When it comes to air filters, it's essential to be familiar with the MERV rating system. This rating system is used to measure the resistance of a filter and is necessary for finding the right furnace filter for your home. While a higher MERV rating implies a stronger filter, it can also lead to airflow issues that can reduce efficiency and performance. To make sure you get the best filter for your needs, here's what you need to know about MERV ratings. In a nutshell, the higher the MERV rating, the more powerful the filter will be.
However, using an air filter with a MERV rating that is too high can be just as bad as using one that is too low. Air filters with higher MERV ratings can filter more, but the thickness of the filter material can impede airflow. This can decrease comfort, increase energy use, and accelerate the wear and tear of heating, ventilation and air conditioning components. Impeded airflow can also damage the compressor, heat exchanger and air conditioning coil. It's important to note that the maximum MERV rating your system can withstand depends on many factors besides the boiler model.
If your oven's MERV rating is too high, it can force it to work too hard and be exposed to damage. When deciding between a MERV 8 air filter and a MERV 11 air filter, there are several things to consider. Both are suitable for residential use, but if someone has an allergy or respiratory problem, opt for a MERV 11 air filter or even a MERV 13 air filter. A MERV 11 air filter can also filter out a large percentage of fine particles that a MERV 8 air filter cannot. On the other hand, air filters with a MERV rating of 14 or higher are designed for commercial HVAC systems that can withstand the coarsest filter material. A MERV rating of 13 to 16 is considered to be hospital-grade air quality, so it's unlikely that your home needs anything more than that.
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