A new study by Bosch floorcare has revealed that 27% of homeowners only vacuum‘out of sight’ areas in their homes once a year. Worryingly, these ‘black spots’, which include behind the sofa or under the bed, can cause a hazard to our health, harbouring harmful bacteria and particles which, when airborne, canexacerbate and trigger a range of respiratory illnesses such as asthma. Bosch recommends ensuring that yourvacuum cleaner has a HEPA filter, and making sure you move furniture and vacuum thoroughly at least once every month to prevent a buildup of static dust.