Used Very Good ESCO Airstream

Esco Ascent Ductless Fume Hoods provide protection to both laboratory
personnel and the environment from toxic fumes and are quickly becoming
a viable alternative to conventional fume hoods. Unlike conventional
fume hoods, these hoods filter out chemical fumes and recycle air
directly back to the laboratory, providing energy savings, personnel
and environmental protection, convenience as you do not have to deal
with complicated ducting systems, and mobility, since ductless hoods
are independent systems which do not require connection to extraction
systems.