HEPA filters can relieve allergy triggers. This can be helpful for those who are suffer from them and or those with other health problems.
Not all home window air conditioner units have the motor or fan capability to accommodate filtration mechanisms that are described as high-efficiency. This is true for Heat, Ventilation and Air-Conditioning Systems which have been fitted with High Efficiency Particulate Air or HEPA filters. These are equipped with advanced filter pressure sensors that indicate the need for maintenance or replacement of the unit. One option is to put in place a bypass mechanism that can be attached to the air handler plenum where the condenser is mounted. It can also be fitted with an internal blower so the furnace or air handler will not overwhelm airflow resistance of the filter. If you were to install a HEPA filter in an HVAC system, this system needs to be modified professionally.
Both HEPA and HEPA-type or HEPA-like filters have similar features but do not have the same efficiency. Their capabilities are usually limited to straining only 85 percent of airborne allergens and dust missing those that are below one micron. This sophisticated system makes use of scores which point out their filtering capacity. The ability of original filters is tested with smoke and those that pass the screening are labeled with scores found on the packaging. The original HEPA unit is more expensive than the other two models. Hence, the cost factor is something that you need to consider. If you are looking for a new filter, it is important to distinguish between the HEPA and MERV or Minimum Efficiency Reporting Value. At the same time, consumers should know that the high-efficiency air conditioner filters can sort out miniscule particles which are as small as 0.3 microns and have an efficiency rating of 75 percent.
Modifications of HEPA Filters
Installing the advanced HEPA air conditioning filter calls for adjustments in the ductwork to allow the installation of a more solid air cleaner. It also needs a powerful fan to overpower the drop in pressure. Houses which go through progressive design techniques, quality-control construction and performance testing for energy efficiency, may acquire HVAC equipment with HEPA filtering mechanism.
Medium and high-efficiency filters should be installed correctly in cooling and heating systems so any air leakage that evades the filter is minimized. The higher the efficiency is the more attention should be paid to its sealed installation. The reason for this is that the enhanced airflow resistance is more likely to generate leaks. Usefulness may be significantly reduced if air passes through poorly-installed filter frames and holding system. The efficacy may decrease if air goes out of the exhaust grill of the HVAC system.
The HEPA filtering system has been described as the most effective filtration system. It can catch a maximum of 99.97% of particles with a diameter of something like 0.3 micrometers. This is even smaller than the breadth of human hair. The fibers have been laid out at random and contain pleats that are capable of increasing the surface area. These filters are used in residential units, hospital rooms, industrial firms and vacuum cleaners.