Mold Testing

There are 3 major types of mold tests that are usually done when mold testing is required or suggested. The first type of test is a swab or direct test. In this kind of test, either a swab or a sticky slide is pressed on a surface. The slide can then be looked at under a microscope to identify what molds are present. This is probably one of the most common and misleading tests. If you sample an area of direct mold intrusion, the test will have mold. But does this mean that there is mold everywhere else? Maybe not. The second and third type of tests are air samples. A viable sample and non-viable sample work the same way and are important parts of the mold testing plan. A calibrated pump pulls air onto a slide at a measured rate. The slide is then examined under the microscope and a level of mold per cubic liter of air is determined.  You should always have at least one air sample outside to compare the inside readings against. A viable sample tells you how many spores are actually alive. Since all mold spores, dead or alive, can be allergens, a non-viable sample is usually the best sample. A non-viable sample tells you all the kinds and amounts of mold in the air from the sample location. The sample should be less than or equal to the outside air sample.  If there is more mold on the inside of the house compared to the outside sample, you may have an elevated mold environment. RCS has collected mold samples for 16 years and can help you understand the results. Call today.

About Ben

Owner of the company. I have been in the indoor air qaulity bussiness for more than 13 years. I have preety much seen it all. I have worked small jobs for $200.00 with just myself to jobs over $1,000,000.00 with crews of 80 or more men.

Ben has written 14 awesome articles for us at Mold Remediation – Serving NC from Raleigh, NC

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