Why Filti Washable?

Over its lifetime, a single Filti Washable Filter can replace multiple disposable filters AND Filtis are constructed with our own patent-pending Nanofiber filtering technology. If you want to save money, reduce waste and have better air quality in your home, get a Filti.

 Made in the USA

washable furnace filter


How They Stack Up

When comparing Filti washable furnace filters to old school disposable filters, there are three main considerations: cost savings, air quality rating, and the impact on the environment.​

Cost - Updated
air quality


A Better Way to Filter Out the Bad

Constructed to keep your home's air clean - longer, better and at less cost to you.

furnace filter layers
  • furnace filter feature 1


    Pre-filtration layer to support the nanofiber

  • furnace filter feature 2


    Patent-pending technology capturing the smallest particles and pollutants

  • furnace filter feature 3


    Heavy duty reinforcement for nanofiber layer


Simply Spray, Rinse, and Reuse

Taking care of your Filti Washable Filter is as easy as 1, 2, 3.

washable furnace filter


Remove Filti from furnace, take outside and spray dirty side thoroughly with soapy water. Let soak for 1 minute.

reusable furnace filter wash with water


With a hose, spray water through Filti in the opposite direction of air flow indicator arrows. Let dry completely.

reusable furnace filter


When dry, slide Filti back in your furnace ensuring that the air flow indicator arrows are pointed towards the blower.


Frequently Asked Questions

Still have questions about Filti? Contact us. 

What is Nanofiber technology?

For air filters, nanofiber technology creates a very fine, continuous, resilient fiber, that mechanically filters pollutants, maintaining its initial efficiency rating through multiple washes.

What is an electrostatic filter?

Electrostatic filters utilize static electricity in order to attract airborne particles. These filters have static-friendly fibers that naturally attract pollutants as air passes through

How do washable filters differ from disposable filters?

Disposable filters are similar to electrostatic filters, however, they are thrown away approximately every 90 days. The majority of washable filters are electrostatic filters. Airborne particles are collected and remain attached to the filter until washed. Water naturally eliminates the electrostatic charge causing most washable filters to lose their efficiency rating upon the first wash. Filti furnace filters utilize cutting-edge, nanofiber technology.

What is a MERV rating?

MERV stands for Minimum Efficiency Reporting Value developed by the ASHRAE. MERV ratings range from 1 to 16. The higher the MERV rating, the more efficient the air filter will be in trapping airborne contaminants and particles. For instance, a MERV 11 rating traps smaller airborne particles than a MERV 8. The Filti filter has a MERV 13 rating and is the most efficient washable filter on the market.

How often should I wash my Filti?

For optimal performance it is recommended to change a typical furnace filter every 3 months or 90 days. The beauty of the washable filter is that you can keep an eye on it and wash it at your convenience. We suggest getting a new Filti after 8 washes or around 2 years.

Does Filti help filter bacteria?

Yes! Filti has a MERV Rating of 13 and helps filter bacteria along with dust, lint, pollen, mold, pet dander, smoke, fumes, odors, viruses, and PM 2.5.most washable filters to lose their efficiency rating upon the first wash. Filti furnace filters utilize cutting-edge, nanofiber technology.