Most heating and cooling systems come with fairly effective air filters, and for the average home, this is enough. However, if you want to go a step up, consider electrostatic air filters. Heating and cooling expert All Climate Heating & Air Conditioning shares an overview of their features and benefits.
How Electrostatic Air Filters Work
A typical air filter features pleated filters made of a fiber similar to that of coffee filters. As a passive filter, it simply catches dirt, dust and similarly-sized particles. However, it doesn’t catch everything; microbes and other smaller particles may still pass through.
Electrostatic air filters, on the other hand, work like this:
- An outer pre-filter layer filters out large particles.
- An ionizer layer charges whatever comes through the outer pre-filter with a positive charge.
- A layer of negatively-charged collectors attract and trap the positively-charged molecules.
- A second filter further filters the air before it moves into the vent and on through the HVAC system.
Though they have a similar filtration process, don’t confuse an electrostatic air filter with an electronic air cleaner, which is a powered unit that features charged elements that actively collect particles. While it is a far more effective unit, it’s also more costly, both upfront and long-term.
Features and Benefits
Like typical air filters, electrostatic filters don’t require electricity to work. Instead, they rely on a static charge that’s generated by the material itself. Electrostatic air filters excel at filtering out the particles that are small enough to get past typical filters, making them the ideal choice if you have family members with respiratory problems or allergies that can be triggered by certain indoor air pollutants. They’re also washable, and can easily be cleaned using running water and any commercially available filter cleaner. Electrostatic air filters come in standard sizes, so you shouldn’t have a problem finding ones that match your existing filters.
Call All Climate for Your Heating and Cooling NeedsIf you need help finding the right kind of filters for your heating and cooling system, All Climate is the number one provider of all things HVAC. Give us a call at (425) 361-0126 or fill out our contact form.