Bonsai FFU H14 99.995% HEPA Replacement Filter for 2'x4' Fan Filter Unit (24" x 48" x 3")

The Bonsai 2’ × 4’ HEPA replacement filter is the genuine replacement for the Bonsai 4×2 fan filter unit (FFU). It’s a 24" × 48" × 3" deep true H14 HEPA filter, rated 99.995% efficient at 0.3 microns, to keep your work area at ISO Class 5 / Class 100 clean air.

It has a rated life of 3,000 hours, or about 3–5 years under normal use. Replace it sooner in high-dust or heavy-particulate environments.

• True H14 HEPA
• 99.995% @ 0.3 µm
• 24" × 48"
• 3" deep

• 2’ × 4’Filter face
• 99.995%@ 0.3 microns
• 3"Depth
• 3,000 hrRated life
• H14HEPA class

Why replace with a genuine Bonsai filter

• Made to fit – Built for the Bonsai 4×2 fan filter unit.
• True H14 HEPA – 99.995% efficiency at 0.3 microns for ISO Class 5 / Class 100 clean air.
• Long rated life – 3,000 hours, or about 3–5 years under normal use.
• Easy swap – Designed for quick, simple filter changes.
• Be ready – Keep a spare on hand so your FFU is never down waiting on a filter.

When to replace it

• After about 3,000 hours of use, or 3–5 years under normal use
• Sooner in high-dust or heavy-particulate environments
• When airflow at the filter face noticeably drops
• If you see more contamination in work done in front of the FFU

How to replace it

1. Power down. Turn off and unplug the FFU.
2. Remove the old filter. Take out the used filter, handling it carefully to avoid releasing trapped particles.
3. Install the new filter. Seat the new filter evenly so it seals around the edges, with the airflow direction matching the unit.
4. Clean the pre-filter. Rinse the washable magnetic pre-filter while the unit is open, then reinstall it.
5. Run before use. Turn the FFU on and let it run before starting sterile work.

Specifications

FAQ

• Fan filter units
• Bonsai 4×2 FFU
• Flow hood vs FFU guide