{"product_id":"bonsai-3-x-2-ft-99-99-hepa-flowhood-fan-filter-unit-ffu-120v","title":"Bonsai 3 x 2 ft 99.99% HEPA Flowhood Fan Filter Unit (FFU) 120V","description":"\u003cdiv id=\"bonsai-ffu-3x2\"\u003e\n  \u003cstyle\u003e\n    #bonsai-ffu-3x2 { line-height: 1.6; color: #222; }\n    #bonsai-ffu-3x2 h2 { font-size: 1.5em; margin-top: 1.6em; margin-bottom: 0.5em; padding-bottom: 6px; border-bottom: 2px solid #e5e5e5; }\n    #bonsai-ffu-3x2 h3 { font-size: 1.15em; margin-top: 1.2em; margin-bottom: 0.4em; color: #1a6b3a; }\n    #bonsai-ffu-3x2 p { margin: 0 0 1em; }\n    #bonsai-ffu-3x2 ul { padding-left: 20px; margin: 0.5em 0 1.2em; }\n    #bonsai-ffu-3x2 li { margin-bottom: 0.5em; }\n    #bonsai-ffu-3x2 a { color: #1a6b3a; text-decoration: underline; }\n    #bonsai-ffu-3x2 a:hover { color: #0e4423; }\n    #bonsai-ffu-3x2 .lead { font-size: 1.1em; font-weight: 600; color: #1a4023; margin-bottom: 0.8em; }\n    #bonsai-ffu-3x2 table.spec-table { width: 100%; border-collapse: collapse; margin: 0.5em 0 1.5em; font-size: 0.97em; }\n    #bonsai-ffu-3x2 table.spec-table th { text-align: left; background: #f2f5f2; padding: 10px 14px; border-bottom: 2px solid #1a6b3a; font-size: 1.05em; color: #1a4023; }\n    #bonsai-ffu-3x2 table.spec-table td { padding: 9px 14px; border-bottom: 1px solid #e8e8e8; vertical-align: top; }\n    #bonsai-ffu-3x2 table.spec-table td:first-child { font-weight: 600; width: 42%; color: #333; }\n    #bonsai-ffu-3x2 table.spec-table tr:nth-child(even) td { background: #fafbfa; }\n    #bonsai-ffu-3x2 .ffu-callout { background: #f2f5f2; border-left: 4px solid #1a6b3a; padding: 14px 18px; margin: 1.2em 0; border-radius: 4px; }\n    #bonsai-ffu-3x2 .ffu-callout p:last-child { margin-bottom: 0; }\n    #bonsai-ffu-3x2 .video-wrap { max-width: 900px; margin: 16px auto; }\n  \u003c\/style\u003e\n\n  \u003cp class=\"lead\"\u003eMore clean-air workspace than a 2×2 FFU, with the same compact 14\" deep design.\u003c\/p\u003e\n\n  \u003cp\u003eThe \u003cstrong\u003eBonsai 3' × 2' HEPA Fan Filter Unit (FFU)\u003c\/strong\u003e is a mid-sized, cleanroom-grade \u003cstrong\u003efan filter unit for mushroom cultivation\u003c\/strong\u003e and sterile lab work — an affordable alternative to a full laminar flow hood, sized for mycology labs, agar work, sterile transfers, classrooms, and small production spaces.\u003c\/p\u003e\n\n  \u003cp\u003eWith a larger filter face than a standard 2×2 model, this FFU gives you more usable clean-air workspace while still fitting on standard worktables and benches. It's ideal for growers who need extra room for grain transfers, agar workflows, liquid culture, and inoculation without stepping up to a full 4×2 unit.\u003c\/p\u003e\n\n  \u003cp\u003eUnlike many lower-cost FFUs that use thin housings and plastic blower assemblies, every Bonsai FFU is built with upgraded premium components for smoother airflow, quieter operation, improved durability, and longer service life.\u003c\/p\u003e\n\n  \u003cdiv class=\"ffu-callout\"\u003e\n    \u003cp\u003e\u003cstrong\u003eFFU or full laminar flow hood?\u003c\/strong\u003e For most home growers, this FFU works as a complete flow hood solution. To compare both options before you buy, read our \u003ca href=\"https:\/\/www.midwestgrowkits.com\/blogs\/news\/laminar-flow-hood-or-ffu-whats-the-difference-and-which-one-should-you-buy\"\u003eLaminar Flow Hood vs FFU guide\u003c\/a\u003e — we built and tested both to show exactly where each one shines.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eWhy Growers Choose the Bonsai 3×2 FFU\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLarger 3' × 2' Work Area\u003c\/strong\u003e – More clean-air space than a 2×2 FFU for higher-throughput sterile work\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTrue H14 HEPA Filtration\u003c\/strong\u003e – 99.995% efficiency at 0.3 microns for ISO Class 5 \/ Class 100 clean-air performance\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCompact 14\" Deep Housing\u003c\/strong\u003e – Fits on standard stainless tables, lab benches, and workstations\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eUpgraded Aluminum Centrifugal Fan\u003c\/strong\u003e – Backward-curved aluminum blower for smoother airflow and longer service life\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWashable Magnetic Pre-Filter\u003c\/strong\u003e – Reusable electrostatic pre-filter helps extend HEPA filter lifespan\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eQuiet, Efficient Operation\u003c\/strong\u003e – Designed for extended lab sessions without excessive noise\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e18-Month Warranty\u003c\/strong\u003e – Backed by extended warranty protection for added confidence\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eWhat You Can Do With This FFU\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003ePour and transfer \u003cstrong\u003eagar plates\u003c\/strong\u003e in a wider clean-air zone\u003c\/li\u003e\n    \u003cli\u003ePerform \u003cstrong\u003egrain-to-grain transfers\u003c\/strong\u003e and larger spawn workflows\u003c\/li\u003e\n    \u003cli\u003eInoculate \u003cstrong\u003egrain jars, spawn bags, and substrates\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003eHandle \u003cstrong\u003eliquid culture, cloning, and syringe prep\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003eBuild a dedicated clean-air workstation on standard tables or benches\u003c\/li\u003e\n    \u003cli\u003eUpgrade from a still air box to \u003cstrong\u003etrue HEPA-filtered laminar airflow\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\n  \u003ch3\u003eHEPA Filtration System\u003c\/h3\u003e\n  \u003ctable class=\"spec-table\"\u003e\n    \u003ctr\u003e\n\u003cth\u003eComponent\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eHEPA Filter\u003c\/td\u003e\n\u003ctd\u003eTrue H14 — 99.995% efficiency at 0.3 microns\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eClean-Air Rating\u003c\/td\u003e\n\u003ctd\u003eISO Class 5 \/ Class 100\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eFilter Media\u003c\/td\u003e\n\u003ctd\u003eHigh-efficiency microfiber in a durable aluminum alloy frame\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePre-Filter\u003c\/td\u003e\n\u003ctd\u003eWashable magnetic electrostatic pre-filter (MERV 5 \/ G4, 95% at 5µm)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eAirflow \u0026amp; Performance\u003c\/h3\u003e\n  \u003ctable class=\"spec-table\"\u003e\n    \u003ctr\u003e\n\u003cth\u003eSetting\u003c\/th\u003e\n\u003cth\u003eAirflow\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eFan Control\u003c\/td\u003e\n\u003ctd\u003e3-speed adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eHigh Speed\u003c\/td\u003e\n\u003ctd\u003e120 FPM\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMedium Speed\u003c\/td\u003e\n\u003ctd\u003e110 FPM\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eLow Speed\u003c\/td\u003e\n\u003ctd\u003e100 FPM\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eAverage Airflow\u003c\/td\u003e\n\u003ctd\u003e500–530 CFM\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eAverage Velocity\u003c\/td\u003e\n\u003ctd\u003e100–120 FPM\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eMotor \u0026amp; Construction\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBackward-curved aluminum centrifugal blower\u003c\/strong\u003e for smoother airflow and durability\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e20-gauge powder-coated housing\u003c\/strong\u003e with commercial-grade construction\u003c\/li\u003e\n    \u003cli\u003eIntegrated pull handles for easier positioning\u003c\/li\u003e\n    \u003cli\u003eStandard 110\/120V grounded plug — no special wiring required\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eNoise \u0026amp; Power Efficiency\u003c\/h3\u003e\n  \u003ctable class=\"spec-table\"\u003e\n    \u003ctr\u003e\n\u003cth\u003eMetric\u003c\/th\u003e\n\u003cth\u003eRating\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eNoise Level\u003c\/td\u003e\n\u003ctd\u003eApproximately 50–60 dBA (comparable to a window AC unit)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eApproximately 250W at 100 FPM\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eDimensions \u0026amp; Weight\u003c\/h3\u003e\n  \u003ctable class=\"spec-table\"\u003e\n    \u003ctr\u003e\n\u003cth\u003eMeasurement\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e38\" W × 26\" H × 14\" D\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e67 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eResistance\u003c\/td\u003e\n\u003ctd\u003e0.327–0.682 IWG\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\n  \u003ch2\u003eWashable Magnetic Pre-Filter\u003c\/h2\u003e\n  \u003cp\u003eThe included reusable electrostatic pre-filter captures larger airborne particles before they reach the HEPA filter, maximizing filter lifespan and reducing maintenance costs. Unlike the disposable pre-filters found on lower-end FFUs, the Bonsai magnetic pre-filter is washable, reusable, and designed for long-term use.\u003c\/p\u003e\n\n  \u003ch2\u003eWho This FFU Is Best For\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eGrowers upgrading from a still air box to active clean-air equipment\u003c\/li\u003e\n    \u003cli\u003eHigh-volume agar, liquid culture, and transfer workflows\u003c\/li\u003e\n    \u003cli\u003eHome labs, classrooms, and small production spaces\u003c\/li\u003e\n    \u003cli\u003eAnyone needing more working area than a 2×2 FFU without moving up to a full 4×2 unit\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eReplacement Filters\u003c\/h2\u003e\n  \u003cp\u003eHEPA filters are consumables that gradually load with particulates over time. A \u003ca href=\"https:\/\/www.midwestgrowkits.com\/products\/bonsai-ffu-99-99-hepa-replacement-filter-for-3x2-fan-filter-unit\"\u003ereplacement H14 HEPA filter for the 3×2 FFU\u003c\/a\u003e is available so you can keep a spare on hand. The washable magnetic pre-filter extends the main HEPA filter's life by catching larger particles first, so under normal use you'll replace filters far less often than with a standard FFU.\u003c\/p\u003e\n\n  \u003ch2\u003e18-Month Warranty\u003c\/h2\u003e\n  \u003cp\u003eEvery Bonsai FFU is backed by our \u003cstrong\u003e18-Month Limited Warranty\u003c\/strong\u003e, covering manufacturer defects and workmanship issues under normal use. Built with upgraded premium components and commercial-grade construction, the Bonsai 3×2 FFU is designed for years of reliable operation in mycology and laboratory environments.\u003c\/p\u003e\n\n  \u003ch2\u003eBonus Offer\u003c\/h2\u003e\n  \u003cdiv class=\"ffu-callout\"\u003e\n    \u003cp\u003e\u003cstrong\u003eBuy any Bonsai FFU or Flow Hood and save 50% on compatible accessories and replacement filters.\u003c\/strong\u003e\u003cbr\u003e\n    \u003cem\u003eAccessories must be purchased at the same time for the discount to apply.\u003c\/em\u003e\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eShipping \u0026amp; Returns\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFREE shipping\u003c\/strong\u003e within the continental USA\u003c\/li\u003e\n    \u003cli\u003eUnopened units eligible for return\u003c\/li\u003e\n    \u003cli\u003eOpened units eligible for exchange only\u003c\/li\u003e\n    \u003cli\u003eShipping damage replacements handled promptly\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eProduct Video\u003c\/h2\u003e\n  \u003cdiv class=\"video-wrap\"\u003e\n    \u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; border-radius: 8px;\"\u003e\n      \u003ciframe src=\"https:\/\/player.vimeo.com\/video\/913861820?badge=0\u0026amp;autopause=0\u0026amp;player_id=0\u0026amp;app_id=58479\" title=\"Introduction to FFUs (Fan Filter Units)\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0;\" allowfullscreen\u003e\u003c\/iframe\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Midwest Grow Kits","offers":[{"title":"Default Title","offer_id":44595535282279,"sku":"FFU3","price":849.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0690\/3699\/8759\/files\/Bonsai_3_2_FFU_2026.jpg?v=1789057564","url":"https:\/\/fernprairiemycosupplies.com\/products\/bonsai-3-x-2-ft-99-99-hepa-flowhood-fan-filter-unit-ffu-120v","provider":"Fern Prairie Myco Supplies","version":"1.0","type":"link"}