| abstract |
The invention comprises a ventilator (1) with a pneumatic circuit system (2) for conveying breathing gas in a flow direction (d) to a patient, at least one such particle filter (31, 32, 33) being pneumatically switched within the pneumatic circuit system (2) is to which at least one light source (41, 42, 43) is aligned in a light emission direction (r). Here, light emitted onto the particle filter (31, 32, 33) is selected from a first wavelength range from 385 nm to 780 nm and from a second wavelength range from more than 780 nm to 2000 nm. |