Polypropylene (PP) Fume Hood | Chemical Laboratory Ventilation

This PP laboratory fume hood is a made-to-order, floor-standing ducted enclosure for chemical laboratory ventilation, corrosive fume collection, and acid or alkali resistant work at normal operating temperatures. Its cabinet uses 8 mm welded polypropylene plate, while the dimensions, worktop, sash, services, controls, and exhaust interface are configured for the approved project.

• 8 mm porcelain-white PP plate cabinet with welded construction
• PP worktop, toughened-glass window, PVC door frame, and PP hardware
• Reference sizes of 1200, 1500, and 1800 mm, plus a connected 2400 mm layout
• Reference face velocity of 0.3 to 0.5 m/s at a defined sash position
• Customization for cabinet layout, logo, TFT display interface, services, and exhaust integration

What this PP laboratory fume hood is

A PP laboratory fume hood is a ventilated enclosure that draws room air through the sash opening and sends contaminated air to a ducted exhaust system. It provides a defined work zone for chemical operations that release corrosive vapors, acid or alkali fumes, odors, or light airborne contamination. The vertical sash gives the operator access while forming a physical barrier at the front of the work area.

The polypropylene vertical fume hood is configured as a floor-standing PP vertical fume hood with a base section and full-height superstructure. Reference widths are 1200, 1500, and 1800 mm. A connected 2400 mm arrangement can be specified when the apparatus or workflow needs a wider work area. The final internal dimensions, worktop layout, exhaust collar, and utility positions are shown on the approved drawing.

Hood body and exhaust system boundary

The hood body includes the PP enclosure, worktop, sash, service locations, and exhaust connection. It does not by itself establish the airflow delivered at the sash. Duct resistance, fan duty, sash position, room make-up air, and the control strategy all affect containment during operation.

The supply scope should distinguish the hood body from a complete exhaust package. PP ducting, exhaust fan, airflow-control valve, VFD fan control, room-pressure control, and wet scrubber can be included when specified. When they are not listed, the customer or ventilation contractor provides and coordinates them.

How to evaluate fit

Material selection starts with the process. Confirm the chemicals, concentration range, temperature, vapor or liquid exposure, contact duration, cleaning method, and likelihood of spills. These conditions determine whether PP is suitable for the cabinet, worktop, drain, ductwork, fan, and downstream treatment equipment.

Also confirm installation space, access route, ceiling clearance, duct path, power supply, fan location, and equipment dimensions. These inputs determine the hood width, service layout, control requirements, and the boundary between the hood and the ventilation system.

Key features

PP construction for corrosive laboratory conditions

The confirmed cabinet body uses 8 mm porcelain-white PP plate with welded construction. The worktop is PP board, and the listed handle and hinge accessories are PP injection-molded components. This material combination is intended for laboratories that need corrosion-conscious construction in the work area rather than a general painted-steel enclosure.

The material remains part of the complete chemical-compatibility decision. PP is commonly selected for many acid and alkali applications, but it is not a blanket approval for every solvent, oxidizer, mixed fume, elevated-temperature process, or long-term exposure condition. Check the process before selecting the hood and exhaust materials.

Built around laboratory layout and services

Reference configurations cover 1200, 1500, and 1800 mm widths at 800 mm depth and 2350 mm overall height. A connected 2400 mm configuration can be used for a wider work area. Internal clearance, working sash opening, base cabinet, service panels, and exhaust-collar position can be adjusted around the apparatus and room layout.

Customization can include worktop arrangement, sink or cup sink, electrical outlets, water and gas fittings, lighting, control panel, airflow monitor, front-cabinet logo, TFT display interface, and connection details. Equipment should be positioned so it does not obstruct the rear extraction path or occupy the sash opening.

Technical specifications

Confirmed configuration and order-specific items

The table separates confirmed product information from values that depend on the final installation. The approved drawing and supply schedule record internal dimensions, sash opening, exhaust collar, utilities, controls, accessories, and any selected ventilation equipment.

Reference sizes and custom dimensions

Size selection factors

Nominal width is only the first sizing decision. The internal work area must fit the apparatus while leaving clearance around it for airflow. Allow for support stands, tubing, cables, service fittings, and the movement needed to load or maintain the equipment. Tall apparatus may also change the usable sash opening and exhaust requirement.

Check door and corridor access, ceiling height, base-cabinet clearance, service entry points, and the duct route before approving a size. A wider hood has a larger face area, so its exhaust requirement can increase even when the intended face velocity is the same.

Reference metric size options

The dimensions below are common planning configurations, not fixed manufacturing limits. XICHENG can adjust the external envelope, internal work zone, base arrangement, sash, worktop, services, and exhaust connection to the approved apparatus and laboratory layout.

Layout review before ordering

The order drawing should show the external dimensions, usable internal width and height, maximum sash opening, work-surface height, base arrangement, service positions, and exhaust-collar location. It should also identify removable panels and the clearance needed for installation and maintenance.

For connection to an existing exhaust system, provide the available airflow and static pressure at the connection point. For a new system, provide the proposed duct route or room drawing so the fan, PP duct size, controls, and treatment equipment can be evaluated with the hood.

PP construction details

Cabinet and worktop construction

The hood body uses an 8 mm PP plate cabinet with welded construction and a PP board worktop. The welded PP enclosure is relevant where the work zone is expected to face corrosive laboratory conditions at normal operating temperatures. The final worktop arrangement can be flat or include a raised edge, cup sink, full sink, drain, or equipment cut-outs.

Every penetration affects how spills, cleaning water, and service lines move through the cabinet. Record equipment cut-outs, drain details, sink location, and service points on the drawing before manufacture. This is especially important when liquids or condensate may reach the worktop, base cabinet, or exhaust connection.

Window, door frame, and PP hardware

The front window uses toughened glass for visibility into the operating area. The adjusting door frame uses PVC white-board material, and the handle and hinge accessories are PP injection-molded components. The final front-access assembly is configured for the approved sash size, service layout, and chemical exposure.

Check the sash guides, stops, seals, service fittings, drain parts, and access panels against the chemicals and cleaning method. Components exposed to liquid, corrosive condensate, or frequent wash-down may need a different material or arrangement from the outer cabinet.

Chemical compatibility and temperature

PP construction is suitable for many corrosive laboratory applications, but material selection still depends on the chemicals, concentration range, temperature, physical form, contact duration, and cleaning agent. This configuration is intended for normal-temperature laboratory operation. High heat or a chemical outside the PP compatibility range needs a different material strategy.

Review the hood as a complete exposed path. A PP cabinet does not make a stainless steel drain, unsuitable gasket, fan component, duct section, or wet scrubber automatically compatible with the same exhaust stream.

Applications

Chemical laboratory and corrosive fume use

This PP laboratory fume hood is intended for chemical operations that release corrosive vapors, acid or alkali fumes, odors, or light airborne contamination and require ducted local exhaust. Typical work includes reagent preparation, sample treatment, transfer work, wet chemistry, and analytical procedures. The actual process must remain within the material and ventilation limits defined for the final configuration.

Place apparatus far enough inside the enclosure to allow air to enter across the front opening. Large equipment should be raised or positioned so it does not block the rear extraction path. Do not use the hood for permanent chemical storage because stored containers reduce working space and disrupt airflow.

Acid and alkali application review

PP construction provides corrosion resistance and acid/alkali resistance for many compatible wet-chemical and corrosive-fume applications. These material properties do not replace a chemical schedule or discharge assessment for the actual operation.

Mixed chemical streams, strong oxidizers, elevated temperatures, high solvent loading, abrasive residues, and prolonged wet contact need specific review. Where the exhaust cannot discharge directly, select the duct, fan, and wet scrubber or other treatment equipment from the same chemical basis as the hood.

Laboratory site types

The listed application areas include laboratories, chemical plants, hospitals, and schools. In each setting, select the hood from the process rather than the building name. A teaching laboratory, for example, may need a different service layout and operating procedure from a chemical-plant quality-control room.

A chemical fume hood is not a clean bench or biological safety cabinet. It controls exposure by exhausting air away from the room. It does not provide product protection or HEPA-filtered sterile airflow unless a separate engineered system provides those functions.

Ventilation system compatibility

Fume hood body within the ventilation system

The hood contains the source and directs contaminated air toward the exhaust collar. The fan and duct system create the pressure difference that moves air through the sash opening. Stable containment depends on the complete path from the room, through the hood and PP ductwork, to treatment equipment or the final discharge point.

Face velocity needs to be assessed at a defined sash position. A reference range of 0.3 to 0.5 m/s can support early planning, but the site requirement, risk assessment, and commissioning test determine the final target. Excessive airflow can create turbulence and increase energy use. Insufficient airflow can reduce containment.

Hood body versus complete exhaust system

The hood body does not automatically include an exhaust fan, external PP ductwork, airflow-control valve, VFD fan control, room-pressure controller, or wet scrubber. These items can be supplied as a coordinated package, or the hood can connect to equipment designed by the customer’s ventilation contractor.

The supply scope should identify the boundary at every connection: exhaust collar, power supply, water and gas services, drain, control signal, fan starter, and building-management interface. This avoids gaps between the equipment supplier and the site contractor.

Inputs for ventilation selection

Ventilation selection requires the hood width, sash opening, target face velocity, duct route, fittings, fan position, discharge height, and any exhaust-treatment equipment. Room volume, make-up air, pressure relationship, ambient temperature, and simultaneous hood operation may also affect the design.

For CAV or VAV systems, state the control sequence, monitor type, alarm functions, emergency mode, valve interface, and building-management signal. This information allows the hood, airflow-control components, fan, and treatment equipment to be assessed as one operating system.

Customization options

Control interface, TFT display, and branding

The front of the cabinet can include a customer logo or site identification when specified. An optional TFT color LCD screen can be configured with approved interface content, including operating information, alarms, logo, contact details, or other project-defined display fields.

A display does not replace the airflow-control system. Its functions depend on the controller, sensor, valve, fan interface, and control sequence. The supply scope should identify every displayed value, command, alarm, and communication interface.

Utilities and work-area layout

Specify the worktop arrangement, sink or cup sink, drain, equipment cut-outs, electrical outlets, water fittings, gas fittings, vacuum points, lighting, and service penetrations on a dimensioned room or bench layout. These details determine the internal clearance, access panels, and service routing.

For controls, state the power supply, fan arrangement, airflow strategy, alarm functions, emergency mode, interface language, and building-management requirements. Supply logo files and display content in a usable format with the required position and size.

Configuration scope

Each PP fume hood is manufactured to the approved project configuration rather than supplied as one fixed standard SKU. Reference dimensions support early planning; the quotation, technical schedule, and approved drawing define the final cabinet, work zone, services, controls, and exhaust interface.

Customization can cover the superstructure, base cabinet, PP worktop, sash, services, lighting, controls, exhaust collar, access panels, and connection interfaces. It can also include matching PP ductwork, airflow valves, actuators, fans, VFD control, or exhaust-treatment equipment.

Each selected item needs a clear description on the drawing and supply schedule. Generic language such as “standard accessories included” does not identify utility standards, plug types, fitting materials, display functions, or control interfaces for a site-specific order.

Selection notes

When this PP fume hood is a good fit

This PP fume hood is suitable when the laboratory needs a corrosion-conscious enclosure, PP work surface, and ducted chemical fume capture at normal operating temperatures. It is commonly considered for wet chemistry, acid or alkali handling, sample preparation, and laboratory areas where a metal cabinet would not be the preferred exposed material.

The decision follows the actual exposure. Base material selection on the chemical schedule, temperature range, and construction requirements.

When chemical compatibility needs review

A compatibility check is required for mixed chemical streams, concentrated oxidizers, elevated temperatures, high solvent loading, abrasive residues, aggressive cleaning agents, or prolonged wet contact. The same check applies when condensate can collect in the hood, drain, duct, fan, or treatment equipment.

If the exposure is unsuitable for PP, the solution may use a different liner, work surface, gasket, drain material, fan material, or a stainless steel or FRP fume hood. Changing the exposed component can be more practical than assigning one material to the complete system.

Information needed for selection

Provide a process description with the chemical list, concentration range, temperature, quantity, operating time, and cleaning method. Add the apparatus dimensions, required working clearance, utilities, preferred hood width, and installation drawing.

For the exhaust side, provide the target face velocity or site standard, sash position, duct path, fan location, discharge requirement, and treatment requirement. This information allows the configuration to be matched to the equipment before manufacture.

Packaging and quotation information

Packaging, minimum order, and warranty

The listed minimum order quantity is one unit and the listed warranty period is one year. Warranty terms are confirmed in the formal quotation and depend on the agreed operating and maintenance conditions. Custom accessories and third-party components may carry separate warranty terms.

The listed product packing uses bubble film with a wooden-frame transport package. The final packing method depends on the selected size, quantity, destination, and shipping method. Connected or unusually large units may be separated into installation sections to reduce handling risk.

Origin and production schedule

XICHENG manufactures the equipment in Guangdong, China. Production planning depends on approved drawings, order quantity, PP material, control components, and other selected items. A hood with a standard external size can still need additional engineering time when the worktop, services, display interface, or control sequence is site-specific.

The formal quotation should state the drawing-confirmation period, production lead time, packing method, and delivery terms. The schedule should be tied to the approved configuration rather than a generic capacity statement.

Information needed for a quotation

Send the quantity, destination, preferred dimensions, application, chemical information, apparatus size, required utilities, and requested customization. Include the exhaust route, fan scope, control requirements, and any scrubber or treatment requirement.

For custom installations, provide room drawings and photographs of the installation area. The response can then separate confirmed items from assumptions and define a clear equipment boundary.

Datasheet and technical review

Datasheet for the selected configuration

After the main configuration is selected, the datasheet records the model reference, external and internal dimensions, PP construction, work surface, sash, services, electrical supply, controls, exhaust connection, accessories, packing method, and supply scope.

Read the datasheet with the approved drawing. A table can list a service point, but the drawing shows its exact position and whether it conflicts with apparatus, access panels, or the intended airflow path.

Information needed for technical review

The technical review uses the process summary, chemical exposure, apparatus layout, room dimensions, service schedule, and ventilation information. Where a site standard or consultant specification applies, include the relevant section and any required tests or documentation.

Keep unconfirmed values marked for confirmation. Inserting a generic value can create conflicts later, especially for material selection, sash opening, collar size, airflow, electrical standard, and utility fittings.

Optional Fume Hood Airflow and Sash Control Integration

The XICHENG laboratory-products catalog describes a complete fume hood VAV control architecture in which the hood, sash sensing, local controller, airflow-control valve, exhaust fan and room-air system work as coordinated components. These controls are optional project scope. They do not change the hood-body construction or prove containment until the installed system is commissioned.

Choose CAV or VAV from the Operating Requirement

A CAV design uses one scheduled exhaust airflow and must maintain that flow at the approved sash condition. A VAV design changes exhaust demand as the sash or measured face velocity changes. The PDF shows fume hood control packages using sash-position or face-velocity input with a fast airflow-control valve. Select the control method from the risk assessment, operating sequence, room make-up air and required response rather than adding a VAV label to an otherwise undefined system.

For a Venturi mechanism, compare the VAV Venturi Air Valve or CAV Venturi Air Valve. A rotating-blade solution can use the VAV Butterfly damper. Each valve still needs its own size, pressure, material, sensor, actuator and commissioning schedule.

Local Controller, Display, Alarm and Emergency Functions

The catalog includes fume hood controllers and local panels that can display operating information, accept sash-position or face-velocity sensing, provide audible/visual alarms and support an emergency exhaust command. The selected package must identify the measured variable, display units, alarm thresholds, delay, acknowledgement, emergency priority and interface with the building management system. A display value is useful only when its sensor range, calibration and acceptance method are defined.

Automatic Sash Control and Safety Inputs

An optional automatic sash-control system is shown with a control panel, controller, reel-type displacement sensor, anti-pinch hand sensor, synchronized drive and personnel detection. The controller supports manual, follow and energy-saving modes and can accept presence, foot-switch and anti-pinch inputs according to configuration. The project must define movement limits, obstruction response, manual release, loss-of-power behavior and periodic safety testing. Automatic movement does not replace the hood operating procedure or airflow alarm.

Room Supply, Exhaust Tracking and System Boundary

The hood exhaust command affects room air balance. Where several hoods or other exhaust devices operate together, coordinate the valve signal with room supply, general exhaust and the target pressure relationship. The room controller, sensors, valve actuators, fan/VFD logic, BMS points and final testing remain separate scope unless the quotation lists them.

For a PP hood, keep control electronics and actuator-side components outside the contaminated airflow where the approved design allows. The PP cabinet material does not establish the chemical compatibility or enclosure rating of sensors, wiring, displays or actuators.

For a project-ready control quotation, provide hood width, maximum working sash opening, target face velocity or airflow modes, valve location and available pressure, room supply/exhaust schedule, fan/VFD arrangement, sash-control requirement, alarm and emergency sequence, BMS protocol, point list and failure behavior. The returned proposal should identify every supplied sensor, controller, display, valve, actuator, cable and field responsibility.

Related products

Laboratory control and ventilation components

A complete PP fume hood installation may also require laboratory airflow-control valves, fume hood control systems, VFD fan control, PP duct components, an exhaust fan, and site-specific exhaust treatment. Select these products from the same airflow and chemical basis used for the hood.

Where a wet scrubber or other treatment unit is required, provide the contaminants, concentration, temperature, airflow, and discharge requirement. The hood captures the source, while the downstream system conveys and treats the exhaust air.

Related fume hood categories

Compare this PP configuration with stainless steel fume hoods when a cleanable metal work area is preferred and FRP fume hoods for composite construction requirements. The laboratory fume hood category provides the full material range.

Material comparison should use the process conditions, cleaning method, fire requirements, mechanical load, and expected service environment. No single hood material is suitable for every laboratory chemical operation.

FAQ

What is a PP laboratory fume hood used for?

It is used for chemical laboratory ventilation, corrosive fume collection, and acid or alkali resistant laboratory work that needs ducted local exhaust. Typical tasks include reagent preparation, sample treatment, transfer work, wet chemistry, and analytical procedures, subject to the approved chemical and airflow limits.

Why choose PP for a chemical fume hood?

PP provides a corrosion-conscious enclosure and work surface for many acid and alkali applications at normal operating temperatures. This product uses an 8 mm welded PP cabinet body and PP worktop. The chemical list and temperature still need to be checked before final selection.

What construction details are confirmed?

The confirmed product information lists an 8 mm porcelain-white welded PP cabinet body, PP board worktop, toughened-glass window, PVC white-board adjusting door frame, and PP injection-molded handle and hinge components.

Is a PP fume hood suitable for every chemical?

No. Mixed chemical streams, strong oxidizers, solvents, high heat, and prolonged exposure can require a different material or component arrangement. Confirm the chemicals, concentration, temperature, and cleaning method before selecting the hood and exhaust system.

What sizes are available?

Reference external sizes are 1200 x 800 x 2350 mm, 1500 x 800 x 2350 mm, and 1800 x 800 x 2350 mm. A connected 2400 x 800 x 2350 mm layout can be considered for a wider work area. Final internal dimensions and sash opening are shown on the order drawing.

What face velocity and exhaust volume are required?

The listed reference face velocity is 0.3 to 0.5 m/s at a defined sash position. The required exhaust volume cannot be set from hood width alone. It depends on the sash opening, hood geometry, duct route, fittings, fan static pressure, treatment equipment, and site standard.

Can the hood be customized?

Yes. Options include dimensions, worktop arrangement, sinks, service fittings, outlets, lighting, controls, airflow monitoring, exhaust connection, base cabinet, logo, and TFT display interface. The drawing and supply schedule define the final scope.

Are the fan, ductwork, and scrubber included?

Only if they are listed in the supply scope. The hood can be supplied alone or as part of a coordinated package with PP ductwork, fan, airflow controls, VFD control, and exhaust treatment. System selection requires the hood airflow, duct route, contaminants, and site conditions.