Hepa filter helps?
Just received Geiger counter (could you imagine a month and a half ago we'll by buying Geiger counters?), I measured 0.12 msv in the middle of the room and 0.26 msv on my hepa filter that I run non-stop for the last week. I'm in Vancouver, BC. Can somebody comment? Does it mean that filter catches at least something?
Rregular HEPA filters only
Rregular HEPA filters only catch particles .3 microns and larger. Most air particles are actually smaller than .3 microns so there is only one choice for an air purifier if you want to catch all the particles. IQ Air. Expensive yes, but at least you are not throwing your money away on another cheap consumeristic piece of junk. IQ Air is industrial quality so hospitals and the military use them.
I am a dealer so I I have one in every room of my house. Our baby girls breathes the cleanest air on planet Earth.
IQ Air
Yes, very glad we have one of these too.
Nice advertisement, but I
Nice advertisement, but I think this is wrong. From our efficiency testing where we used identical systems with one using 0.3 micron HEPA and the other using 0.3 micron HEPA with activated charcoal (~99.9% efficiency), we note the HEPA is ~60% efficient relative to the activated charcoal/HEPA filter. The HEPA does not see everything, but the efficiency is pretty good.
Hello Dr, How was my
Hello Dr,
How was my statement an advertisement? I did not even include a way for people to contact me. LOL
Facts are that most air particles are smaller than .3 micron so most air purifiers leave the bulk of pollution in the air. Ignore that fact if it makes you feel better. Austin Air purifiers are also better than the pack because they filter down to .1 micron. The better air purifier companies make sure and filter down past the standard .3 micron mark. Why do you think they do this?
What brand of air purifier are you using so people can look into getting one. No doubt your goal is to help people so they are able to protect themselves.
Dr.Chivers, thank you for
Dr.Chivers, thank you for your reply, I feel better knowing that there is something we can do to protect our families (even if the risk is small), can you possibly recommend how often do we need to change the filters and activated charcoal layer? Manufacturer recommends every year, but it seems long considering the circumstances.
Good Question
Thanks for asking that. I was wondering the same thing. We just bought a HEPA 300 CADR .3 and I was also wondering how often we should change the filter...
You need to have a TRUE HEPA
You need to have a TRUE HEPA filter to even be in the game. Many air purifier companies use the term "HEPA" very very loosely. You see in the USA people love to spend money on things they see on an infomercial or anything with some silly feature like "plasma wave" or "ionic" etc. So business people just make cheap plastic junk and make a snazzy commercial with lots of "but wait, there is more!" cheesy type statements. Consumers love buying this junk and the business people make millions because the product cost pennies to make.
So the term HEPA gets thrown around a lot since most people do not bother to do their own research. And of course the government does not care as long as their friends are awash with money. In Europe they have higher standards and companies cannot so easily get away with this type of behavior.
Good point
I did some research before we bought ours; it is a true HEPA filter (I love how our old one, that someone gave us, said HEPA TYPE. Yeah, SO the same thing.) and it comes with the activated charcoal pre-filters. The IQ systems look awesome but there is no WAY we could afford one right now. As it was, the only reason we were able to get ours was because they had a sale at Costco. Normally the one I got is $399.99.