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A different method for allergen sampling is to collect a dust sample directly from an environment. This is done by using a vacuum with a specialized collection device. The collection device connects to the hose of a vacuum and traps the dust in a filter sleeve. This filter sleeve is what is sent to the laboratory to be analyzed.
When the sample arrives at the laboratory, it is first sieved and weighed. It's recommended that all dust samples be sieved and weighed.


The purpose of sieving the sample is to remove large fibers that may have been picked up by the vacuum. Once those large fibers are removed, the dust sample is weighed because the results are typically reported per gram of dust, which makes the initial weight of the sample critical. The results can also be reported per square area, although this is rare.


Standard lab results turnarounds within 15 days. Faster turnarounds are available at an increased cost.

We get calls to test for allergens in a property for various reasons. It may be that a client of ours is allergic to cats and is purposely moving into an apartment building that has never allowed the occupants to have cats.

Before signing a lease or buying the apartment, our client wants to ensure that there are no cat allergens in the new space. 

A dust sample would be best for this case. Another more common example is when an individual is highly sensitive to a certain allergen and wants to know if that particular allergen is present in her home. An indoor air quality sample would be best for this case.

Poor air quality can be caused by many factors. Our air quality testers can test the air in every room in your house and examine circulation patterns. 

Most people who search for indoor air quality testing are experiencing symptoms when spending time in a building, and those symptoms abate when they leave the property. This is often referred to as “sick building syndrome”.

Identifying the causes of building-related symptoms is quite challenging. There are so many varying types of air quality issues that a comprehensive approach is required. Some people use the term “Air Quality Testing” to describe mold sampling or VOC tests. 

For indoor air quality allergen air sampling, the approach we prefer collects an air sample for 5 days. A device is set up so that it continuously runs for that time period. During that time, air passes through the apparatus and allergens are collected on an electrostatically charged plate. This type of sampling is very simple but it requires a sampling time that is longer than dust sampling. 

The indoor air quality sample is sent to a laboratory that analyzes the dust found inside of the device. Once it’s analyzed the results tell us the number of certain allergens per volume of air. Allergens included in the results are weed pollen, tree pollen, grass pollen, mouse, roach, dust mite, cat, and dog. We prefer to collect a sample in the bedroom, but it can also be helpful to test other areas of the home. 

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