Did you know farmer's lung is an allergic lung disease that affects farm workers handling hay or other plant materials contaminated with mould and actinomycetes?

Did you know a single gram (dry weight) of hay could contain up to 102,000,000 (102 million) fungal spores and 1,200,000,000 (i.e., 1200 million) actinomycete spores?

Did you know that up to 1,600,000,000 (i.e.,1600 million) spores per cubic meter of air have been recorded in farm buildings while hay was being shaken for animals?

And did you know that on average a female worker performing yardwork inhales 18 liters of air per minute while a male worker inhales 29 liters per minute? That means a female worker in a farm building could be inhaling 1,728 million spores per hour while a male could be inhaling 2,784 million spores per hour!