What Is AAMI Level 2 Isolation Gowns

What Is AAMI Level 2 Isolation Gowns
December 6, 2021

What's a hospital without medical devices? Here's a simple answer: Not a hospital.

Within the context of a solid healthcare system, medical devices are used to prevent, diagnose, and treat injury and disease. They may also assist patients in their rehabilitation. Now, when it comes to the specific types of medical devices used in a hospital, you might start thinking of feeding tubes, X-ray machines, and so on.

However, you might not think of surgical gowns as devices. The amount of technological development and research that creates surgical gowns is incomparable to any other tools used in medicine. Surgical gowns are a part of the protective apparel, and they are governed by a set of test methods and standards. These standards were created by AAMI – The Association for the Advancement of Medical Instrumentation. More specifically, ANSI – American National Standards Institute – is the standard that establishes a classification system for surgical gowns, starting from Level 1 to Level 4. One of the most prevalent and commonly used isolation gown levels is the AAMI level 2. To gain a deeper understanding of its purpose and uses, listed below is everything you need to know about the AAMI level 2 isolation gowns:   Let's begin with the AAMI Guidelines. Generally, the ANSI/AAMI PB70:2012 standard specifies the liquid barrier performance used in hospital settings, with ratings for various isolation gown levels. AAMI addresses liquid coverage in the critical zone, which is the area where an OR staff member is most likely to come into direct contact with infectious materials. In addition to this, the critical zones of the gowns cover a large portion of the surgical front. The fabric and the construction (the front tie attachment and sleeve seams) are both tested. Moreover, the gown's back may be unprotected.  

The AAMI Level 2 Isolation Gown

The AAMI Level 2 medical isolation gown is a lightweight full-back medical apparel designed for increased coverage and versatility. It has a series of attachments, such as waist ties, knit cuffs, and neckties. Furthermore, this AAMI gown may also be referred to as one of the many reusable isolation gowns used in hospitals. It is primarily used to avoid contact with numerous bodily fluids and infectious materials.

How is the AAMI Level 2 Isolation Gown Tested?

Surgical gowns, including the AAMI level 2, are subjected to a variety of standardized tests to ensure that they meet the values established by organizations, including:
  • BACTERIOPHAGE AND FLUID BARRIER (ASTM f1671):Using viral penetration at 2psi and ambient pressure, this test determines the resistance of substances used in protective clothing to bloodborne pathogens.
  • TEST FOR HYDROSTATIC PRESSURE (AATCC 127):Fluid resistance is tested by measuring the force required for water to penetrate a fabric (including the seams).
  • RESISTANCE TO IGNITION & LASER (ISO 11810):In the oxygen-rich climate of the OR, this device is used to measure the laser-induced flammability characteristics of the gown materials. Back and front panels, as well as sleeves, are included.
  • TEST FOR GELBO LINT:Determines the proportion of lint particles released by a fabric.
  • ABRASION TEST MARTINDALE (ASTM D4966):It is a visual examination of fabric abrasion resistance using a standard abrasive surface and a specified force to assess fabric authenticity and lint production.
  • CPSC FLAMMABILITY STANDARD FOR CLOTHING TEXTILES:The burn rate of the reusable isolation gowns is measured here.

What is the difference between the AAMI Level 1 & AAMI Level 2 Isolation Gowns?

The AAMI level 1 isolation gowns provide minimal protection and are typically used in general hospital settings. Also, when healthcare and medical workers are providing only primary care and do not require sterile gowns. These gowns offer a slight barrier against fluids, but they are not suitable for ICUS, pathology labs, or blood draws. Level 2 isolation gowns, on the other hand, are ideal for low-risk situations. They work best in ICUs, pathology jobs, or blood draws in controlled environments where sterile gowns are unnecessary. In conclusion, these gowns can block more fluid than the AAMI level 1 isolation gowns and are impactful against fluid penetration caused by soaking or splatter.  

How to put on the AAMI Level 2 Isolation Gown

  1. Thoroughly wash your hands or use hand sanitizer.
  2. Put on the Level 2 gown.
  3. Next, wrap your upper body from your neck to your arms and knees to the end of your wrists, then wrap at the rear.
  4. The gown should be large enough to allow for unrestricted movement while avoiding gaping.
  5. Tie at the back of the wrist and neck.

The AAMI level 2 isolation gown price

Since various manufacturers around the globe are providing AAMI gowns to hospitals, the pricing and material of construction may vary. However, the ideal AAMI level 2 isolation gown price ranges from $120 to $180.  


So there you have it, a thorough description of what is AAMI level 2 isolation gowns. These are ideal for low-risk situations that don't require sterile gowns, like the stuff that goes around in non-invasive labs or simply for when you have to draw blood from a patient's veins. Moreover, understanding and defining the critical zones and what each level entails is necessary to know which one is right and what circumstances. Lastly, we hope that the above-said information was enough to help you understand the AAMI level 2 isolation gowns.     

Recent Blogs