A breathing device includes a housing having an air inlet port, a filtered air outlet port, and a filter situated upstream of the outlet port and downstream of the inlet port. An inhalation valve is situated upstream of the outlet port and downstream of the filter and allows inhalation airflow toward the outlet port, but not vice versa. An aroma-effuser is situated upstream of the inhalation valve and downstream of the filter and entrains aroma in the airflow to be inhaled.