Mould spores, pollen, radon, carbon monoxide and dander all lurk within homes, seeping through cracks in walls and floorboards, brought in on clothing or produced by wood burners, gas hobs and detergents used in cleaning.
Many big-brand honeys and other 'natural' sweeteners in supermarkets have been processed - heated and filtered - to rid them of pollen and naturally-occurring bacteria in raw, varieties.
To freshen the air of their own big factory, bees were flying in a row in every passageway, fanning their wings, working bees were carrying a lot of pollen from outside, and some were maiking honey and beeswax.
