Laser device with a gas-purged laser resonator and associated flushing

Laser device (1) with at least one with a purge gas (A) flushed laser resonator (2) which is arranged in a sweeping gas circuit (10) which in the flow direction of the purge gas (A) upstream of the laser resonator (2) has both a low pressure generator (11) for generating a Spulgasuberdrucks in the sweeping gas circuit (10) as well as between the low pressure generator (11) and the laser resonator (2) a cleaning device (12, 13) for cleaning of the purge gas (a), characterized, that the purge gas (A) is air, that the sweeping gas circuit (10) in the flow direction of the purge gas (A) downstream of the laser resonator (2) between the laser resonator (2) and the low pressure generator (11) has a to a Spulgasausenzufuhr (15) permanently open suction opening (16), and that generated in the operation of the low-pressure generator (11) purge gas pressure (p