy.　・The filter reaches its expiration date by clogging due to accumulation of toxic gases and dust. In the case of toxic gases, the higher the concentration or the more frequently the filter is used, the shorter the limit of use.