- Sun Oct 09, 2011 8:38 pm
"This is a thread on an adult forum sorry it's a copy paste and edit job anyways if you want a forum that has many threads on this topic of homemade laminar flow hoods PM me" It won't work. Not only won't it achieve laminar flow it will let all sorts of nasty stuff get through. If we could use a fifty dollar walmart filter, we sure wouldn't spend $500 and up on laminar flow hoods browsed Home Depot & found EasyGardener polyspun bonded (polyester) landscape clothe (material like a filter disk) that they generally stock in 3 X 50 ft rolls for $20. This fabric would serve as a course pre/filter material.
Home Depot also generally has Honeywell TrueHepa (0.03 micron) replacement filters, stock # 21500 for $50 (+ or - a buck or 2). This will serve as a (round) hepa filter.
I also checked several auto parts stores & matched the Honeywell hepa filter with a Purolator Premium Plus automotive air filter (stock # A53384) that cost $7.
There you have it.
1. Course pre/filter material (cut to size) @ $20. (A ton more than you need)
2. Fine pre/filter (automotive round) @ $7. Use 2 & double stack = $14)
3. Honeywell true Hepa (round) @ $50.
With course pre/filter, then a space & then the fine pre/filter in front of -- or on top of another space & then the hepa filter, it will last a decade, or more.
That is all the filtration pieces you will ever need for around $85.
Browse Home Depot & eyeball all the 4 X 8 sheets of differing sheeting they have & you can find the sheeting & structural support material you need to build a pro grade laminar flow hood for cheap. If you are handy with hand tools.
Check out your local furnace repair & air/con repair shops. You can often find great used squirrel cage fans, perfect for this application, for under $25.
With a little ingenuity with these filters, you can build a KILLER flow hood for around $150 bucks in materials. Round filters are easy & simple to convert to this application.
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