After you buy ProAir online, before using shake the canister well and follow the instructions to test spray it in the air. A fine mist will tell you that the inhaler is working properly. Avoid spraying the medication into your eyes. You will also need to test spray the inhaler if it hasn’t been used in over 2 weeks or if you’ve dropped the inhaler. Inhale Albuterol orally as directed by your doctor, generally every 4-6 hours as needed. Your doctor will base your dosage off of your response to treatment and medical condition. Don’t use ProAir more often or take more than your doctor has prescribed. Your condition won’t improve faster and you increase your risk of serious (potentially fatal) side effects. If you buy Airomir online to stop exercise induced asthma use as directed by your doctor, generally inhale 2 puffs 15-30 minutes before you exercise.