The blowers in HVAC units rely on a good air supply to keep them cool. These filters can cause restricted airflow. They may negatively affect certain HVAC systems. We do not recommend M 12 or higher 13 filters. They remove pet dander and most allergy causing air particles. These air filters are great for people with pets. We recommend MERV 11 filtersВ as our вЂњbetterвЂќ air filter. M 10 filters are easy on air blowers and fans. These filters do a good job at removing harmful indoor air pollution. LakeAir Commercial units have the ability to incorporate a MERV 14 High capacity media filter Our RecommendationsДЄt LakeAir, we recommend MERV 10 filtersВ as our вЂњgoodвЂќ air filter. Our Media Air purifiers use MERV 11 filters. The furnace filter frames use a M 10 rated level air filter. LakeAir replacement filters use 4 different MERV rated filters.

These filters remove at least 99.97% of dust particle and are capable of removing viruses and radioactive material. This level of filtration does fall into the MERV system but they are shown here to add continuity to the overall filter picture. ASHRAE no longer recognizes MERV 17-20 values. HEPA and ULPA filters are represented in the 17 through 20 ratings. They are usually reserved for superior commercial applications. These filters should not be used in home HVAC or furnace systems. They require special blowers to pull the air through them. Their cost is often moderate and are within many budgets.ДЄ M rating of 13 through 16 are higher quality filters. They generally allow enough air to flow through a furnace filter to allow the blower to stay cool. They remove the bulk of dust we see in homes and offices. MERV 9 through 12 filters are good filters for general home use. These particles could hurt health and productivity. These air filters are used to protect people or products from airborne contaminants. A lint trap in a dryer is about M 2ДЇilters with a (M) value 5 through 8 remove finer dust particles. The Average arrestance is used to determine MERV 1 through 4.

Their average efficiency from 3 to 10 micron is less than 20. They are used in light industrial and residential applications. These filters are used primarily to protect equipment. M values 1 through 4 are designed to remove large particles. Generally, the higher the MERV (M), you get better filter performance. Higher = More Filtration in the MERV Filter Rating Chart

Merv 10 vs 11