FAQs

Bluezone pulls air through the intake side and into the reaction chamber where it eliminates contaminants, and then exhausts purified, clean air back to your indoor space. Airborne contaminants such as virus, bacteria and mold are killed via exposure to the self‐contained germicidal UV‐C light. The circulation and cleaning of air through the unit provides continuous inactivation of microbial load in the space and associated reduction in risk of its transmission.

Yes. The Viral Kill Model 450 uses UV‐C light to kill microbes and a catalyst to reduce odors and other gaseous contaminants. There is no ozone in the Viral Kill products.

The Fresh Preservation products, Model 2400 and the Model 300, use UV bulbs that generate two different types of UV light: germicidal to inactivate microbes i.e. kill virus and ozone generating to eliminate ethylene and other gases. A catalyst removes all the ozone before exhausting clean air back into the storage facility. Both units are CARB certified for ozone emissions. Removal of ethylene with the self‐contained ozone is critical to extend the shelf life of fruits and vegetables. The ozone also helps eliminate odors via an oxidation process.

No, unlike plasma generators, ozone generators, ROC generators, or ion generators, the Bluezone does not INJECT harmful contaminants into the space. In fact, the catalyst in all Bluezone models REMOVES harmful ozone from the ambient air.

Bluezone cleans the air of viral aerosols that remain in the air after someone who is infected with the virus breathes, speaks, coughs or sneezes in the room.

Tests conducted by third party virus test lab demonstrated that Bluezone eliminated 99.9995% of the virus broadly used as the surrogate for the SARS‐Cov‐2 coronavirus.

Microbes and virus contain molecules called DNA or RNA that are broken down by the UV light. After exposure in the Bluezone, these microbes and virus are totally inactivated, meaning they cannot reproduce. They become inert and cannot cause harm. The use of UV light to stop the spread of viruses, bacteria or molds is well established by science and is recommended by public health experts.

UV‐C light for microbial decontamination is both scientifically proven and CDC and FDA recommended. UV‐C light is a tried‐and‐true technology for virus mitigation as well as mold and bacteria elimination. Other technologies such as ionizers, hydrogen peroxide generators, hydroxyl radical generators and ROS generators on the market have yet to be proven in a real world application. Electronic air cleaners, including Reactive Oxygen Species (ROS) generators,
have not been shown to be effective at treating airborne contaminants in typical indoor settings. Products that employ ionization technologies, termed ionizers can be used to augment mechanical filtration and as stand‐alone air cleaning devices. In brief, the available evidence for effectiveness of ionization in actual occupied spaces is sparse and generally weak.

For a complete competitive analysis please see the Bluezone Model 450 Competitive Analysis. For a technical deep dive into ionizers and reactive oxygen devices (hydroxyl radical air purifiers) please see EH&E’s “Summary of Air Cleaning by Ionization for SARS‐CoV‐2 Control” and “Summary of Air Cleaning by Reactive Oxygen Species for SARS‐CoV‐2 Control.”

UVC or ‘germicidal’ lamps have been used for decades in healthcare and other settings to kill bacteria (e.g. tuberculosis), or viruses in air (inside light‐tight air ducts), and for sterilization of drinking water. UVC radiation has been shown to inactivate the SARS‐Coronavirus. Bluezone Model 450 has been tested at a third‐party virus testing lab using FDA good laboratory practices: Bluezone eliminated 99.9995% of the virus broadly used as the surrogate for the SARS‐CoV‐2 coronavirus.

Bluezone Products, Inc. the company that developed and manufactures the Model 450 has had extensive studies conducted by engineering and public health companies to define the right number of Bluezones needed to reduce risk in various indoor settings. Following the guidelines provided for the number of units needed in restaurants is expected to provide a level of risk reduction that is the same as having customers wear cloth masks.

When the display is green, the Bluezone is operating correctly.

Yes, Bluezone requires an annual bulb replacement after 8,800 hours of operation. The display screen confirms duration of bulb operation. At two months before the necessary bulb changeout point, 1,600 hours of operation remaining, the green display screen changes to yellow and displays “Order new bulbs”. The display screen turns red and shuts down at hours of operation remaining. When new bulbs are installed and the bulb reset counter is pressed, the counter is reset to 8,800 and the green display returns.

For the complete bulb installation procedure please refer to the Bluezone Operation and Installation Manual.

Yes, the bulb change takes ~20 minutes total. For complete installation guidelines please refer to the Bluezone Operation and Installation Manual.

No. Bluezone products use proprietary UV bulbs and ozone bulbs. All bulbs must be purchased directly from Middleby, Bluezone Products Inc. or an authorized reseller.

No. The only maintenance necessary is a yearly bulb swap. If the blue grease guard becomes dirty it can be vacuumed clean.

Power draw is ~310 watts for the Model 450, ~250 Watts for the Model 2400 and ~170 Watts for the Model 300.

Model 450 units are currently going through UL certification for 120 VAC and CE marked for use outside the US at 240 VAC. Units that require 240 VAC need to be requested upon order. Model 2400 and Model 300 units are UL certified to 120 VAC. Both units will be CE marked for use outside the US at 240 VAC.

IEC 320‐C13 120 VAC power cord. 6’ cord is shipped with every Bluezone.