Chemical Fume Hood Chemical Fume Hoods are designed to minimize chemical and toxic gas exposure to research workers. They are the most important engineering tools in the lab in terms of protection. The toxic chemicals are filtrated through the fume hood by a continuous vacuum. You can clearly see all the experiments, but the users are perfectly protected. Our chemical fume hoods have an audible and visual alarm to monitor the ventilation system. You will be able to tell if there is a fan failure. Our systems guarantee a total safety in any circumstances of use, so you have no worries. Erlab insures your safety and we stand behind our products. We have been in business for over 40 years, and we were the first to create a ductless filtering fume enclosure product. Since that invention, many other products succeeded and our chemical fume hood is proudly one of those. You can contact us today to get more information. We have several brochures available!