About Blog

Our Satisfaction Guarantee

Close Button.

Free Same-Day Shipping

All U.S. orders get free shipping, and all orders placed on workdays before 1pm EST get shipped that same day. Details here.

Zero-Risk Returns

Not sure you‘re ordering the right part? No worries, we can send you a prepaid return label. Details here.

Best Pricing

We manufacture all of our products and sell them to you with no middleman, so chances are you won't find lower prices anywhere around.

Phone Help Available MON-FRI

Not sure which part you need for your appliance? Give us a ring during working hours (Mon-Fri 9am-5pm EST), and we‘ll help you out promptly:

Back to View All

How does the carbon pre-filter function?

A carbon filter acts as the pre-filter. It filtrates larger particles and eliminates odors from the air before reaching the filter.

Carbon has the ability to absorb almost any type of gas and molecules. When a gas reacts with the surface of an activated carbon filter, it is absorbed down and condensed into liquid particles. By using a carbon pre-filter, it longs the life span of your HEPA filter. For optimal performance, it is recommended that you change your carbon filter every 2-4 weeks.


Sold Out