A year is a long time to suffer from invasive fungi, and if the toxicity of your air is, in any way, threatening your health, then you can build a very effective air purifier, which is better and cheaper than the store bought kind, using simple parts.
The key is a MERV 13+ filter (MERV Rating System [0]), because it's 90% effective for collecting particles 1-10 microns. TTBOMK, this is the size of most spores and the arthroconidia that cause this coccidioidomycosis [1].
Take a a 20" box fan (like this Lasko one [2], or available at the hardware store) and these 20x20x4 MERV 13 filters [3], $48, then either tape or bungee cord the filters to the back of the fan. Run it on an elevated surface so that it's not wasting the filter on cleaning up particles that have fallen from the air and can be swept and mopped up. Assemble 1 unit per room.
This works really well. If you're looking for other methods to improve your air quality, search for a UV A/C attachment (e.g. Calutech Blue-Ray), diffused oils (e.g. "Thieve's Oil" in a cold-air diffuser), and ventilation practices. For a wide rang of cases, these nasal screens [4] offer a great solution.
http://www.ushomefilter.com/products/air-filters/SC80-20X20X...
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