Item #: FL1
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Midwest Grow Kits has partnered with Bonsai Flow Hoods to introduce the first personal & portable Laminar Flow Hood. Backed by the experts in the Bio-pharmaceutical industry, the HEPAFLOW-12 is designed from the ground up for the Mushroom enthusiast to create a 99.99% sterile work space.  Stop wasting money on spores and never buy another spore syringe again! Whether you are a beginner or advanced grower you can do it all!

Bonsai Flow Hoods make it possible to:

  • Work with Agar plates
  • Make your own spore syringes
  • Perform Grain to Grain transfers
  • Cloning, isolating, and more!

  • Each Flow hood includes/features:

  • Simple 110V plug in play design
  • Horizontal Air Flow 
  • Made with 3/4" Cabinet Grade Birch Plywood
  • On/Off switch
  • Acrylic side air buffers
  • Replaceable 99.99% Micron Filter designed to last 3-5 years of normal use
  • User's Guide that covers sterile technique, how to make your own spore syringes, work with agar, transfer grain and more!
  • 1 Year full parts and labor warranty
  • Retail: $549.99
    Price: $449.00
    You Save: $100.99 (18.4%)


      Say hello to the endless possibilities a Laminar Flow Hood brings to this hobby!  The HEPAFLOW-12 is a personal and portable Horizontal Laminar Flow Hood which combines a 135 cubic foot per minute fan and a 12"x12" Ultra-Micron HEPA filter rated at 99.99% efficient at 0.3 microns.  The fan filter combination produces 200 feet per minute down flow which is above the standard of laboratory and clean room use. Whether you are a beginner or advanced grower you can now:

    • Easily work with Agar plates to inoculate any substrate
    • Make your own spore syringes 
    • Inoculate Jars, bags etc contaminate free
    • Transfer colonized mycelium from one bag or Jar to another!
    • Learn Cloning, isolating, and more!
    • Each Flowhood includes/features:

    • Simple 110V plug in play design
    • Expertly crafted with 3/4" Birch cabinet grade plywood
    • On/Off switch
    • Acrylic air buffers
    • Replaceable 99.99% Micron Filter designed to last 3-5 years of normal use
    • Midwest's User's Guide that covers sterile technique, how to make your own spore syringes, work with agar, transfer grain and more!
    • 1 Year full parts and labor warranty
    • Also available in Natural Clear coat finish

    • Bonsai Flowhoods are hand crafted here in the USA! Each unit is rigorously tested by a certified technician before shipping. This product ships FedEx directly from the manufacturer. The HepaFlow-12 are painted white with Sherwin Williams Paint Shield Microbicidal latex paint. This new paint technology kills 99.9% of bacteria and germs that touch it. Learn more at  Natural birch with a clear coat finish are available on request, please allow 7-10 day lead time for custom finishes.

      How does a flowhood work with mushroom growing?

      This model is a horizontal flowhood which creates a low velocity air flow that blows toward you. This air is super filtered and is 99.99% sterile. It can be used in any environment for many different things. The sterile moving air allows you to work in the space and open up substrate jars, bags, transfers, make spore syringes, work with agar plates and much more. If you ever experienced mold from inoculations, this will eliminate that. 

      Dimensions: 15" Wide X 26" Tall X 15" Deep   28.5 lbs

      Build Specifications and Features

      Motor and Electrical Connections:

      Blower Fan: Fasco B24220

      Voltage: 120v to ground

      Connection: 14/2 wire shielded in metal clad conduit (mc).

      Switch: Single pole single throw 120v with ground.

      Power cord: 16 gauge with ground.


      12"×12" Minpleat HEPA

      Rating: 99.997 @ 0.3 micron

      Pressure drop: 0.58 @ 100 cm


      Material: 3/4" birch plywood top grade.

      1 Piece CNC machined removable front trim cover

      All wood screws are #8 2" and are installed with a countersink to prevent splitting.

      1/4 20 machine screws with washer and nut secure the motor to the fan box - this reduces vibration.

      Threaded metal inserts prevent stripping the plywood frame when changing the filter.

      100% silicone caulking used on interior joints to prevent air leakage.

      Overall Customer Rating of 16 Reviews:

      Good flowhood

      • Price
      • Quality
      • Small
      Good flowhood for an introduction into the hobby.
      Worth the value you can get in return for clean air, which leads to success in your mycology endeavors.

      Perfect for taking your work to the next level

      • price
      • size
      • weight
      • function
      I don't want to speak too soon, but I've had a 0% contamination rate since using this flow hood. It is the perfect size for everything I do, I was worried it might be too small for my work but it's just right for mycology uses.

      Works like described!

      Perfect for any hobby user! You will be so happy when you can work with agar and grain transfers using this instead of a Still air box, its a dream! Makes this hobby so much more fun! Well built, and very simple to use and move around. 100% success so far! You could build a bigger one yourself but it would cost you only a little less and if you're not a carpenter then I would recommend this to anyone! I do not use the side plexiglass and have had no issues. I think if you are new to the hobby it acts more like a guard rail to keep you in the right space but really not needed!


      Bonsai flow hood

      • Size
      • Quiet
      • Price
      • None
      It’s THE perfect sized flow hood for any beginning to intermediate mycologist ! For the price , your not going to find this quality any where else . After all my research , this was the best option on the market and I’ve used it successfully every time it’s been used. Contamination free , every time .


      • well built
      • ZERO contams
      Can't say enough good things about this little flowhood! Looks like they use a CNC machine for the frame! (expensive) and I love the updated switch! So far 100% sucess and zero contams! Plenty of space for anyone that isnt doing commercial growing

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