"Shake to Awake!" Max knows how to do this and so should you! Just before you spray some probiotics onto a surface to clean, give the bottle a shake. It's going to awaken the beneficial bacteria so that you can spray and introduce it effectively into to your home or office environment. You can breathe a sigh of relief knowing that the power of probiotics are there working to protect you for up to 5 days. Don't forget this helpful step whenever you use any of the AIRBIOTICS or PETBIOTICS products. It is always a good practice. Do what Max does, and "Shake"!