The average Proventil hfa cash price is about $88.69 for a supply of: Aerosol Solution 108 (90 Base) MCG/ACT 7 Inhaler. Get our free Proventil hfa coupon and be eligible to receive a discount. You can reduce your Proventil hfa cost by up to 75% with our free Proventil hfa discount card. Bring it to a participating pharmacy near you to save on your prescription medication.Albuterol is a bronchodilator that relaxes muscles in the airways and increases air flow to the lungs. Albuterol inhalation is used to treat or prevent bronchospasm in people with reversible obstructive airway disease. Albuterol is also used to prevent exercise-induced bronchospasm. Albuterol inhalation may also be used for purposes not listed in this medication guide.