Posted by: mteverestair | September 17, 2010

Air Filters: What’s the Difference?

We get a lot of inquiries about air filters. Most callers want to know the price of each filter we provide. Any Heating and Cooling company can simply quote you a price. For some homeowners, the choice will be made on cost alone. However, selecting a system filter based on cost alone may not be the best option for the health of your family or your system’s performance in the long run. To help you better understand some things about the types of filters available, I’ve put together a brief explanation on the different types of filters you have for consideration.

The simplest, and most easily available filters, are disposable filters made from interwoven fiberglass. You will find that most home stores and discount stores have these on hand.

High performance filters use pleated paper or other materials or “media”. These work by collecting microscopic dust particles as the air passes through. It’s likely that you will find this type of filter at most big box type home centers.

An electrostatic filter will use the motion of air across a weave of synthetic threads to create a static electric charge on dust particles which helps it to cling to itself and keep it trapped inside the system and out of your home.

More high tech, an electronic air filter adds an electric charge on dust particles when air passes through. Dust then collects on plates that are also charged. By putting an electric charge on dust particles, ozone is created, which helps kill bacteria and odors. Homeowners with pets find this a good option as it helps reduce pet dander and pet odors in the home.

You should know that electronic air cleaners can become less effective as they become dirty, so we recommend washing them at least monthly when in constant use. If you hear loud pops or snaps during the heating or cooling cycle, it means that it is time to clean the grids.

Cleaning the grids at least once a month should prevent you from ever hearing these “pops”, but if your home takes in quite a bit of dust from outside such as from road construction, for example, or other factors, you may hear them and need to clean the grids of the unit more frequently.

You might actually find that non-electric filters can increase in effectiveness (dust removal) as they get dirty, but they will also decrease airflow. Finding the best balance between cleaning efficiency and a proper airflow is really hard to define. You will find it takes some experimenting and knowledge of your system to best learn what is optimal for your house.

Clean air filters are essential to your system performance and your home’s overall air quality. Running a system with a dirty filter will only get you hot or cool dirty air and you will find yourself and your family cleaning more and possible being sick more often. If you have questions about air filters for your home’s heating and cooling system, call a qualified pro like Mt Everest Air Heating & Cooling Specialists. We will answer your questions and help you make the right choice for your needs.

Till next time,


Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s


%d bloggers like this: