Ductless Fume Hood FH (C)

Specifications

Model	BB-FH700(PD)	BB-FH1000(PD)	BB-FH1000(C)
External Size	700*700*1100mm	1000*700*1100mm	1000*830*2140mm
Internal Size	680*606*688mm	980*606*688mm	910*690*740mm
Max Opening	640mm	640mm	650mm
Airflow Volume	230 m³/h	230 m³/h	136m³/h
Air Velocity	0.3~0.8m/s	0.3~0.8m/s	0.4~0.6m/s
Noise	≤65dB(A)	≤65dB(A)	≤58dB(A)
LED/Fluorescent Lamp	LED 15W	LED 15W	Fluorescent 14W*2
Illumination	≥400lx	≥400lx
Blower	Built-in centrifugal blower	Built-in centrifugal blower	Built-in centrifugal blower, speed adjustable
Power Supply	220V, 50/60Hz	220V, 50/60Hz	AC220V±10%, 50/60Hz; 110V±10%, 60Hz
Consumption	150W	150W	400W
Material	Main Body: PP plate, thickness 8mm Work Table: Chemical resistant phenolic	Main Body: PP plate, thickness 8mm Work Table: Chemical resistant phenolic resin	Exterior: Cold-rolled steel with anti-bacteria powder coating Side Window: Acrylic Window Work Table:Chemical resistant phenolic resin
Standard Accessory	Active carbon filter*2	Active carbon filter*2	Fluorescent Lamp, Base cabinet, Total load of 2 waterproof sockets: 500W;Chemical Filter
Optional Accessory	Water tap, Gas tap, Water sink, Base stand, UV lamp, HEPA filter	Water tap, Gas tap, Water sink, Base stand, UV lamp, HEPA filter	Water tap, Gas tap, Water sink, Electric height, Adjustable base stand, HEPA Filter, USB module,UV Lamp
Net Weight	67kg	85kg
Gross Weight	87kg	115kg	290kg
Package Size	820*820*1280mm	820*820*1280mm	1140*1040*1490mm
Package Size_Base cabinet	--	--	1140*1040*1060mm

Introduction and Principle

A ductless fume hood, also known as a recirculating fume hood, represents a critical apparatus within laboratory settings designed to ensure the safety of personnel by effectively containing and removing hazardous fumes, vapors, or particulate matter generated during experimental procedures. Unlike traditional ducted fume hoods which expel contaminated air directly to the outside environment, ductless fume hoods operate by filtering and recirculating the air within an enclosed workspace, thereby mitigating the need for external ventilation systems. These hoods employ a combination of filtration technologies such as activated carbon, HEPA (High-Efficiency Particulate Air) filters, and sometimes other specialty media, to capture and neutralize airborne contaminants before releasing the purified air back into the laboratory environment. Types of Fume Hoods:

1. Ducted Fume Hoods: These fume hoods are equipped with ventilation systems that connect to external ductwork, facilitating the direct expulsion of hazardous fumes outside the laboratory building. Ducted fume hoods offer high containment capabilities and are suitable for applications involving extremely toxic or volatile substances.
2. Ductless (Recirculating) Fume Hoods: Operating without external ducting, ductless fume hoods utilize filtration systems to purify and recirculate air within the hood, effectively removing harmful contaminants. These hoods offer flexibility in laboratory layout and are ideal for environments where ductwork installation is impractical or cost-prohibitive.
3. Floor Mounted Fume Hoods: Floor mounted fume hoods are installed directly onto the laboratory floor, providing a stable and secure containment solution. These hoods offer versatile configurations and can accommodate large equipment or apparatuses that may not fit within standard bench-mounted fume hoods. Floor mounted fume hoods are particularly suitable for laboratories requiring heavy-duty ventilation and specialized equipment setups.
4. Special Applications Fume Hoods: Special applications fume hoods encompass a diverse range of specialized containment solutions tailored to specific laboratory requirements. These may include:
   • Perchloric Acid Fume Hoods: Designed specifically for handling perchloric acid and its derivatives, these fume hoods feature specialized construction materials and exhaust systems to prevent the buildup of explosive perchlorate salts.
   • Radioisotope Fume Hoods: Engineered to handle radioactive materials safely, radioisotope fume hoods incorporate lead shielding and HEPA filtration to minimize radiation exposure risks.
   • Acid Digestion Fume Hoods: These hoods are optimized for digesting samples with strong acids, featuring corrosion-resistant materials and enhanced filtration systems to withstand corrosive vapors.
   • Glove Box Fume Hoods: Glove box fume hoods provide a sealed and controlled environment for handling sensitive or hazardous materials, allowing operators to manipulate samples or equipment within a contained workspace using integrated gloves.
   • Animal Handling Fume Hoods: Designed for working with laboratory animals or biological specimens, these fume hoods feature specialized airflow patterns and containment features to minimize allergen exposure and maintain animal welfare standards.

Apparatus and Equipment

Advantage: 1. LCD Touch screen control panel, easy to operate. 2. With memory function in case of power-failure. 3. 8'' slope front ergonomics design, fatigue-free working posture. 4. Temperature and humidity sensors, can detect indoor temperature and humidity. 5. Three side transparent acrylic windows, front window reversal design, easy to operate. 6. The base cabinet is equipped with a middle partition. 7. Electronic control system, anti-overload, anti-electric shock, stable performance, long service life. 8. Inside and outside probe, detect indoor air pollution and filter conditions. Audible and visual alarm for changing filter.