otex air purifier review
I can say unequivocally that these the on the web, especially after entering the phrase into search engines and surfing the competition. Many other reviews cite incorrect data, may apply furnace filter specifications to room machines, misinterpret technical specs, and generally mislead readers, often with an agenda. Of course there are many fine, technically qualified reviewers working in the industry. They know who they are, and I challenge these leaders to join me in raising the bar. Products not grouped under a brand name are listed in the order I reviewed them, not by score. I am gradually overhauling the site to consist of a single page for each brand, listing all current products and detail on the manufacturer, instead of a page for each model. These links are in a larger font size, with the titles "Brand Reviews" (Winix Reviews...). IQ Air Purifier HealthPro Plus Comprehensive Review: "best" BlueAir 403 HepaSilent Purifier Review
Blueair 203 Air Purifier Review Austin Air Cleaner: Healthmate Jr Company overview and model reviews: Sharp Plasmacluster Air Purifier Reviews Rabbit Air BIOGS 2.0 SPA-550A and SPA-625A Air Purifiers Review Rabbit Air MinusA2 SPA-780A Winix Reviews newer Winix page, manufacturer profile, all products. Whirlpool Reviews newer Whirlpool page, manufacturer profile, all products. Honeywell Reviews newer Honeywell page, manufacturer profile, all products. Alen T500 Air Purifier Review Alen Breathesmart Air Purifier Review Friedrich AP260 Air Purifier Review Holmes Reviews - all models Oreck DUALMAX Air Purifier Review GermGuardian 3 in 1 AC4825 and AC5000 Air Purifiers Review Airocide APS 200 Air Purifier Review Coway AP-1512HH "Mighty Air" Air Purifier Review Five Star FS8088 Air Purifier Review Germ Guardian GG-1000 UV-C Air Sanitizer Review Surround Air XJ-3800 Intelli-Pro Air Purifier Review
Bed Bugs – How To Rid Them From Your HomeAllergy Topics, Articles, Bedding | Copyright © 2016 Allergy Consumer Review.Ozone treatment & ozone gas hazards home page: This article explains the hazards associated with use of ozone gas indoors as a "mold remedy" or as an "air purifier" or as a "mold killing agent". While there are established uses of ozone in industrial applications and in certain sterilization applications, environmental testing experts and authorities such as the US EPA do not recommend use of ozone for mold treatment. Use of ozone indoors can be hazardous and can cause oxidation or other adverse reactions with other materials and chemicals indoors.© , All Rights Reserved. Ozone is widely promoted by ozone generating equipment companies and cleaning services for use in indoor building environments to deodorize, disinfect, "kill" mold, and for "general health". And while the evidence is that ozone as a mold "treatment" is questionable and while sometimes ozone "mold killing or deodorizing by ozone" causes more problems than it "solves", there are indeed many other appropriate and effective uses of ozone.
Indeed dissolved ozone is used in some laundry systems as a disinfectant, typically at levels of 1.5 to 3.0 ppm. See OZONE AIR PURIFIER WARNINGS That said, This article describes the dangers of using ozone gas indoors or in vehicles or other enclosed spaces as a deodorant or as a mold treatment. Other articles in this series give details about ozone gas exposure limits & standards, ozone air purifier warnings, use of ozone as a mold or mold odor treatment, how to test for ozone, ozone toxicity, and authoritative references on the use of ozone in various deodorizing, sterilization and purification applications. At least some people can smell levels of ozone down to 0.05 ppm. This odor-detection level is already half-way to the recommended limit. If you are generating ozone indoors, even at "low" levels a problem may be present. desensitized to odors in a short time, perhaps 20 minutes. So if you do not smell it, the ozone level could still be hazardous.
Problems associated with ozone gas exposure include Continue reading at OZONE AIR PURIFIER WARNINGS or select a topic from the More Reading links shown below. - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice. OR use the Search Box found below at Ask a Question or Search InspectApedia Click to Show or Hide FAQs Use the "Click to Show or Hide FAQs" link just above to see recently-posted questions, comments, replies, try the search box just below, or if you prefer, post a question or comment in the Comments box below and we will respond promptly. Publisher's Google+ Page by Daniel Friedman Click to Show or Hide Citations & References & See Fewer AdvertisementsFrom Google's Contributor website: Contribute a few dollars each month. The money you contribute helps fund the sites you visit.Over the last twenty years I have witnessed Ozone laundry companies come and go. I have witnessed outlandish claims from some of these companies, and quite frankly am tired of listening to the outright lies and fallacies that some of these companies are stating.
I would like to look at some of the facts and hope to help our readers make an educated decision about ozone laundry. This month, let’s look at the two major design differences. Some ozone laundry companies have taken the path of the “fine bubble diffuser” to inject ozone into the wash water, while other have chosen the Direct Venturi Injection as their means of transferring the ozone gas into the water. There are claims by manufacturers of advantages to both, so we should look at the design criteria of each and pick what is best for your application. Ozone gas is dissolved into water by utilizing pressure. It does not take a lot of pressure to start dissolving ozone into water. In the industry we call the ability to dissolve gas into water “Mass Transfer.” The efficiency of Mass Transfer of either style of injection device is highly dependant upon the design criteria of the device. The idea of the fine bubble diffusion injection method used on washing machines is borrowed from the bottled water industry.
In bottled water plants, ozone in introduced into a large column (or tank) of water. These are usually in excess of 15 feet tall. Water flows in to the top of the tank and exits the tank through the bottom. The fine bubble diffuser is placed in the bottom of the tank. Ozone is introduced thru that diffuser in the bottom of the tank. Water in introduced in to the top of the tank and flows downward, where it exits out the bottom of the tank. As the ozone bubbles rise, they are violently thrashed around due to the counter flow if the water flowing thru the tank. This turbulence lends for a pretty decent mass transfer of the ozone gas into the water. The tanks used in the Las Vegas water treatment plant are 32 feet tall. Remember that pressure is needed to transfer the ozone into the water solution. Every inch of water column used adds more pressure to the diffuser stone, located in the bottom of the tank. Therefore the taller the tank, the more pressure created at the bottom of the tank from the weight of the column of water, and the better the mass transfer of the ozone into the water.
Once the un-dissolved ozone reached the top of the tank, it is removed thru an air vent and destroyed by passing thru an ozone destruct system. All in all, this is a very safe and effective way to dissolve ozone in to water. However, when the designers of the fine bubble diffusion systems implemented this type of system on a washer/extractor, they left out a couple key ingredients. First, the column of water in a washer/extractor is nowhere near that of a 32 foot tall water tank. It is more like 12 inches. This allows for a much lower Mass Transfer efficiency of the ozone gas. Several ozone engineers that have studied this design have figured that the efficiency is somewhere in the 25-40% range at best. That means in the best case scenario, 60% of the ozone gas does not get dissolved. This is important in that 1% of un-dissolved ozone gas can easily make a room unsafe for the laundry workers. In the bottled water design, you have the ability to capture this un-dissolved gas and destroy it.
The main problem here is that the designers somehow forgot to include this important piece of the puzzle. Common sense tells you that if you force air(or Ozone) into an unsealed vessel, air (or Ozone) will escape out the vents of the machine on into the laundry room where it comes into contact with the laundry workers. Some companies have tried to cover up this major design error by installing an ambient ozone room monitor that in theory shuts off the ozone generators when this level is reached. In reality, the ozone generator is only on a few seconds before it is shut down due to over saturation of ambient ozone in the room. Then many times it takes several minutes for the room sensor to reset and let the system turn on the ozone generator again. I have witnessed the ozone generator being in operation for all of 45 seconds during a 7 minute wash step. That’s not going to kill many “Super Bugs”. I recently attended an ozone conference where the guest speaker said that a fine bubble diffusion system on a washer/extractor was “So easy to Build, that even a Caveman could do it”
It is not only that it is easy to build, it is also cheap to build this type of system. That is why there are so many on the market, and the low price keeps the attention of the potential uneducated buyer. The Venturi Injection System uses the pressure of the water stream in the piping to create suction. When applied to this suction port, 85-90% of the ozone gas is instantly dissolved in to the water. Since we still have this water and un-dissolved gas contained inside the water piping, it can easily be run thru an Ozone Degassing chamber that removes the un-dissolved ozone gas where it can be destroyed. The end results are 100% dissolved ozonated water going to the washing machine. This is an over-simplification of the process. But it should get the point across without going into all the hydraulic engineering facts that make this a much more reliable and stable way to dissolves ozone into water. The disadvantage of the Venturi Injection System is that it costs more to build this type of system.
Another reason not to consider the fine bubble diffusion type of technology is the time it takes to build up to concentration. Those of you operating commercial laundries know that you never want to fill up a washer with cold water then steam up the temperature to 160 degrees, because it takes too long. I know there are some cases where this is unavoidable. But normally you would fill your washer up with your standard hot water usually 130-140 degrees, then add steam injection to raise the temperature in those wash steps where you need a little higher temperature. The same is true with the fine bubble diffuser. A Venturi Injection system instantly fills the washer with highly concentrated ozonated water that instantly starts the cleaning and sanitizing process. It can take as much as 20 minutes for a fine bubble diffusion system to reach the ozone levels where the Venturi Injection system starts. None of us have that much extra time available in our wash cycle. Finally, some Venturi Injection Systems on the market allow for larger than normal fill valves and water lines to be utilized.
This will allow for much faster fill times. I have witnessed a 60 lb washer/extractor being filled in under 25 seconds, whereas the standard fill time was in excess of 2 minutes. On a standard hospitality wash cycle with five fills, this would shorten your wash cycle by more than 7 minutes of total operating time. Washing an average of ten loads per day, this type of ozone laundry system would easily eliminate over one hour of processing per day. In the graph below, you can see two identical tests that show the concentration of ozone throughout a complete wash cycle. Notice in the Venturi Injection System, the levels start off high and slowly dissipate before the water is drained in each bath. You should also notice the effect of PH on each bath in the wash cycle. During the detergent and bleach steps, the ozone is reduced as it is counteracted by the higher PH from the wash chemistry. As the detergent and bleach are rinsed out, you can see that the ozone hangs around much longer.
In the fine bubble diffuser, you will notice that the ozone levels never reach above the 0.2 PPM of ozone in the water. It is also evident that the higher PH makes it hard for the ozone to overcome when using a Fine Bubble Diffuser. I am not stating that the fine bubble diffusion system does not work, or does not clean laundry, but rather, it is no where as effective as a properly designed Venturi Injection System. Results will be more consistent with the Venturi Injection System than a comparable Fine Bubble Diffusion System. Next month we will discuss “How to tell if your Ozone Laundry System is working”, and “How do we know if ozone will really kill the Super Bugs”. I invite you to email me with questions and topics that you would like to see covered in our monthly article Mark E. Moore is a 30 year veteran of the Industrial Laundry Equipment Industry. He is the owner of REM Laundry Systems, a Commercial Laundry Equipment Distributor/Laundry Consultation Group with over 40 employees and offices located in Versailles, KY and Nashville, TN.