510 Bionaire Electret Air Cleaner Replacement Filter

by Lennox

Product Features

• Fits Bionaire models BT400, BT500, BT500s, and BT501.
• Bionaire Electret main air filter.
• Filter measures 22 1/2 x 4.
• For removal of dust, smoke particles, pollen, and bacteria.
• For optimum performance, replace filter every 3 to 6 months.

Product Details

• Item Weight: 0.8 ounces
• Shipping Weight: 0.8 ounces (View shipping rates and policies)
• ASIN: B000PJ4822
• Average Customer Review: 5.0 out of 5 stars  See all reviews (1 customer review)
• Amazon Best Sellers Rank: #507,077 in Home & Kitchen (See Top 100 in Home & Kitchen)

Product Description

Bionaire Electret main air filter, fits Bionaire models BT204, BT400, BT500, BT500s, and BT501. This filter measures 22 1/2 x 4 and is used for removal of dust, smoke particles, pollen, and bacteria. For optimum performance, replace filter every 3 to 6 months.

Customer Reviews

Most Helpful Customer Reviews

4 of 4 people found the following review helpful:

5.0 out of 5 stars Revived my old Biotech/Bionaire!, February 5, 2009

By 

G.B.D. (New England) - See all my reviews

Amazon Verified Purchase

This review is from: 510 Bionaire Electret Air Cleaner Replacement Filter (Kitchen)

I have a small, really old BIOTECH (Bionaire) air "purifier" which I had sitting on the shelf...almost gave up on using it again until I ran across this filter which fits! I also bought the charcoal foam, large size, which had to be cut; no problem there though. Amazingly, the thing has cleared out the mildew smell on my seasonally musty enclosed porch, and keeps the air nice and fresh. I run it on low, 24/7, with "ions" turned on. I did drag some sandpaper over the ion needle, which looked kinda rusty. But otherwise just flipped open the grates and stuck in the 2 filters. How great to be able to revive the old machine to be of such worthy use. Thanks for carrying these filters. :)