Exhaust Handling Unit

Convertable Negative Pressure Unit

ETL Certified

Negative pressure isolation ward is defined as a ward with a pressure difference between the inside and outside of the ward. The pressure inside of the ward is lower than the outside pressure, therefore air inside the ward cannot escape to the outside. This design helps to prevent the contaminated air in the ward from escaping to the outside. 

When an indoor exhaust handling unit (EHU) is applied in a ward without exhaust system, part of the indoor contaminated air can be recirculated and absorbed to the purification unit, while part of the indoor contaminated air can be exhausted after purification to maintain the ward in a negative pressure condition. The indoor exhaust purification unit uses primary and HEPA filter to capture the dust particles carrying viruses and microbes.


  • Negative pressure applications

  • Multiple operating modes: indoor air recirculation and exhaust

Performance and Parameters

This unit combines 2 separate filters with variable fan speeds to meet the needs of various industries such as medical and clean room applications.

  • Aluminum frame with nylon mesh

  • Washable and reusable

  • Large particles (10μm and larger), fibers, and fur are caught increasing the effectiveness of the HEPA filter, and extending its life

Antimicrobial HEPA Filter
  • Antimicrobial coating on the surface of HEPA filter prevents buildup and reproduction

  • Highly effective against E. Coli, Staphyloccoccus aureus, Candida albicans, Klebsiella pneumoniae, MRSA, Pseudomonas aeruginosa, Aspergillus niger, and other common viruses

  • Slow release technology maintains long term sterilization properties

Operation Conditions and Replacement

This unit is designed to operate at temperatures between 10ºC-45ºC and less than 90% relative humidity.

Applicable Industries

Based on this unit's performance and properties, it is best used applications related to the following industries:


Medical & Dental

Hospitals, Medical Labs/Clinics, Surgery Centres, Dental Offices, etc.

Senior Housing

Retirement Home, Long Term Care etc.

Multi Units Residential

Multiple-Units Residential: Apartments, Condos, etc.

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