Industry-Specific Cleanroom Equipment

Negative Pressure Isolation Room Unit

A mobile two-stage HEPA exhaust cabinet that removes contaminated room air, supports inward airflow and provides local pressure and operating-status indication.

Two-Stage Filter Train
Variable-Speed Exhaust Fan
Room-Pressure Display
Mobile Ducted Configuration

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Product Introduction

The Negative Pressure Isolation Room Unit is a purchasable mobile air-handling cabinet for converting a suitable healthcare room or contained zone to controlled exhaust operation. Contaminated air enters through the lower perforated intake, passes through a pleated prefilter and a gasket-sealed HEPA stage, then reaches an upper-rear centrifugal fan that discharges through the top duct collar and flexible connection. A powder-coated double-skin enclosure separates the service compartments, while compression-latched doors provide access to the filter train and fan without turning the product into a general-purpose comfort air conditioner. The front control fascia combines fan control, room-pressure indication and distinct normal/alarm status lights; paired sensing tubes connect the display to the monitored pressure points.

Key Features

A shallow prefilter intercepts coarse loading before the deep HEPA cartridge, extending useful final-filter service intervals.

The centrifugal fan is positioned downstream of both filters so the contaminated section remains on the suction side of the airflow path.

A single top discharge spigot and flexible duct cuff support connection to an approved outdoor exhaust route or a defined filtered-return arrangement.

Four lockable swivel casters, separated filter and fan access doors, and color-coded pressure ports simplify relocation, inspection and setup.

Customer Product Concerns

A portable isolation exhaust unit must establish useful directional airflow without allowing filter bypass, losing pressure visibility or obstructing routine clinical movement.

Unfiltered portable fans can move contaminated air toward corridors or occupied adjacent spaces.The enclosed two-stage intake path directs collected room air through the prefilter and HEPA cartridge before it reaches the exhaust fan.

A fixed fan setting may not match different room volumes, leakage rates or duct resistance.Variable-speed fan control allows the exhaust rate to be adjusted while the connected pressure display shows the resulting room differential.

Filter replacement can expose service personnel when doors, seals and airflow direction are poorly arranged.A dedicated gasketed filter door, compression latches and downstream fan layout keep the filter bank retained within a defined service compartment.

Temporary isolation equipment can consume floor space or become difficult to route to a window or exhaust point.The narrow upright cabinet, lockable casters and single top flexible duct connection support compact bedside-area placement and practical discharge routing.

Typical Applications

Temporary airborne infection isolation room conversionHospital surge-capacity containment zonesRespiratory treatment and assessment roomsClinical procedure spaces requiring controlled directional exhaust

Technical Parameters

Typical configurable construction values for a mobile two-stage negative-pressure isolation exhaust unit are listed below.

Core Material	Pleated ePM10-class prefilter and gasket-sealed H13 or H14 HEPA cartridge in a polyurethane-insulated galvanized-steel cabinet
Panel Thickness	30-50 mm double-skin insulated enclosure panels
Effective Width	700-900 mm nominal cabinet width
Maximum Length	Up to 1700 mm cabinet height excluding the flexible exhaust duct
Steel Facing Thickness	0.8-1.2 mm galvanized-steel inner and outer skins
Core Density	38-45 kg/m³ rigid polyurethane insulation
Thermal Conductivity	0.022-0.028 W/(m·K) for the rigid polyurethane insulation
Surface Finish	RAL 9010 powder-coated exterior, smooth light-gray interior and galvanized duct connection
Joint Type	Gasketed compression-latch service doors with clamped filter rails, sealed internal plenums and one circular top exhaust spigot
Customization	Available based on the intended application and operating environment.

Available Options

H13 or H14 final HEPA filter selectionTop duct spigot and flexible hose diameters matched to required airflowPowder-coated galvanized steel or AISI 304 stainless enclosureRemote alarm contact and pressure-monitor communication interface

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