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SAS Germ Killer™ UVC Commercial UV Air Purifier GK-UVC400

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    SAS Germ Killer™ UVC Commercial UV Air Purifier GK-UVC400

    SKU: gk-uvc400

    Vendor: SAS
    Part Number: sas-gk-uvc400

    Product Documents

    SAS Germ Killer™ UVC Commercial UV Air Purifier GK-UVC400

    Commercial UV Air Purifiers utilize UV-C light technology to improve indoor air quality and provide protection against germs, bacteria and viruses. These powerful air purification systems use UV-C light to deactivate microorganisms by damaging their DNA and/or RNA (Ref. 1) in order to stop reproduction and help reduce disease transmission.

    What is a Commercial UV Air Purifier?

    A Commercial UV Air Purifier uses a powerful airflow and UV-C light to help reduce disease transmission through a process called germicidal irradiation. Germicidal irradiation reduces the reproduction of microorganisms by damaging the DNA/RNA. These systems do not use traditional HEPA filters but instead have pre-filters to catch large particles and purify the air with UV light.

    Recommended applications for a Commercial UV Air Purifier

    • Schools
    • Hospitals
    • Medical Clinics
    • Nursing Homes
    • Day Cares
    • Office Spaces
    • Virus Testing Centers
    • Dental Offices
    • Highly Populated Indoor Areas

    Features & Benefits of Germ Killer Commercial UV Air Purifier

    The Germ Killer UV Air Purifier offers an enhanced design with improved safety and efficiency features. This system was stringently tested both in the Sentry Air Systems’ factory and by a 3rd party lab to ensure UV-C and ozone safety.

    General Features

    • Adjustable airflow control: 300, 375, or 450 CFM
    • Two high-intensity UV-C light bulbs
    • Uses UV-C light with shorter wavelengths to improve penetration of microorganisms
    • Patent-pending design

    Safety Features

    • Leakproof UV-C light cabinet with light leak reduction design features (refer to brochure for more information)
    • 3rd party tested for UV-C and ozone readings
    • A safety interlock prevents the unit from working if the lid or filters are not in place

    Efficiency Features

    • Dual inlets feature electrostatic cleanable pre-filters to remove large particles reducing particle build-up on the bulbs and reflective surfaces to help prevent a reduction in effectiveness.
    • Reflective surfaces in the disinfection area increase irradiance of the UV-C light and improve efficacy.
    • A UV light sensor and LED lights indicate if the unit is supplying sufficient UV-C light to improve efficiency and reduce particle build-up on the light bulbs.

    What is UV Light?

    UV light is a type of electromagnetic radiation that falls between visible light and x-rays on the electromagnetic spectrum (Ref. 2). The sun emits UV light making up about 10% of the sun’s light — 95% UV-A and 5% UV-B light (Ref. 2). UV-C light, the 3rd type of UV light, is blocked from the earth’s surface by the ozone layer and water vapor in the earth’s atmosphere (Ref. 2).

    UV Light ABC's


    UV-A light makes up 95% of the UV rays emitted from the sun. Tanning beds use UV-A light leading to the development of wrinkles and premature skin aging (Ref. 3). UV-A light can also be called near UV with a wavelength between 315 and 400 nanometers (nm) (Ref. 2).


    UV light emitted from the sun contains about 5% UV-B light (Ref. 3). UV-B light can cause sunburns by penetrating the top layer of the skin, and damaging DNA leading to the development of skin cancer (Ref. 3). UV-B light is also referred to as middle UV with wavelengths between 280 – 315 nm (Ref. 2).


    UV-C differs from other UV light in that it only exists on earth artificially because the ozone completely blocks all of the natural UV-C light from reaching the earth’s surface (Ref. 3). UV-C light has a proven germicidal wavelength of 253.7 nm shown to deactivate influenza, H5N1, SARS, MERS-CoV, and the coronavirus (Ref. 4). UV-C light impairs living organisms through ionization (Ref. 1). The electrons break away from the atoms causing chemical bonds to break injuring the cell’s DNA or RNA. In viruses, this stops the cells from reproducing rendering the virus inactive. In addition to viruses, UV-C light can be used to deactivate mold spores and bacteria (Ref. 5).

    Far-UVC Light

    Recent research has explored Far-UVC light as an inexpensive way to reduce disease transmission in public places (Ref. 6). Far-UVC light has a wavelength of 207 or 222 nm with a very limited penetration depth (a few micrometers). Because of this, far-UVC light does not penetrate human skin or eyes offering a safer UV light for disinfection. Studies have shown that with low doses of 222 nm far-UVC light, H1N1, and other human coronaviruses are rendered inactive after exposure – 90% after 8 minutes and 99.9% after 25 minutes (Ref. 6).

    Does UV Light Purify Air?

    Yes, UV-C light can purify air — BUT UV-C light must be used accurately to be effective at inactivating microorganisms. Accurate use includes administering the right kind of UV light, the correct dosage, and UV lamps quality control (Ref. 1). Home or consumer portable air cleaners with UV light lack quality control processes and high intensity UV bulbs leading to a lower than the marketed effectiveness. This inefficiency poses a problem because behavior changes dramatically with a “disinfected” object and could lead to an increase in disease transmission (Ref. 3).

    A 2020 study conducted by Boston University and Signify Research found that UV light with an irradiance of 0.849 mW/cm2 partially inactivated the coronavirus after 0.8 seconds and reduced it to below detectable levels after 9 seconds for dried and 4 seconds for wet samples (Ref. 8). The Germ Killer uses a UV light that produces an irradiance of 8.0 mW/cm2 or 10 times stronger. This could mean if conditions matched the study, the dry samples could reach below detectable levels in 1/10 of the time or 0.9 seconds, and wet samples after 0.4 seconds. These figures are strictly theoretical and not guaranteed. Please see our brochure for other calculations on effectiveness of the Germ Killer against popular microorganisms.

    At the same time, UV light cannot rid air of other contaminants such as dirt, pollen, pet dander, other allergens, and odors. Air purification systems must utilize a mechanical filter such as HEPA filters for capturing airborne particulate and activated carbon filters for odor and chemical fume control (Ref. 9).


    Base Unit Dimensions:
    - 53”L x 17” W x 12.5” H

    Cabinet Material:
    - Stainless Steel

    88.5 lbs.

    Air Volume:
    High: 450 CFM
    Medium: 375 CFM
    Low: 300 CFM

    115/1/60, 2.2 amps
    NEMA 5-15P plug

    Sound Level:
    High: Approximately 56.3 dba
    Low: Approximately 48.8 dba

    Washable polypropylene pre-filter

    Limited one-year warranty from date of shipment on defects due to materials or workmanship. No warranty on bulbs.

    All returns must be authorized by Spectra Services in order to insure proper credit and must be requested within 30 days of purchase. All returns are subject to a minimum 15% restocking charge. For returns not due to error on behalf of Spectra Services, the customer is responsible for all transportation fees related to the returned product. To ensure proper credit, each product return must include the following information:

    • Customer name and address
    • Purchase order number
    • Spectra Services shipping order number
    • Date of invoice
    • Item number of returned item(s)
    • Spectra Services return authorization number (RMA)
    • Reason for return

    Non-Returnable Goods
    Unfortunately, Spectra Services is unable to accept the following returns at this time:

    • Products not in completely resalable condition (including products with damaged, missing, or defaced labeling or packaging
    • Chemicals, reagents, diagnostics, sterile, or any controlled products (unless products do not meet specification
    • Laboratory apparatus or instruments that have been used or are without the original packaging, labeling and operating manuals
    • Refrigerated products or other perishables
    • Products which are not inventoried by Spectra Services and are not able to be returned to the manufacturer
    • Products purchased on a special order
    • Products not purchased from Spectra Services
    • Products with an expired shelf life or an expiration date too short for resale
    • Discontinued products

    Spectra Services reserves the right to review this policy on a case-by-case basis.

    Pre-Owned Products

    Upon receipt of the pre-owned product(s), the customer has one week to evaluate the product to ensure it meets their expectations. If for some reason the customer decides to return the product, they may do so at any point during those seven (7) days for a full refund. No restocking fee will be assessed, however, the customer is responsible for the return shipping costs. Full credit will be issued upon receipt and inspection of the item(s) to ensure equipment was returned in the same condition it was initially shipped out in.

    Important Information

    All exchanges and returns require the completion of a Return Merchandise Authorization (RMA) form. Once completed, please return the merchandise immediately as the RMA number is only active for ten (10) days from the date of issuance.

    Charges associated with returning items are the responsibility of the customer unless the item(s) arrived defective, damaged, or incorrect.

    Spectra Services highly recommends that return packages be insured for full value and packaged securely to prevent shipping damage.

    We're Here To Help

    Your satisfaction is important to us! Use this form Contact Us to email us your questions about products, online orders, store experiences and more.

    Order Questions:

    If you need help or have any other questions concerning your orders, please click on the "Contact us" form above or call: 800-955-7732.

    Our Address:
    Spectra Services, Inc.
    249 David Parkway
    Ontario, NY 14519 US
    Phone: 800-955-7732
    I'm having a hard time searching for a product.

    That's no problem. We're more than happy to assist you in your search. Give us a call, or drop us a line and let us know what you're looking for as best you can. We're always adding partner brands, and it's difficult to keep up with the thousands of products that get added to our lineup. Our sales specialists know our lineup best, and are most willing to help you find the solution(s) you need!

    Why can't I complete my order online?

    You most likely have one or more items in your shopping cart that are not priced. If you find that you can't complete an order, contact us via phone or email for further assistance.

    What types of payments do you accept?

    That's an easy one. We're very flexible when it comes to payment. Not only do we accept most major credit cards (Visa, Master Card, Discover, American Express), we also offer you the flexibility of paying by check, money order, wire transfers, and purchase orders. Work with any one of our sales specialists to figure out which method is best for you!

    Do you charge sales tax?

    Currently, we are authorized to collect sales tax in California, Connecticut, Florida, Indiana, Massachusetts, New Jersey, New York, Ohio, Pennsylvania, Texas and Washington. If we ship to any of these states, we are obligated to charge sales tax unless you provide us with a tax exempt certificate. You can either fax a copy of the certificate to our New York office (585.265.4374) or email it to ([email protected]).

    Do you offer special pricing for government and educational entities?

    Absolutely! Contact any one of our sales specialists to work out the details!

    I just placed an order. Can I modify/cancel it?

    We pride ourselves on providing you with a responsive and efficient buying experience. We are able to address your concerns in an accurate and timely fashion, and can usually ship your order within 24 hours of order placement. If you contact us within that window, we'll do our absolute best to accommodate your needs and concerns prior to shipment.

    Do you accept international orders?

    Of course! While we require a bank wire prior to shipment of the product on international orders, we assure you that the process is just as smooth for domestic orders. Take a look at our International Shipping Policy and contact us if we can assist.

    Will I be charged for shipping?

    Shipping charges will be added to your invoice unless you provide us with your UPS, DHL, or FedEx account number. For a more detailed insight into our shipping process, see our shipping information page.

    I received a damaged shipment. What can I do?

    Accidental damage during shipment can sometimes happen. When you take delivery of your freight, please inspect thoroughly for any visible damage to the outside of the shipping container before signing for it. If there are multiple pieces to the shipment, please account for all them. Should you find that any of the products are damaged or missing after receipt, contact us within three days to address the matter.

    I'd like to make a return. How do I do that?

    Take a look at our Return Policy, and then contact us to continue with the process. Let us know if you have any questions.

    Can you guarantee pricing and availability?

    While we attempt to list and provide you the most up-to-date pricing, we reserve the right to make changes. Additionally, we cannot guarantee that we will always have a product in stock, but we do our best to accommodate your needs. If you have questions regarding pricing or availability, please do not hesitate to ask.

    Can you explain where you come up with the 'List Price,' please?

    Our "List Price" represents the full retail price as suggested by the supplier or manufacturer, the price estimated based on comparable items offered elsewhere in the marketplace, a former price the item was offered for by Spectra Services, or the price estimated in accordance with industry standards. Please note that we do our best to provide accurate list prices, and that it may vary by geographic location.