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OdorStop OS721 - 72 Watt UV Air Purifier with 16" Bulbs

4.4 out of 5 stars 57 ratings

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  • 🛑 2-16", 36 Watt UVC, 254NM Bulbs, 120 Volt, 6 Foot Power Cord
  • 🛑 LED Indicator Lights Verify Proper Operation
  • 🛑 Installs in Minutes, Step-by-step Instructions with Pictures
  • 🛑 OS7212 - OdorStop 72 Watt UV Air Purifier with 12" UV Bulbs are available for installation in ducts with less than 16" of depth, EPA Est. No. 94721-CHN-1
  • 🛑 Buyers Beware: The effectiveness of a UV air purifier is based on the wattage and length of the UV bulbs. The higher the wattage, the more effective the unit will be at purifying the air.
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Product description

The OS72 UV air purifier is a completely sealed unit and has 2 LED lights which verify that the unit and bulbs are operating properly. It is easy to install and comes with step by step directions with pictures, a cut-out template, mounting screws and foam tape already attached. Simply cut out the template, drill holes, insert unit, plug in and begin enjoying fresh, clean air.

Product Specifications High Quality Aluminum Body 2-16”, 36 Watt UVC, 254NM Bulbs Voltage: 120V On/Off switch LED Indicator Lights Verify Proper Operation 6 Foot Power Cord Dimensions: 10”H x 6.5”W x 2”D Weight: 3 Lbs Easy Installation and Bulb Replacement 2 Year Limited Warranty Treats areas up to 10,000 Sq. Ft. Tools Required For Installation Drill 1/4” Nut Driver 3/32” Drill Bit 2 ½” Metal Cutting Hole Saw. OS7212 - OdorStop 72 Watt UV Air Purifier with 12" UV Bulbs are available for installation in ducts with less than 16" of depth.

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4.4 out of 5 stars
4.4 out of 5
57 global ratings

Top reviews from the United States

Reviewed in the United States on November 2, 2020
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4.0 out of 5 stars Whole house UV air purification system - a must have these days! - UPDATED!
By B. Clark on November 2, 2020
While searching Amazon for another item, I happen across this, which looked like something we should have in our home.

The pros:
+ Reasonable priced at $189.99 - $22.32 (gift card) = $167.67 with free Amazon shipping!
+ Since our house is under 5000 square feet, we only need run one UV bulb, which saves energy + gives us a spare... replacement UV bulb!
+ Advertised - treats areas up to 10,000 square feet.
+ Advertised - two 16", 36 Watt UVC, 254NM bulbs, 120 Volt, 6 foot power cord.
+ Advertised - LED indicator lights verify proper operation. ◄ more on this below.
+ Advertised - installs in minutes, step-by-step instructions with pictures.
+ Advertised - OS7212 - OdorStop 72 Watt UV air purifier. 12" UV bulbs are available for installation in ducts with less than 16" of depth.
+ Advertised - 2 year limited warranty.

The cons:
- The required 2-1/2" hole saw is not included. I bought this one, which worked perfectly!: [[ASIN:B07YY64WW7 LANIAKEA 2-1/2 Inch Bi-Metal Hole Saw 64MM M42 Annular Hole Cutter HSS Variable Tooth Pitch Holesaw Set with Arbor Blue for Home DIYer]]
- The UV bulb life is 13,000 hours. 8760 hours (1 year) + 4380 hours (1/2 year) = 13,140 hours. The UV bulb has a life just a touch less than 1-1/2 years... assuming you operate these constantly, always on as we do.
- The instructions recommends replacing the UV bulb every year, which is expensive at $35.99 each!
- The LED indicator lights are overly bright, VERY bright, lights up a good portion of our garage!
- In the manual, on page 6, there is an error or there was an assembly error on the unit I received? The LED nearest to the power switch is for the UV bulb nearest to the power switch, not as noted in the troubleshooting instructions.
- Made in China ◄ For those that prefer to buy products made in the USA.

X-10 home automation system comments:
▪ This device has a dual electronic ballast which lacks a line noise filter, so it generates & injects a substantial amount of noise onto the AC power line! If you have an X-10 home automation system, the AC line noise will be a problem.
▪ The baseline AC line noise was 60 mV... less is better. With one UV bulb operating, turned on, the AC line noise jumped up to 175 mV of noise. With both UV bulbs operating, the measured AC line noise read 310 mV of noise on the AC power line! ◄ Pictures are attached, but they got out of order when uploaded for this review.
▪ On the positive side, though expensive, adding an X-10 AF100 plug in noise filter module prevents any of the nose from the electronic ballast from entering the AC power lines!

Closing remarks:
▪ The installation wasn't overly difficult, with the hole sawing being a slight challenge, as it was the first time I used a hole saw to cut metal. ◄ The unit allow little placement error, so position the template carefully so the holes are correctly placed!
▪ When I did a functional test, before the installation, there was a slight ozone smell emitted from the UV bulbs. No noticeable ozone smell, once the UV system was installed.
▪ Again, I'm not liking the super bright indicator LED. I may opt to modify those to dim the light output.
▪ If this UV air purification system continues to operate with no issues, I'll be back to increase my product rating.

Updates:
► December 21, 2020
▪ The UV unit has been working flawlessly! We noticed the cooking odors, like baking pies, seem to dissipate quickly!
► June 14, 2021
▪ The UV light has been & is still operating perfectly with no issues to report.
▪ I did decide to address the overly bright UV light(s) on LED(s), as this has been bugging me since the unit was installed! I decided not to tamper with the wiring, as I wasn't entirely sure the LED(s) were just an indicator light. They could be part of the UV light electronic ballast circuitry? I opted to place a "diffuser" over the LED, which made the overly bright LED light more tolerable. I attached a picture of the added LED(s) diffuser. I should note that only one indicator LED is normally lit. For our house square footage, only one UV light is required, so the other UV light is a spare & not installed.
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Reviewed in the United States on September 30, 2020
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Reviewed in the United States on February 11, 2021
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Reviewed in the United States on December 30, 2020
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