A personal air filter with amplifier and vibrator having a mouthpiece and housing, incorporating filter media, with amplifier and vibrator. Inhaled air flows into the housing through the rearward vent end, past the amplifier and vibrator then through the filter media, and then out the forward end vent mouthpiece for inhalation of cleansed air by the user. The device is held to the mouth by the user's lips for the duration of the inhalation, without using hands or attachments to face. During inhalation and exhalation, the device is retained between the lips with the air flow moving through the housing in either direction past the amplifier producing audible sound for monitoring the duration of inhalation and exhalation facilitating controlled breathing. During vocalized respiration, the air flow moving past the oscillating vibrator produces oscillation vibration for internal massage or communicating said vibration to another person. A method of controlled breathing results from a sequential order and equivalent duration of breathing through abdominal, chest and thoracic regions of lungs, by the user monitoring the duration and rate of audible respiration. The device results in relaxation, rather than contraction, of muscles. Increased proficiency results in longer intervals of inhalation, retention and exhalation. Concentration on breathing cycle is achieved via the audible respiration effected by the resonant device housing. An oscillating membrane also transmits vibration to user's facial and cranial areas and internally massages body, as well as transmitting and communicating said vibration to another person facilitating educational, training leisure, pleasure, health, fitness and therapeutic use. Thus a considerably more versatile personal air filter is invented which can be conveniently, efficiently and effectively placed to the mouth for inhaling air, and is suitable for using during a variety of normal daily activities to filter inhaled air, audibly control breathing and vibrate to stimulate, optimize and enhance circulation.