Ductless Fume Hood

Paramount® Ductless Enclosures

Paramount® Ductless Enclosures are self-contained ventilation systems designed for safe handling of organic, formaldehyde, acid gas, sulfur compounds, or ammonia chemical fumes and vapors as well as particulates. Air inside the enclosure passes through carbon filters and, in some cases, additional HEPA filters, before being safely exhausted back into the laboratory. Two filter types may be stacked for mixed chemical or combination gaseous/particulate applications. No outside ducting is required.

Key Features

• Clean-Sweep™ air foil allows air to sweep the work surface to maximize containment
• Upper dilution air supply sweeps clean air to the back of the sash to keep contaminants away from the operator
• Upper containment sash foil directs contaminants away from the user's breathing zone
• Zone-perforated rear baffle with patented design promotes non-turbulent horizontal laminar airflow; pivots down for cleaning
• Side-entry air foils allow air to sweep interior surfaces to enhance containment
• Safety-First™ Vapor Sensor accurately detects filter break through with primary and secondary backup sensors providing redundant monitoring and detection of organic solvents, smoke particulates, ammonia gases, formaldehyde gases and hydrosulfide gases
• Early warning provided when 5-10% of filter life is remaining to allow time for filter changes
• ECM impeller operates at 52-62 dBA at 80 feet per minute; quieter, cooler and more energy-efficient at 95% efficiency; generates less heat for more comfortable working conditions
• Smart-Flow™ System adjusts motor speed automatically for filter pressure drop, barometric pressure and room temperature, and maintains constant airflow at the calibrated value
• Large LCD display (3" x 1.5") provides continuous status reports for each filter, airflow speed, and filter saturation and low airflow alarm messages
• Filter life and check timers trigger audible/visual alert messages after the specified number of hours has elapsed
• Digital touchpad controls
• Electronic security lock (optional activation) requires password to change operating parameters and prevents operation by unauthorized users
• Pre-wired fluorescent lamp with timer for energy-savings and safeguard for light-sensitive materials
• Ergonomic angled sash with patented sloped front allows closer view of work area, reduces glare and provides more comfortable operating position
• Hinged sash pivots upward for loading and has wiping seal to contain contaminants; larger models incorporate external gas-assist lift
• Durable tempered safety glass (1/4" thick) front sash and sides provide visibility, ambient light and chemical resistance; glass does not easily discolor or craze
• Convenient, front-accessible filter replacement with gas spring-assisted clamping mechanism that opens effortlessly and applies uniform pressure across the top surface of filters for leak-proof, one-step filter replacement
• Accommodates seven filter types to cover a wide variety of needs; filters are stackable to handle mixed chemical applications
• Two utility ports allow passage of tubing, electrical cords and interface cables from inside to back exterior for connection to services
• Durable powder-coated aluminum frame, steel rear baffle and plenum provide chemical resistance and robust construction; no unreliable plastic-to-plastic bonding used
• 8.2' power cord and plug (no plug on 230 volt models)

Sash Opening Specifications

• Spacious sash opening spans the width of the enclosure and is 9.4" (23.9 cm) or 12.0" (30.5 cm) high depending on the model
• Models with 9.4" sash opening height have 16.5" locking height and 19.0" maximum loading height
• Models with 12.0" sash opening height and 32.0" interior height have 25.8" locking height and 28.3" maximum loading height
• Models with 12.0" sash opening height and 35.0" interior height have 28.8" locking height and 31.3" maximum loading height

Optional Clear Glass Baffle Models

Optional clear safety glass baffle provides 360° visibility for teaching demonstrations. The baffle pivots down for cleaning.

Compliance and Certifications

• SEFA 9-2010, DH II
• SEFA 8-2010, Cabinet Surface Finish Tests
• ASHRAE 110-95
• ANSI Z9.5-2011
• UL 61010-1
• CAN/CSA C22.2 No. 61010-1
• CE Conformity Marking (230 volt models)
• ETL listed (115 volt models)
• Filter efficiency performance independently verified by University of Kansas
• Particulate containment data independently confirmed by SafeBridge Consultants, Inc.

Available Widths and Configurations

Paramount Ductless Enclosures are available in 2', 3', 4', 5', and 6' widths with multiple depth and height options:

• Standard models with 22.7" interior height and 9.4" sash opening
• Tall models with 32.0" interior height and 12.0" or 9.4" sash opening
• Tall & Deep models with 35.0" interior height and 12.0" or 9.4" sash opening
• Interior depths: 23.4" or 30.0"

Specifications Table