Vabiooth H14 HEPA Fan Filter Unit (FFU) - 22.6"x22.6" Clean Room Air Filter for Biosafety Level Labs, ISO 5/Class 100 Cleanliness - Ideal for Mycology, Mushroom Cultivation & Laminar Flow Hood Applications

I have been working to get a BSC for my garage lab setup, but the cost to get one used is just too much (even considering the cost of this filter alone), so I turned to the DIY options. While you can get the vendor’s recommended hood that this HEPA filter is designed to fit, the sizing is also standard for most double-wide laminar hoods (rear-filter style) and can work in my case for circulating overhead BSC setups as well. I ended up converting a sterile static air glovebox into a BSC using this filter and a generic squirrel cage blower fan. Airflow seems normal (dimensions aside for proper distancing) and so far I have been working contamination-free in my makeshift BSC (keeping good sterile technique, of course). Overall, this filter is pricey, but it is true to specs for being HEPA and providing a sterile hood environment.