how to clean maf

I have a pro M mass air and was wondering what I should use to clean the mass air. I have got a p0172 bank 1 too rich and was wanting to try cleaning out the maf, I changed my o2 sensor from driver to passenger side and it drove fine for 2 days but now its starting to hesitate again but not set of engine light yet. Thanks
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I clean my MAF at least once a year. Go to Advance Auto, Auto Zone, etc. and buy a electronic parts cleaner (any brand) in an aerosal can. Be careful when sparying cleaner as filaments in MAF are fragile. I do not wipe out the MAF with any type of rag or paper towel since they may leave residue behind that will contaminate your filaments. Just let it dry by itself before putting it back.