Science — Technology

Refurbishing an Inexpensive Exhaust Ventilation System for a Kitchen or Laboratory

Home semiconductor fabrication poses risks due to the usage of harsh chemicals, such as hydrochloric acid, for processes like doping and etching. Handling these substances at home can be perilous and exposing oneself to hydrochloric acid can lead to serious harm.

, and Administrator

2025 September 15 . 7:49 PM

2 min read

Upgrading an Affordable Extraction System for Kitchen Fumes

Refurbishing an Inexpensive Exhaust Ventilation System for a Kitchen or Laboratory

In an effort to ensure safer and more efficient chemistry work, [ProjectsInFlight] has recently completed a remarkable project: the restoration of a used fume hood and the creation of a custom lab rack.

The journey began when a chemical incident prompted [ProjectsInFlight] to seek a fume hood. Recognising the high costs associated with new equipment, they turned to the used market, where they found a fume hood that was destined for the scrap heap. For just $200, they were able to purchase the fume hood and give it a new lease of life.

To get the fume hood working, some LED lighting and cleaning were required. Additionally, a high flow rate fan was added to the fume hood restoration to ensure optimal performance. It's worth noting that companies are obligated by OSHA and the EPA to clean their fume hoods before removal, making [ProjectsInFlight]'s diligence all the more commendable.

The lab rack, a ladder-like device with numerous mounting points for clamps, was designed with safety and ease of use in mind. Inspired by a gold nonparticipant fabrication hack, the lab rack was crafted using a lathe. To keep costs down, polyurethane was used instead of solid epoxy for the work top. A table was built for the hood, featuring an acrylic painted plywood work surface.

The lab rack includes machined chilled water and vacuum inlet ports, making it a valuable asset for any lab. The fume hood, now restored and integrated with the lab rack, ensures no leakage of fumes, providing a safer environment for chemistry work.

[ProjectsInFlight], who bought the Fümmehauchabsorber for a bargain price of $200, is no stranger to impressive projects. They have previously been featured on this website for their innovative work. This latest project demonstrates their commitment to safety, cost-effectiveness, and the promotion of DIY science.