Do all homes have air filters? The answer is yes, most homes have at least one air filter. Larger homes may have multiple HVAC systems, each with its own air filter. It is important to check every possible location to make sure you have found all of your air filters. The purpose of an air filter is to remove particles and debris suspended in the air inside your home.
This helps to improve indoor air quality for the whole family. It is recommended to change the air filters in the air conditioning or heating system every month when the system is operating. The large box filter, also known as a Merv 1 filter, is usually located above the return air chamber on a concrete floor. Cleaning a heavily soiled fan can result in a 100% improvement in air conditioning or heating flow.
The photograph shows a vertical or upflow heating and air conditioning unit whose cooling section was mounted as an accessory above a hot air oven. The air cleaner should be placed on the return side, either on an intake grille or possibly in the return air chamber at the bottom of the air handler. Knowing where to look for all your air filter replacements will help you breathe better, cleaner air into your home. Air filters can be integrated into the heating and cooling system (whole-house filters) or be stand-alone units that can be placed in individual rooms (portable filters with autonomous fans).
A small reduction in airflow and a little more in the cost of home heating can be the result of leaving things at the top of the return air intake. CASCADE AIR FILTER DESIGNS are used for dust filtration, with the wall filter being the first easily accessible stage. Ultraviolet light causes airborne bacteria and viruses to fall into oblivion, which is why hospitals use UV air filters in TB wards. A heavily soiled air filter will slow down air movement and increase the operating cost in an air conditioning or heating system.
It is important to note that many filters are reinforced to prevent airflow from collapsing the filter material and leading it directly to the fan itself. Now that you know why you have 2 air filters in your HVAC system, let's identify where they are located.