Bonsai Flow Hood H14 99.995% HEPA Replacement Filter for 12" Flowhood
Bonsai Flow Hood H14 99.995% HEPA Replacement Filter for 12" Flowhood is backordered and will ship as soon as it is back in stock.
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Description
Description
The Bonsai HEPAFLOW-12 Replacement Filter is the 12" x 12" H14 HEPA filter for Bonsai 12" laminar flow hoods, rated 99.995% efficient at 0.3 microns — the same filter that ships in the hood.
Plan on replacing it about every 24 months for typical hobby use, or every 12–18 months in a busy lab. Swap in a fresh filter when airflow drops off, when the filter media is damaged, or when it reaches about 24 months of typical hobby use.
- 12" x 12"Filter face
- 99.995%@ 0.3 microns
- ~24 moHobby use
- 12–18 moBusy lab
- HEPAFLOW-12Model
Why growers keep a spare filter
- Exact fit – The HEPAFLOW-12 is the filter built for Bonsai 12" flow hoods.
- True H14 HEPA – Rated 99.995% efficient at 0.3 microns for clean agar work, spore and LC work, and grain transfers.
- Long service life – Plan on about 24 months of typical hobby use, and longer with very light use as long as it keeps passing your tests.
- No downtime – A spare on the shelf means a damaged filter never stops your lab work.
- Restores performance – A fresh filter brings back full, even airflow across the work area.
What's included
- One Bonsai HEPAFLOW-12 replacement H14 HEPA filter, 12" x 12"
How to replace the filter
- Unplug the hood. Disconnect power before opening the housing.
- Open the housing. Remove the faceplate or front panel to reach the filter.
- Swap the filter. Lift out the old filter and set the new one in place, oriented the same way.
- Check the seal. Make sure the filter sits flat and fully seated so no air bypasses the media.
- Reassemble and run. Close the housing, power on and let the hood run before you start work.
When to replace it: Replace the filter at about 24 months of typical hobby use, if it fails an agar plate test, if airflow at the filter face drops noticeably, or if the filter media is punctured or damaged.
Specifications
| Specification | Detail |
|---|---|
| Brand | Bonsai Filtration & Manufacturing |
| Model | HEPAFLOW-12 |
| Filter grade | H14 HEPA |
| Filter size | 12" x 12" |
| Efficiency | 99.995% at 0.3 microns |
| Pressure drop | 0.58 @ 100cm |
| Replacement interval | Plan on about 24 months for typical hobby use (12–18 months in a busy lab); confirm with an agar plate test |
| Fits | Bonsai 12" laminar flow hoods |
Buying a hood?The Bonsai 12" Flow Hood + Extra Filter Bundle includes a spare HEPAFLOW-12. See all laminar flow hoods.
When to replace the HEPA filter
There's no single expiry date for a HEPA filter. It wears out two ways: dust loading, which tracks run hours and how clean your room is, and aging of the media and gasket seals, which tracks the calendar. Plan on about 24 months for typical hobby use and 12–18 months in a busy lab. Keep it in service as long as it passes an agar plate test and holds its airflow, and replace it sooner if it doesn't.
Our HEPA filter replacement guide explains each row of the chart and walks through four simple tests (agar plates, a flame test, an anemometer reading and a pre-filter check) that tell you when your filter is actually done.
FAQ
Which flow hoods does this filter fit?
Bonsai 12" laminar flow hoods, which use the 12" x 12" HEPAFLOW-12 filter.
How efficient is it?
It is a true H14 HEPA filter, rated 99.995% efficient at 0.3 microns.
How long does the filter last?
For typical hobby use, plan on replacing it about every 24 months; in a busy lab running most of the day, every 12–18 months; and in a dusty, round-the-clock space, every 6–12 months. Some manufacturers recommend replacing as often as every 12 months, because filter media and seals age even when the unit isn't running. Treat 24 months as a planning number, and let an agar plate test and an airflow check tell you when it's actually done. Our HEPA filter replacement guide has the full chart and four simple tests.
When should I replace it?
At about 24 months of typical hobby use, if it fails an agar plate test, if airflow at the filter face drops noticeably, or if the filter media is damaged.
Is it the same filter that comes in the hood?
Yes. It is the HEPAFLOW-12 filter used in Bonsai 12" flow hoods.
