I have been a lash artist for over 12 years, and started using my Whisper a little over a year ago. What I can’t stress enough is how I wish I started using it sooner. I started having sensitivities lashing and never thought anything of it being due to my daily surroundings. Yes, it is an investment- but absolutely the best when it comes to your health and well-being long term. I will continue to support this company as they have excellent customer service and truly care about their customers. Thank you, Aerovex!