Below is a fairly thorough article discussing filtration of pollens from honey here in the US.  Of course filtration is only possible with heating.  Enjoy, and feel free to leave your thoughts or comments.
http://www.foodsafetynews.com/2011/11/tests-show-most-store-honey-isnt-honey/ 

http://www.heraldextra.com/news/local/north/alpine/article_dc6aa1a8-6592-5c00-88cf-d42829349a2d.html 

Welcome to The Alpine Beekeeper!!  It is so exciting to launch our new website, blog & forum.  We are so excited to be a part of the grassroots movement by small beekeepers and health enthusiasts to reintroduce 100% unprocessed, unheated, unfiltered honey to honey loving consumers.  Unprocessed Honey is one of natures most perfect foods. It really is a crime that the vast majority of the honey on shelves in this country has been sterilized & stripped down to a sweetener not much better than corn syrup, & in addition tastes terrible.  What makes it so disheartening is that all that Honey was perfectly produced by the amazing honey bee only to be destroyed in an effort to make the honey look more appetizing to the consumer.  If you haven't experienced a spoonful of NEVER HEATED honey, then try ours, or visit your local bee keeper & ask if their honey is ever heated or warmed.  If the answer is "NO" your on your way.  If "Yes", keep looking.