Electrostatic filters are also called washable air filters. They are just one of the numerous air filters on the market today. Like their counterparts, they have pros and cons. So what are electrostatic filters and how do you use them?

If your HVAC repair professional suggested an electrostatic air filter, you probably have plenty of questions about how good they work and whether they’re the right ones for you. If you have a person in your home with asthma or bad allergies, the air filtration system you pick is even more crucial.

What are Electrostatic Filters?Rochester NY HVAC What Are Electrostatic Filters

The enticement to electrostatic air filters is because you don’t have to replace them. This is the story, although it’s difficult to believe that a thing that draws in debris and dust won’t need to be replaced. At the very least, you can anticipate a long-lasting air filter.

To keep these washable air filters maintained and cleaned, you have to take them out every month and clean them off. Once cleaned, the air filter can be put back in. Though, it is critical that the filter is washed every 30 days. Failure to do so can result in a dirtied unit that leads to raised allergens and dust coming out of the ductwork.

Pros and Cons

Now that you have some info on electrostatic filters and how they function, here are the pros and cons and whether your house can benefit.


Great air filtration. Electrostatic filters are great at cleaning out the air. However, they aren’t as efficient as pleated air filters. If someone in your house has allergies or asthma, this filter isn’t going to be enough. 

Affordable. Washable air filters pay for themselves in around 12 months. The price is about $50-$60, which you already spend with conventional filters every year.


Maintenance. To be efficient, electrostatic filters have to be removed and washed every month. If not, they can halt working, putting dirt and allergens into the air.

Not a good choice for people living with asthma. Because washable filters are not as effective at getting rid of mold spores and particles from the air, they are not a good choice for allergy or asthma sufferers.