This YouTube tutorial (creator: Derek Cole) gives a concise explanation of MERV ratings and the practical trade-off they impose: higher MERV numbers capture smaller/more particles but increase airflow restriction, while lower MERV numbers allow better airflow but allow more particles through. The speaker emphasizes balancing capture efficiency against airflow concerns when selecting filters.
So filters are rated by a MERV rating, what they call MERV rating. So the higher the number, the more efficient it is at collecting some micronic particles or particles. You can't see things that get in your system that you want to get rid of that you don't want in your system. So the higher the neuron, the more efficient is at collecting particles. The problem is the higher the number, the more restricts airflow. Airflow is the problem. The higher the number you get. So the lower the number, the more stuff it lets through, the higher the number is really good at capture stuff, but it's really bad at airflow. Airflow is a challenge. The higher the number you get.
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