What Are Electrostatic Air Filters?

Electrostatic air filters incorporate various technologies to remove dust, allergens, and microscopic germs from your home. Specific technological advances include:

• Using static electricity to remove particles. Electrostatic air filters charge particles passing through the filter. Fibers with the opposite charge on the filter surface trap these newly charged particles.
• Layers of filtration. Most electrostatic air filters have multiple layers, so any particles that escape the first layer get captured by later ones.
• Reusable technology. Unlike disposable filters, electrostatic air filters are reusable. Cleaning the filter regularly gets rid of all the captured particles.

When it comes to choosing the best air filter for whole-home air purification, electrostatic filters stand out. Here are some reasons homeowners choose electrostatic filters:

• Cost efficiency. Because they're reusable, electrostatic air filters save money compared to disposable filters.
• Eco-friendly design. Choosing reusable electrostatic filters helps reduce waste, making this filter an eco-friendly option.
• Enhanced air quality. Electrostatic air filters remove tiny particles, including dust, pollen, mold spores, and pet dander, from indoor air.
• Custom sizing options. This type of filter comes in various sizes, including custom sizes, so you can find one that fits your specific HVAC system.

Maintaining electrostatic air filters is simple. Here is a step-by-step guide to cleaning your air filter:

• Remove the filter. Before removing the filter, turn off your HVAC system. Depending on your specific HVAC model, you may need to unlatch the filter before sliding it out of the filter compartment.
• Rinse thoroughly. Use a standard garden hose or a sink faucet to wash both sides of the filter, removing trapped debris. Spray through the filter in the opposite direction of the usual airflow.
• Use mild detergent. For heavy buildup, use a small amount of mild liquid dish detergent and lightly scrub the surface to remove clumps. Rinse thoroughly to remove the soap from the filter.
• Dry completely. Ensure the filter is fully dry before reinserting it into the system. Reinstalling the filter while it's still damp could encourage mold growth.

When you're buying an air filter for your HVAC system, the two main choices are electrostatic and pleated filters. Here are some things to think about when comparing electrostatic and pleated air filters:

• Filtration efficiency. Pleated filters may be more efficient than electrostatic filters. When in prime condition, a pleated filter captures smaller particles, but this type of filter isn't washable, so replacements are required.
• Cost. Electrostatic filters cost more upfront, but reusable filters are a one-time investment. Pleated filters must be replaced regularly, which adds a recurring cost.
• Maintenance. Electrostatic filters are reusable, but you have to wash them regularly. Disposable pleated filters are convenient, but you need to swap in new replacement filters on a set schedule.