Whole house air filter versus portable air purifier

Whole house air filter is one powerful home air purifier installed in your ventilation system. It cleans your indoor air from harmful pollutants, preventing the sick building syndrome. As any home air purification system, such centralized air cleaner has its advantages and disadvantages, as discussed here.

Why would you use a whole house air filter? If you want to clean air of a relatively large area of your home or office at the same time, it may be more practical to have one home air filter instead of many portable air purifiers scattered all over the place. It may also be more convenient to monitor and maintain only one system in one place.

Another reason why people use a whole house air filter is that it is easier to separate all unsightly and noisy machinery from your main living area. While a portable air purifier makes sense only if it is placed in your main living space, where you spend most of your time, a wholehouse cleaner unit can be hidden in your basement or utility closet. Like other parts of your home ventilation system, it is hidden together with your duct work. A wholehouse filter is also much more protected from your kids than a typical portable air purifier in your room.

A central air cleaner in your house ventilation system is also very helpful if you live in area with significant outdoor pollution, or if you are sensitive to any outdoor pollutants near your house. The purifier then cleans the incoming air, stopping those harmful outdoor pollutants from entering your home through ventilation.

One disadvantage of a whole house air purifier is that, in most cases, it only provides clean air when your central furnace fan is on. And if you have the fan on day and night, this may be a significant addition to your electricity bill. So, even if you have a centralized unit, it may be wise to also have a portable air purifier. For example, for your bedroom or office.

Another possible disadvantage is that, unlike portable home air purifiers, a whole house air filter needs a qualified technician for proper installation.

Other advantages and disadvantages of whole house air purifiers come from the specific home air purification method used by your machine. Those methods include HEPA filtration, ultraviolet (uv) air decontamination, electrostatic air cleaning, and some others. Your unit may also combine a few of those methods. See other pages of this web site for more information about each specific method.

When choosing a whole house air purifier, check its technical specifications to make sure it can handle the size (the square footage) of your whole home or office. Check if it is easy enough for you to do the necessary maintenance, such as routine replacement of a HEPA filter, a prefilter, or a UV lamp.

Finally, don't forget that, depending on your situation, even a less expensive and less heavy option, such as a portable air purifier can already be a good, or even the best solution. If you place it in the room you spend most of your time in. Fortunately, there are home air purifiers that are quiet enough, or just silent, and that have beautiful designs (no need to hide).

Furnace air filter considerations
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