Since we spend nearly 90–98% of our time indoors, it is not surprising that indoor allergens contribute to health concerns for millions of people year-round. Exposure to indoor allergens and airborne particulates can aggravate conditions such as hay fever, asthma, sinusitis, respiratory irritation, and other allergic-type reactions including sneezing, coughing, congestion, hives, watery eyes, and skin irritation.

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The most common indoor allergen sources include:

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• Pollen

• Dust mites

• Animal dander

• Mold spores

• Cockroach debris and droppings

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In many situations, these allergens can be managed through proper cleaning, source removal, filtration improvements, moisture control, and avoidance. However, there are circumstances where laboratory analysis and environmental sampling may be necessary to help identify hidden or non-visible allergens affecting the indoor environment.

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For example, an individual with severe cat allergies may be in the process of purchasing or renting a home where there is little or no background information regarding previous occupants or pets. During a walkthrough of the property, allergenic symptoms may quickly develop despite there being no visible signs of pet hair or contamination. In cases such as these, we can perform dust and surface sampling to identify microscopic remnants of cat dander and other allergens that cannot be seen with the naked eye.

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Allergen sampling can help identify the presence of indoor allergens and provide valuable information for sensitive individuals seeking to avoid allergic reactions and improve indoor air quality. In addition to allergen sampling, we also perform Particle Identification (Particle ID) sampling to identify unknown or unusual particulates that may be present within the indoor environment. Particle ID analysis can help determine the composition and origin of airborne or settled particles that may be affecting indoor air quality and occupant comfort.

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Examples of particulates that may be identified through Particle ID sampling include:

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• Fiberglass fragments

• Construction dust

• Insulation materials

• Soot and combustion particles

• Textile fibers

• Skin cells and biological debris

• Insect fragments

• Pollen and plant materials

• Fine particulate matter and unknown dusts

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Particle ID sampling can be especially beneficial when occupants are experiencing unexplained irritation, respiratory symptoms, excessive dust accumulation, or concerns related to construction, renovations, HVAC systems, or unidentified airborne debris. By combining allergen testing with advanced Particle ID analysis, we can help identify potential environmental contributors affecting indoor air quality and provide recommendations for corrective actions to help create a healthier indoor environment for sensitive individuals.