Ventmed DS6 Auto CPAP for Sleep Apnea Price in Bangladesh. Ventmed DS-6 has automatically adjusted pressure for obstructive sleep restrictions and snoring. Ventmed CPAP machine adopts a high-efficiency brushless DC motor which makes the noise level very low. EPR / expiration pressure relief ensures comfortable breathing. Automatic synchronization technology adapts the ventilator to the patient's respiration rate, RAMP mode, gradually reaches the prescribed pressure.