MASK-EEZ was created by Wizard Labs in 2020 out of necessity to control the foul odors we have unfortunately come to experience due to mask mandates in response to the Covid19 pandemic. Everyday ordinary people that aren't doctors or in professions that require masks daily, didn't know the challenges of trapped odors inside masks until 2020. MASK-EEZ eliminates odors within seconds of spraying your mask. Our specially formulated CERTIFIED NON-TOXIC product will leave your mask smelling like new again. You will not smell any "fresh" scents that only cover smells but rather nothing except CLEAN AIR. The formula has been CERTIFIED NON-TOXIC for the following: Not an eye irritant Not a skin irritant Not toxic by skin absorption Not toxic by inhalation Not toxic by oral ingestion Not a skin sensitizer