Frequently Asked Questions – Flight DefendMe Aerosol Evacuator

How often do I need to change the filters?



Durability Flow Value (Usage)

Primary Microfiber Filter




1-3 months


Display 010 or a multiple of it

Eg. 010/020/030.



Secondary Filter Assembly




3-6 months


Displays 050 or a multiple of it.



Main Filter Assembly




12 Months


Display 100 or a multiple of it

Eg. 100/200/300


Replace relevant filter according to the duration (months) or if the flow value has been reached. Or when the LED display shows a circle than the filter must be replaced.

The flow value is a three-digit value; the cumulative value is 001 when the fan rotates 5.76 million revolutions.



What type of UV Light is it?

It is a UV-C Light. UVC has been shown to be effective at killing or inactivating microorganisms by destroying nucleic acids and disrupting their DNA, leaving them unable to perform vital cellular functions.

Ultraviolet lamp intensity: 2260uW/cm3,

Wavelength: 265-285nm

Can the Flight HEPA filter remove the Novel Coronavirus?

Common standards require that a HEPA air filter must remove—from the air that passes through—at least 99.95% (European Standard) or 99.97% (ASME) of particles whose diameter is equal to 0.3 μm; with the filtration efficiency increasing for particle diameters both less than and greater than 0.3 μm. A HEPA filter is a type of high efficiency particulate air filter. This type of air filter can remove at least 99.97% of airborne particles 0.3 micrometres in diameter. Particles of this size are the most difficult to filter and thus the most penetrating particle size. Particles that are larger or smaller are filtered with even higher efficiency.

Therefore, HEPA Filters can definitely filter out the Coronavirus which are approximately 0.125 μm in size at close to 100% efficiency. The general misconception is that HEPA Filters work like a net or a sieve and block out particles of certain sizes. However that is incorrect. HEPA filters are designed to target particles much smaller than 0.1microns as these particles adhere to the fibers by diffusion at almost a 100% rate.

Can you use the DefendMe as an Air Purifier?

It is not designed as one but theoretically it should be able to do the same thing. Our CFM is 125 CFM or it is able to Exchange the air in a room 6 times an hour (Rating based on a 12 x 12 Ft Room).

What is the CFM?

One of the most important specifications that determine the suctioning ability of the system is the airflow measured in CFM (Cubic Feet per Minute). The air flow will take into account the suction strength, the motor input power and the design of the unit. Therefore, the input power, typically measured in watts, or the suction strength, measured in Pascals (PA) will not be a good indication about the airflow of the suction unit by itself. However, when you look at the CFM specification of the unit, this value will provide a better indication of the suctioning ability of the unit as it takes all these factors into account.

The Flight DefendMe has an airflow of 125CFM.

What is the suction Power?


What is the Wattage?

The Flight DefendMe is rated at 250W, which is the input power of the motor. The wattage refers to the power of the motor and not the performance of the machine, the higher power consumption does not mean better. Therefore, although our input power of our motor is lower than our competitors our airflow is higher.

How long is the pipe?

It is a 5 ft flexible pipe that can be positioned easily.

Are there different Lengths?

Not at this moment.

How big is the nozzle?

The nozzle is 11” Diameter. A wider nozzle design helps to capture more aerosols. We also offer a smaller rectangular nozzle.

What is the size of the machine?

16 x 9 x 18” (L x W x H)

What are the Shipping Dimensions?

21 x 18 x23 Inch (L x W xH)

What is the shipping weight?


Does the unit have wheels?

The unit has 2 wheels and two stationary legs.

What is the warranty?

3 year Warranty

How loud is the DefendMe?

The DefendMe is rated at 62DB; this is at max speed (10). The noise level can be reduced by turning down the speed.