"Air Sample Report”. 0-50 spores these trace levels are not typically an issue. Finding Stachybotrys and other water markers like Chaetomium and Fusarium or high levels of Penicillium/Aspergillus can red flag an area. Understanding how these grow and where in the room samples were acquired are key to being able to understand the results. 50-200 spores still very low levels; the toxic mold species Stachybotrys and Memnoniella are some of the species to be considered an issue at this level. 200-500 spores the most common species (Penicillium/Aspergillus, Cladosporium and Curvularia) are typically not an issue and stay within the normal range. 500-1500 spores sometimes the Penicillium/Aspergillus & Cladosporium levels are in this range and do not require remediation. If water intrusion or mold was not found during the inspection, these levels can be caused by normal life in an enclosed environment. Again room and building condition. 1500-3000 spores this points to an issue that may be apparent, unless a corresponding number in the outdoor sample exists. If water intrusion or mold issue wasn’t found, these levels can be achieved by a hiding behind a wall, newly flipped homes commonly have hidden mold. Room environment including dusty home or type of HVAC system can have an amplification effect. Further inspection is warranted. Mold should be able to be visually assessed unless renovations covered over the mold i.e., a flipped house. 3000-10,000 spores without a corresponding number in the outdoor sample, some remediation is necessary. A perimeter clean-up is needed if a mold spore source has been identified. If water intrusion or mold issue wasn’t found, the area may need to be cleaned and the duct system should be evaluated. Mold should be able to be visually assessed unless renovations covered over the mold i.e., a flipped house. 10,000-25,000 spores without a corresponding number in the outdoor sample, a mold spore source is usually identified and remediation is needed. If no water intrusion or mold issue was found (including behind walls), the duct system may need to be cleaned and a general cleaning of the residence could be a contributing factor. 25,000-75,000spores a mold issue will be easy to identify. Clean up will be required and should be performed by a Professional Mold Remediator, remember approximately 11 states have mold regulations so hiring a state licensed mold company may be impossible. *It should be noted if you are buying an older home, that is being flipped, air testing is highly recommended. This is because flipped homes represent properties that have had deferred maintenance and were priced to sell below market rates. Meaning the property was sold cheaply allowing the flipper to rehab the home and sell for a profit. Guaranteed the flipper did not account for mold remediation in the rehab budget. We find remediation necessary is nearly 80% of homes that were flipped. Meaning post rehab when the buyer hires Kloeker Inspections to perform a mold inspection we find mold. It is a high percentage and speaks volumes regarding why mold due diligence is so important. That said you can also have testing performed that contradicts the visual assessment of the room. For example you can sample a room that has gross visible mold growth but you get results that are not what would be expected based on room conditions. This is usually attributable to the sample collection process, including sampler, height of sample, air flow, pump calibration, damage sampling cassette, room temperature as well as a variety of factors.