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What is the current lead time?

  • 10-11 weeks on all hand-built models.

  • 3-4 weeks on DIY Kits

  • 0-3 months on FFU's (Pre-order only)

What kind of filters are used?

  • We use Hepa Filters that are rated 99.97% efficiency or higher.​​

  • All filters are rated for 3,000 hours of use.


What kind of fans are used?

  • We use 3 different types of fans depending on the model. We use Axial, Centrifugal and Dayton blowers.


What size hoods do you offer?

  • Please visit our shop page to see our current models. If you would like a custom flow hood, please contact us so that we can get you a quote.


How can I tell if my flow hood is blowing enough air?

  • Hold a lighter in front of the flow hood, roughly 3-6 inches away from the face of the filter. The flame should have a 30-90 degree bend.

  • You can also run regular open air petri dish tests in front of the unit to ensure you are working with the cleanest filter possible.


Do you ship to other countries?

  • Yes, we do! Please research your voltage requirements. Our units are 110-120v and will require a voltage converter if being used outside of the U.S. We offer voltage converters in our shop. We will not be liable for any damages if you choose not to purchase a converter direct. Please message us if you have any questions.

  • *Please note that voltage ADAPTERS will NOT work*


How much is a custom engraving?

  • We are not currently offering custom engravings


How long do the filters and fans last?

  • The filters are rated for up to 3,000 hours. 

  • The fans are rated for 30,000 hours.

  • All fans are covered for 1 year from the date of purchase.


What maintenance does my flow hood need?

  • We recommend replacing the filters about every 6 months to one year depending on frequency of use. Routine cleanings will optimize results and prolong the longevity of your filter.

  • We recommend getting inside of the unit and cleaning it every few months. This can be achieved by using a vacuum to suck out any debris that may have accumulated inside.

Return Policy:

  • We do not accept returns or refunds after 48 hours of purchase.

  • If a return is accepted, customers are responsible for return shipping charges. We recommend purchasing tracking when mailing your return.

  • The package must be in an un-used condition and must be packaged properly to avoid any damage.


  • Please include a copy of your original receipt.

  • After the return is received, we will inspect the condition of the item and determine the appropriate refund and/or exchange.

  • A 5% restocking fee will be held from the refund.

  • Refunds will be sent to the original payment method. Please allow at least 15 days from the date of receipt to process the return. Refunds may take 1-2 billing cycles to post to your credit card statement. We will notify you by e-mail when your return has been processed. Thank you!

  • We reserve the right to cancel an order at any time for any reason.​​


  • The warranty program is our commitment to you. We ensure that all products are free from defects in manufacturing for a period of one year from the date of purchase. This includes the unit and fan. If a product is found to a have a defect in the material or workmanship, we will take the appropriate actions defined in this warranty to resolve the issue.

  • The warranty program applies to any flow hood units manufactured or sold by Lab Rat Flow Hoods. The program covers products that have become defective, malfunctioned, or determined to be unusable to our standards. If your product is defective within the one-year time frame, we will replace the item.

  • The warranty does not cover abuse or misuse of the item. Including but not limited to, physical damage, submersion of water, incorrect installation, incorrect voltage input and any misuse for any reason other than the intended purposes. Lab Rat Hoodz is not responsible for consequential loss or incidental damage caused by said actions. We will not warranty any damage from normal wear and tear such as dings and scratches.

  • To initiate a product warranty claim, please contact us through our support portal with your order number and proof of purchase.


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