Profile: Air Science® LLC manufactures a complete series of ductless fume hoods, ductless workstations, laboratory filtration products, and custom enclosure. Our products encompass a wide range of benchtops, workstations and laboratory filtration products for the Life Science, Forensic and Pharmaceutical industries. Purair® Basic ductless fume hoods are found in research laboratories, educational facilities, and forensic laboratories. These products are designed to protect the user and the environment from hazardous vapors generated on the work surface. Our products are available in 3 standard sizes, each with 4 configuration options and metal or polypropylene construction, totaling 24 standard models.