Air filtration efficiency is determined by particle size. Particles of different sizes can’t follow the gas stream in an air flow. How they are filtered will depend on their size, density, depth, and location in the filter. Larger particles exhibit greater impaction than smaller particles. The particle size also affects the amount of impaction.
Air filtration efficiency and particle size are affected
Although particle size has been shown by experiments to affect air filtration efficiency, the relationship is not clear. Newer research has shown that filtration efficiency increases with decreasing particle sizes, in the nanometer range.
For a given duty or situation, the maximum penetration size (MPPS) is the criterion for measuring the efficiency of air filters. A filter may require a lower MPPS if its particle size is close the criterion. This does not necessarily mean that larger particles pose a greater threat to human health than smaller particles.
The efficiency of an air filter such as the merv 13 air filter depends on many factors, including the size of the space and the location. Indoor activity also has an impact on the efficiency of an indoor filter. This paper examines the effects of air cleaners on particle counts in offices. To measure particle counts at different sizes, a 10’x12′ office was used. Particles between 2.5 microns were measured.
Methods of air filtration
Commercial operations may use several types of air filtering. Some methods work better than others. For example, HEPA filtration reduces the transmission of PRRSV.
Adsorption is another method. This process binds large quantities of airborne pollutants and removes them completely from the atmosphere. It also removes particles too small to reach the filter. The result is a cleaner air environment. It is a great way to protect the environment and people. It can help reduce the risk of respiratory problems and other health problems.
Cost of air filtration
The cost of air filtration is one of the most important questions. Air filters can range in price from $400 to $700 depending on the type of filter used. Pleated filters are more expensive than flat filters, but they are effective in capturing smaller airborne pollutants. These filters use high-efficiency filter paper that is pleated in an accordion-style frame. They capture more particles because the pleats increase their surface area. These filters must be replaced at least once a year.