What Most Air Purifier Makers Don't Want You to Know

You don't get very far down the air purifier aisle before your head starts swimming with questions about how all of these units compare with each other. So far, various organizations have come up with new ratings to try to make it easier to compare one to the other. Each of the ratings seems to fall short in determining the actual air cleaning ability of the unit.

MERV (Minimum Efficiency Reporting Value) ratings apply to the efficiency of an air filter, while the CADR (Clean Air Delivery Rate) rating applies to a self-contained air purifier. The real information you should be concerned with is how much air is this machine capable of cleaning and how clean is it going to be when the machine or filter has done its job.

It's not the ratings that are lacking; it's the fact that there is no frame of reference. If a filter is MERV 10, is that better or worse than a MERV 9. Also, if it is better, it is difficult to tell how much better. You have the same situation with the CADR rating. Is the 4 rating better than the 5, and then, how much better?

What it all comes down to is; how much air is resulting and how clean is the air? In order to understand how clean the air is you have to know the particles you are trying to remove. For instance, pollen, dust and animal dander can be controlled with a system that is effective down to 1 micron (one micron is one millionth of a meter). If you want to clean the air from second hand smoke and bacteria, you have to find a system that is effective down to 0.3 microns. One fact that is not always reported is that the most harmful particles are those smaller than 1 micron.

In order to determine how much clean air is being delivered (this is what the CADR rating is attempting to accomplish), you must do a little math. The simple formula is:

CFM (cubic feet of air moved per minute) x 60 (minutes per hour), then divide by 6 (for number of air changes per hour), then divide by the height of the room (ex. 8ft), then calculate the square root. This will give you the size of room that the unit is capable of cleaning.

The formula looks complicated, but if you walk through it once or twice, it will start to make sense. Lets say you are looking at a unit that has a 500cfm fan. You also know that the height of your ceiling is 8ft. So you multiply 500 x 60 = 30,000. Now divide by 6 air changes per hour = 5,000. Then divide by your room height of 8ft = 625. Now find the square root = 25. The machine is capable of cleaning a room size of 25 x 25 x 8ft. This should give you a rough idea of what room you could put this unit in.

It is important that you include the number of air changes per hour. Each air-cleaning device should be rated for 4-8 air changes per hour to ensure that all of the air in the room is getting "scrubbed". When you can determine how much air is being cleaned and how clean that air is, you will know what the air purifier manufacturer don't want you to know.

I hope this information has been helpful in helping you understand a very simple technology that sounds much like magic.

Friends Link : Buy Speakers Buy Speakers wher you can find more save about doorbell and Nailer Rotary Mower find save rotary mower, rotary lawn mower, and much more save.

How to Find the Best Consumer Reports When Buying an Air Purifier

There are many benefits to reading other peoples experiences regarding product purchases, these documents are often referred to as Consumer Reports or Consumer Feedback.

For the exercise of buying an air purifier for your home, reading other peoples buying experiences will definitely be a big help in your deciding on the best suited product for you and your home.

Some of the major stand out benefits for reading other peoples experiences come into play when you have either never before owned an Air Purifier and have no idea what a good air cleaner was even if it kicked sand in your face or if you have owned an air purifier in the past and were not overly happy with the results you got from the particular product.

With any buying decision it is always a good practice to do some research whenever your going to spend your hard earned cash on a product that you expect to be of lasting value.

This research could be simply asking your Friends and family members who you know have purchased similar products, or checking out information produced by independent research companies who test the performance of certain products and brands of products and also by utilizing the Internet.

Consumer reports can come in many, many forms, the web is full of individuals who have shared their buying experiences, from blogs, forums, review sites and major shopping sites like Amazon.com, all have many user comments about a whole range of different products.

When looking for these consumer reviews online, there are a couple of tips I would like to suggest you try to help you find informative and non-biased customer feedback.

Search Engines.

When using the search engines, use your primary search phrase along with the words "Product Reviews" or "Feedback" so your search query should look like "Air purifiers customer feedback" or something similar.

Google Product Search.

Google have a great feature hat helps to find products specific to your needs, often the results returned have a customer rating and a number of reviews next to the item, to find this feature in Google simply do a Google for the the term "Google Product Search", and you shouldn't have any difficulty finding reviews from there.

Google Blog Search.

Using the Google blog search will help you narrow down your searches for blogs that would cover topics related to Air cleaners or other household appliances, you should be able to find a few comments related to your search query on these blogs, remember it's the comments you really want to read.

Twitter.

Twitter is a great tool for getting real time results for just about anything, there is a great little search feature on the twitter site that you can simply type in your primary search term, in this case it would be Air Purifier or Air cleaner and see what comes back, here will be people tweeting about all sorts of stuff, try it, it works.

Amazon.com

Amazon would have to be my favorite, there are thousands of users comments and experiences on Amazon, simply perform a product search just as you would using your favorite search engine and under the product listing should be a link to customer comments and reviews (Should be next to the star ratings) click on that link to read what people are saying about the specific Air purifier your wanting to buy.

As you can see there are many ways to find useful and non biased information about Air purifiers, by doing a little bit of groundwork before purchasing you could be saving a heap of money and enjoying the benefits of cleaner healthier air a whole lot sooner.

Friends Link : Buy Speakers Way to find about Goose Down Comforter,Down Comforter