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New! OmniAire Negative Air Machine • HEPA Filter • 99.97% • Wood Frame • #OA2500PLUS-A

New! OmniAire Negative Air Machine • HEPA Filter • 99.97% • Wood Frame • #OA2500PLUS-A


Regular price $1,545.00 USD
Regular price Sale price $1,545.00 USD
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The Most Powerful Negative Air Machine in its Size Class!

The industry standard for negative air machines, OmniAire sets the bar high with this compact and powerful unit. The OA2500 Plus-A comes equipped with an audible alarm to notify operators that the HEPA filter is full. This machine excels in a wide range of environments, from construction projects to mold, asbestos, and lead abatement. 

With 2-speed options of 1800 and 2200 TrueCFM™, the OA2500 Plus-A offers the flexibility needed for a wide range of applications. Unmatched CFM capacity for portable air purifiers. The HEPA filter, measuring 12 inches in depth and achieving a 99.97% efficiency at 0.3 microns, ensures superior filtration. For added convenience, this Plus model has an audible alarm to monitor HEPA filter status.

The OA2500 Plus-A has a lightweight yet durable aircraft-grade aluminum housing that ensures mobility and easy cleaning while delivering long-lasting performance. With meticulous silicone sealing of critical seams, this machine protects against contaminated air bypassing the HEPA filter.


OA2500 Plus-A:

  • 1800 & 2200 TrueCFM™
  • 2-Speed
  • HEPA 12” Wood Frame
  • 99.97% efficiency @ 0.3u
  • Audible Alarm - HEPA Filter Status
  • 24”x24” Pleated MERV-8, 1” thick
  • 70 – 74 dB noise level
  • Negative Pressure Ready
  • 115 VAC / 60 Hz / 12A w/CB
  • 36”W x 28”H x 31”L
  • 114 pounds/52kg
  • Aircraft Grade Aluminum
  • HEPA Filter Change Indicator
  • Run Meter

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  • Key Features

    OmniAire 2500 Plus - 1800 and 2200 TrueCFM™

    Central to the OA2500 Plus versatility is its 12” deep True HEPA filter, boasting an exceptional efficiency rate of 99.97% at 0.3 microns.

    Beyond offering the most CFM in its class, these machines are very versatile. They create controlled air pressure environments, whether you need positive or negative containment, and serve as an air scrubber in recirculation mode. This makes them indispensable for various critical applications, such as mold, asbestos, and lead abatement projects, silica control at construction sites, mold containment during water or fire damage remediation, and safeguarding healthcare workers and patients in medical facilities.

    Thanks to alternative pre-filters like poly pads, framed pleated filters, activated carbon filters, and specialized Bag Filters designed to handle substantial volumes of construction dust, adapting the OA2500 for various applications is a straightforward process.

    This model provides a run (hours) meter to manage maintenance intervals, holds UL/CSA Safety Certification, and features a thermal protection overload monitor, guaranteeing 24/7/365 safe operation.

    OmniAire machines with a TrueCFM™ air flow specification have undergone a rigorous and precise method for CFM measurements that is transparent and repeatable by any qualified third party.

    TrueCFM™ specifications are established using a new (unloaded), factory-certified HEPA filter, installed in the applicable OmniAire machine. For details contact us at