The general rule of thumb is that each air handler should have one air filter. Most homes, especially larger ones with multiple HVAC systems, have more than one filter installed. These are usually placed near the oven or manipulator of the air conditioning system and return grilles. If your home has a forced air heating or cooling system, then you have at least one filter.
The purpose of this filter is to remove particles and debris suspended in the air inside your home. With a fresh filter, you can enjoy better indoor air quality for the whole family. Some larger homes have more than one HVAC system, so each system will normally have at least one filter. Therefore, your home may have filters located in the air handling unit and on returns.
You should check every possible location to ensure that you have located all of your filters. It is usually located in the return air duct or in the fan compartment before the return air reaches the air handler. It is also the filter recommended by the Department of Health, as it filters even the smallest particles, such as bacteria. Electrostatic filters clean the air by creating static electricity that acts like magnets that adhere dust and contaminants to the sheet.
It is not recommended to replace a filter with a smaller size filter because unfiltered air will flow around the filter and cause dust, allergens, and debris to accumulate on the coil. When you open the cover for that slot on your air handler, you should see an existing filter inside it. Either way, make a habit of inspecting your filter and your entire HVAC system for optimal and consistent results. Asthma, skin and eye irritation, and allergic rhinitis are some of the many health problems caused by clogged filters.
Routinely changing or cleaning filters in your home's heating and air conditioning system helps units operate more efficiently and enjoy a longer lifespan. In recent years, this air cleaning function has become more important for homeowners, and manufacturers have designed filters that use their heating and air system to remove microscopic particles such as dust, pollen, pet dander, bacteria, plant spores and mold, and even smoke from the air of their home. When this happens, immediately check your environment for open flames and short circuit wires; if none, blocked filters are to blame. However, the most common type of filter is not popular with homeowners due to its low filter quality.
Clogged filters require the system to put more effort into maintaining standard air circulation in your home. If you recently moved or bought a new home, you might be wondering where your HVAC air filters are located. One of the best things you can do to improve efficiency and extend the life of your HVAC is to change your filter regularly.