When it comes to air filtration, a Merv 8 is considered a superior option compared to filters with a lower Merv rating. But is it enough? In many cases, a Merv 8 air filter is more than adequate. However, if you are concerned about outdoor air pollution, family members with respiratory problems, or pets in the house, then a higher merv rating might be a good idea. Before you buy one, there are a few things you should know. A Merv 8 air filter is effective at trapping most indoor particles that could weaken people with asthma and allergies, or even cause long-term respiratory problems.
It can capture most of the large particles in the air and is compatible with most HVAC systems. However, if you have allergies or pets, or live near smoke pollution, then a filter with a higher MERV rating is recommended. The MERV system was created by ASHRAE in 1987 as part of its ongoing process to update its filter testing standard. The ratings range from 1 to 20, with 1 being the lowest level of filtration and 20 being the highest. A CNN article states that HEPA filters with MERV ratings of 17 to 20 are best at reducing the spread of viruses, but most household ovens cannot draw air through a dense HEPA filter. The Filtrete 10x20x1 AC oven air filter has a MERV rating of 8 and can trap 90 percent of contaminants and filter media.
It also has a low pressure drop of 0.22 inch, fractionally lower than that of the Nordic Pure MERV 12 at 0.24 inch. The Nordic Pure MERV 12 filters are available in many sizes and are an economical choice. In conclusion, if you are looking for an effective air filter for your home or workplace, then a Merv 8 is an excellent option. However, if you have allergies or pets, or live near smoke pollution, then a filter with a higher MERV rating is recommended.