Mother Nature has a split personality, he creates a gentle summer time breeze, however also creates life-threatening tornados and hurricanes. She can cause floods or a drought or make the temperature change from a balmy Springtime day to a cold blizzard the next day. Man’s survival depends on our ability to adapt to whatever he throws our way. One of the most powerful tools to defeat the whims of nature is the development of heating, ventilation, and air conditioning technologies! Heating and Air Conditioning has allowed us to create a comfortable residing space no matter what is going on outdoors… Unluckyly, Mother Nature has another trick up his sleeve and that is those microscopic particles of pollen that are vital to the reproductive system of plants… Pollen is an essential character when every one of us relate the story of the “Birds and the Bees” to our youngsters. But it also makes it impossible to breathe easy, especially for those with pollen irritations and those who suffer from asthma. Man’s response was the development of Heating and Air Conditioning filters… Lower price filters with a Minimum Efficiency Reporting Value (MERV) from 1 to 4 do a wonderful task of trapping dust and larger particulates however will allow the smaller pollen grains to enter your house. To capture those tiny bits of genetic material, the MERV rating will need to be higher at about an 8 for giant pollens and maybe up to a 12 MERV rating for those easily tiny 1s. Most people hope to escape the runny nose, watery eyup, and other minor symptoms buddyd with pollen pollen irritations, however for other people afflicted with asthma, the option of filter that they use in their Heating and Air Conditioning system can be a life or death decision.