[werk_ag]

I think that pollens fall more in the PM10 particles category, so they shouldn't affect the AQ Index, which is based only in the PM2.5 readings.

This can also bring up the question of maintenance for the Air Quality Monitor. What would the recommended cleaning frequency be for these sensors based upon the research done during the testing/development stage of this board?

Do you think I really know the answer to this question?  
From what I read from the guys at aqicn.org, the plantower sensors are not prune to accumulate dust inside.