Deployed EVAS unit

about Evas

EVAS product undeployed in case

Emergency Vision Assurance System (EVAS) provides a clear space of air through which a pilot can see flight instruments and out the front windshield for landing the plane in the event of in cockpit smoke.

When smoke evacuation procedures are not sufficient, EVAS® provides emergency backup allowing the pilot to see and fly the aircraft to a safe landing. Statistics from FAA Service Difficulty Reports clearly show that in-flight fires, smoke or fumes are some of the most significant causes of unscheduled or emergency landings and account for on average one precautionary landing per day.

Views of normal cockpit, smoke filled cockpit and a view with EVAS deployed
EVAS View - Clear view of flight path and instruments

A pilot encountering smoke in the cockpit so thick that the instruments cannot be seen can utilize a relatively simple device, which provides a clear view. Emergency Vision Assurance System (EVAS®) provides a clear space of air through which a pilot can see flight instruments and out the front windshield for landing. The pilot still relies on the oxygen mask for breathing, smoke goggles for eye protection and employs approved procedures for clearing smoke from the aircraft.

EVAS measures 3 x 8.5 x 10 inches when stowed, the approximate space of a Jeppessen navigation manual. When needed, the pilot removes the IVU (Inflatable Vision Unit) from the EVAS® case and pulls a tab to activate the system. The IVU inflates with one lobe above and one below the glareshield. According to VisionSafe Corporation, the distributor of EVAS®, the whole process takes 15-20 seconds. The pilot leans forward, placing his smoke goggles in contact with the EVAS® clear window, giving him an unimpaired view of both vital instruments and the outside world.

The device is independent of aircraft power, relying on a self-contained battery-power supply, pump and filters in each storage case. EVAS® systems are designed to run for at least two hours, and filter down to .01 microns. The system requires virtually no installation. While the FAA regulations require smoke detectors, fire extinguishers, smoke goggles and oxygen masks, pilots point out that these safeguards and all other systems and equipment for flight safety are useless if the pilots cannot see to control and land the aircraft.

VisionSafe Corporation uses a fleet of mobile cockpit demonstration units to show potential customers the benefits of the system. EVAS® demonstrations use a fog generator to reduce cockpit vision so the pilot cannot see his hand in front of his face. Smoke goggles offer no vision improvement, though they do protect the eyes. After EVAS® is deployed, the pilot can clearly see both the vital instruments and out through the windshield. It is truly an amazing experience.

Product Specs

Compact: 3" x 8.5" x 10"
(75mm x 215mm x 255mm)

Light weight: ~ 5.5Lbs (2.5KG)

15-20 second deployment time

Self-contained power supply

Easy to install

10 Year Warranty

  • Displaces all smoke in the vision path regardless of density
  • Provides clear vision of basic instruments and flight path
  • Allows for use of emergency checklists, navigation charts, etc
  • Recommended by the FAA and other aviation authorities

Why Evas

The EVAS® has one defining purpose:

Protect the pilot's vision to ensure a safe

landing during a smoke in the cockpit emergency.

Source of smoke has not been isolated?

Evacuation system can't keep up with the smoke being generated?

The Answer is EVAS®

Emergency Vision Assurance System

EVAS® is fully FAA tested and certified to ensure pilot vision in the presence of dense continuous smoke. With EVAS®, pilots are able to see the flight path and vital instruments as well as read approach plates and emergency procedures. The ability to perform these functions in an environment of continuous smoke will make a critical difference to safety.

In scores of simulator tests with EVAS®, pilots have landed safely with smoke in the cockpit so thick they could not see their hand in front of their face. Current aircraft design and certification criteria rely on smoke evacuation methods.

The test procedures for these methods measure the smoke clearing capacity against a "standard condition." That standard condition as defined in FAA Advisory Circular 25-9A states "to clear the cockpit of smoke after the pilot's view is obscured, without any further smoke being generated." What if the source of the smoke has not been isolated? Further, what if the evacuation system can't keep up with the smoke being generated?

The answer to these questions is EVAS®. It is the best way to ensure that the flight crew can maintain vision and safely control and land the aircraft when dense smoke in the cockpit cannot be stopped.

Talk with an EVAS specialist about getting EVAS for your plane or fleet.

+1 (800) 441-9230

or fill out our contact form


EVAS comes with a 10 year warranty

10 Year Warranty

EVAS® is covered by a comprehensive renewable/transferable 10 Year Warranty.
Download a PDF of the EVAS Warranty


EVAS Overview

360 Videos

Explore a 360 video of pilots deploying EVAS


More about EVAS

When you can't see you can't fly



It is important to maintain your EVAS® unit. Maintenance information can be found in Chapter 2 of the manual received with your unit. For STC models (107STC), the manual is VSC Document 8017, Instructions for Continued Airworthiness. Links to manuals can be found below in PDF format.

Required Service & Maintenance

The EVAS® warranty is void if systems are not serviced in accordance with required service periods.

- EVAS Service Policy & Price Sheet (PDF)

EVAS® systems require regular service every 24 months. The service due date is clearly marked on each EVAS® unit.

- 24 Month Service Form (PDF)

120 months from the original manufacture date, the EVAS® system is rebuilt to the current configuration. This serves to renew the warranty period for an additional 10 years, and includes replacement of key system components.

- 120 Month Service Form (PDF)

Special Inspection

A special inspection is required immediately after:
- The integrity of the EVAS® container has been compromised;
- Any test in which the "Battery Condition" status indicates "Inop" (red test light or no light);
- Any use or deployment of EVAS®;
- 13 or more months have passed from the Base Service Date on the EVAS®

Maintenance Manuals

- 107STC-XXX ICA Manual (PDF) - 107P Maintenance and User Instruction Manual (PDF)

Customer Checks

EVAS® operators are required to perform regular inspections, to assure their units are in proper working order.

Position and Location Check

The owner, operator or designee shall visually check EVAS® for general condition, security, and position in the cockpit.

Blower and Battery Check

The EVAS® system must be given a blower and battery check to ensure proper battery voltage and blower motor operation. The span between checks should not exceed 90 days.

If Used

If EVAS® is deployed in an emergency, please contact VSC Quality Assurance Department as soon as practical at 1-800-441-9230. Complete the Pilot Smoke Event Report.

- Pilot Smoke Event Report (PDF)