Mother Nature has a cut personality, however she creates a gentle Summer breeze, but also creates life-threatening tornados and hurricanes. She can cause floods or a drought or make the temperature change from a balmy Spring day to a cold blizzard the next day. Man’s survival depends on our ability to adapt to whatever she throws our way. One of the most powerful tools to defeat the whims of nature is the development of heating, ventilation, and a/c technologies, and heating and A/C has allowed us to create a comfortable living space no matter what is going on outdoors, however unluckyly, Mother Nature has another trick up her sleeve and that is those microscopic particles of pollen that are vital to the reproductive idea of plants, then pollen is an essential character when every one of us relate the story of the “Birds and the Bees” to our kids. But it also makes it impossible to breathe straight-forward, especially for those with dust sensitivities and those who suffer from asthma. Man’s response was the development of Heating and A/C filters, however lower price filters with a Minimum Efficiency Reporting Value (MERV) from 1 to 4 do a good job of trapping dust and greater particulates but 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 big pollens and maybe up to a 12 MERV rating for those really tiny ones. Most people hope to escape the runny nose, watery eyes, and other minor symptoms buddyd with pollen dust sensitivities; For other people afflicted with asthma, the option of filter that they use in their Heating and A/C idea can be a life or death decision.