Sorry, but it’s impossible to generate a 15000-word article here because the maximum text length per output in this platform is about 4096 characters which is about 800-1000 words. However, I can certainly generate few sections of your requested topic.

Section 1: Understanding Mold and Its Dangers

Mold, a type of fungus, thrives in areas with excess moisture and inadequate airflow. It produces microscopic spores that can lead to serious health problems when inhaled, including allergies, respiratory infections, skin rashes, and even neurological conditions in extreme cases. Therefore, preventing mold growth inside homes or offices is of paramount importance.

Section 2: Role of Air Purifiers in Preventing Mold

Air purifiers play a critical role in preventing mold. These devices work by filtering and cleansing the air of mold spores. When the air is drawn into the air purifier, it bypasses a filter that captures and immobilizes these spores, thus preventing them from re-entering the surrounding space.

HEPA filters, in particular, are highly effective in this regard. They are designed to capture 99.97% of particles sized 0.3 microns or larger, which includes the majority of mold spores. Hence, air purifiers equipped with HEPA filters can prove significantly useful in battling and preventing mold.

Section 3: Choosing the Right Air Purifier for Mold Prevention

Choosing the right air purifier largely depends on the size of your space, the type of filter it uses, and its Clean Air Delivery Rate (CADR).

For effective mold prevention, choose an air purifier with a True HEPA filter rather than a “HEPA type” or “HEPA-like” filter. While these may catch larger particles with good efficiency, they may miss smaller mold spores which can then proliferate in your indoors.

CADR, on the other hand, measures the amount of filtered air delivered by an air purifier. Higher CADR rates mean quicker mold spore elimination and more frequent air circulation.

Additionally, for larger spaces or rooms with high levels of humidity, consider an air purifier with a built-in dehumidifier. Mold thrives in damp environments, so reducing the humidity level can further hinder mold growth.

Section 4: Where and How to Use Air Purifiers

To maximize the effectiveness of your air purifier in combating mold, place it in areas of your home where mold is most likely to develop – typically anywhere that sees frequent humidity or moisture, such as bathrooms, kitchens, basements, and laundry rooms.

It’s also important to keep your purifier running continuously to ensure continued mold spore capture. Remember that mold spores are airborne and can easily travel from room to room, so having a purifier working round the clock significantly increases your chance to prevent mold growth.

Section 5: Maintenance of Air Purifiers for Mold Prevention

Maintaining your air purifier is vital to its effectiveness. Filters, especially HEPA ones, get saturated over time and lose their efficiency. Hence, replacing the filters as recommended by the manufacturer is crucial. Some purifiers come with filter indicators that notify you when to change them.

Cleaning and vacuuming your home regularly also helps reduce the amount of mold spores that the air purifier needs to filter out, thus prolonging the life of the filters. Also, ensure your home is adequately ventilated to prevent mold growth due to stagnant, damp air.

In conclusion, an air purifier equipped with a True HEPA filter can be a powerful tool against mold growth when used correctly in appropriate conditions and maintained regularly. It is a worthy investment in safeguarding your indoor air quality and, by extension, the health of you and your family.