HVAC Blog

It is not the UV it is the Ozone it produces which kills of the bugs. I keep getting conflicting reports re the use of ozone but I think that the problem is one of quantity - it can be harmful , like so many other things, when in excess. I noted some boxes in the local hospital the other day that looked like Ozone Generators and I think that could be an excellent idea. Having heard that ozone can help asthma sufferers I lent a generator to a friend and it gave him great relief, I guess hat it kills all the bugs/allergens it meets. It is now widely used for water purification - much better taste than Chlorine as it decomposes back to oxygen in a short while.

ehhh ? ... See THIS chart...

agreed that ozone packs a whallop ... including ability to eradicate fungus. But UV works too, so it's a synergistic effect is it not?

The uv breaks down the oxygen O₂ to O + O (atomic state) it then forms O₃ (Ozone)_. During daylight, or when there is UV present, this continues. The O₃ is unstable and goes back to O₂ especially at night and when u/v not present. Electric sparks give off U/V and so also form Ozone. Asimov's book "The Smell of Electricity" is very interesting and well worth reading.

It is the nascent oxygen in atomic form which is actually the reactive part caused bleaching and kills of bacteria and other nasties.

It is this oxygen form combined with the exhaust fumes of internal combustion engines which has an effect on smog and global warming! Also the Ozone layer blocks one hell of a lot of uv - that why there is a layer in the first place what gets through is the problem.

Need any more - let me know.

Please read before reply, for OP's sake.

Ozone is great stuff. Already said above. Have used Delzone's on pool, and read PLENTY about its generation and usage for other applications. Do not need education on ozone.

Post 2 gives link to a table about UV energy requirements to kill (lots of) different pathogens/organisms. It also states the energy put out by (their) Wyckomar UV systems.

Are you claiming (by responding to post2 and seemingly avoiding its point) that systems such as Wyckomars POU250 are actually NOT killing anything whatsoever with UV rays directly ... that they are simply using the UV to produce ozone and inject THAT into the water for sanitization purposes?

I'd like to know because I know some homes that could use appropriate suggestions for help with their water.

Guest is right. (Why don't you register? you deserve a GA )

UV can deactivate bacterial and virus directly from radiations. It also produces some ozone that does a similar job using another process.

It is not safe to breath large amount of ozone but if I have the choice between a little ozone and a very bad cold, I will choose the ozone.

ozone would be hard to apply in a hvac system, whereas UV is easily installed. Sounds like a good idea to me, anything that reduces the pathogen load in hvac systems has to be a plus.

I am the Queensland agent for a negative Ion/ozone generator made here in Australia and exported all around the world. My first introduction to the system was when I was searching for a product to deal with moisture generated mould. At that time the products main market was to Hotels and Clubs for removal of Beer and cigarette odours.

The company has expanded its application greatly and now has units working in the both odour and bacteria control areas. When the SARS outbreak was a factor in China the equipment was specified by the Chinese Government for their government buildings.

The actual unit is 250mm(10") long 200mm(8") wide and200mm( 8" )high. It has glass emitter amps fitted to the top which can be 150mm(6") to400mm(16") high.

A very well built product and very effective, the only shortcoming is its subjectivity to power factor influences, however the manufacturers are working on that.

More detail can be found on their web site www.bio-oxygen.com.au

Any question to them or myself on colin@reeson.net

I asked these guys

http://bit.ly/1NR7ms http://bit.ly/1pRDmW