" Our customers include mostly Authorised Metone distributors around the world." from company called Minipore - not Millipore, in India. Met One Instruments, Inc. USEPA designated monitors must use the 460130 or the 460180 filter tape purchased from Met One Instruments, Inc. Using filter tapes from other manufacturers, such as Minipore, results in the loss of USEPA or any other designations. Also, because the quality of other tapes has not been tested and will result in loss of warranty on your monitors, it is recommended to use only the designated and quality controlled filters for best performance.
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